1
|
Shih YJ, Wu ZL, He YC. Tuning transition metals layered-electroplated on bimetallic M xCu 1-x crystallites (M = Fe, Co, Ni, and Zn) to boost ammonia yield in electrocatalytic reduction of nitrate wastewaters. JOURNAL OF HAZARDOUS MATERIALS 2024; 477:135276. [PMID: 39088953 DOI: 10.1016/j.jhazmat.2024.135276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2024] [Revised: 07/11/2024] [Accepted: 07/19/2024] [Indexed: 08/03/2024]
Abstract
Nitrate-containing wastewaters have been recognized as an important source for recovering valuable ammonia. This work targets integrating a series of transition metals (M = Fe, Co, Ni, and Zn) onto Cu crystallites through a layered-plating method. The strategy to promote the nitrate reduction reaction (NO3-RR) involves tuning M surfaces in specific ratios for the hydrogenation of nitrogenous species on MxCu1-x electrodes. Electrochemical analysis and operando Raman spectra identified that a solid-state Cu2O-to-Cu0 transition acted as the primary mediator, while its high corrosion resistance protected the M metals or metal oxides from inactivation in nitrate-to-ammonia pathways. Among bimetals, FeCu was the best combination, with the order of performance in constant potential electrolysis, Fe0.36Cu0.64 > Ni0.73Cu0.27 > Co0.34Cu0.66 > Zn0.64Cu0.36. The collaboration of Cu and M in deoxygenating nitrate and subsequently hydrogenating NOx at respective overpotentials is key to enhancing ammonia yield. Nitrate removal (96 %), NH3 selectivity (93 %), and Faradaic efficiency (92 %) were optimized on Fe0.36Cu0.64 electrode at -0.6 V (vs. RHE). A steady yield as high as 14,080 μg h-1 mg-1 was achieved at 30 mA cm-2 using a real water sample (NO3- ∼ 500 mg-N L-1, pH 4) as the input stream, continuously operated for 96 h.
Collapse
Affiliation(s)
- Yu-Jen Shih
- Institute of Environmental Engineering, National Sun Yat-sen University, Taiwan.
| | - Zhi-Lun Wu
- Institute of Environmental Engineering, National Sun Yat-sen University, Taiwan
| | - Yi-Chun He
- Institute of Environmental Engineering, National Sun Yat-sen University, Taiwan
| |
Collapse
|
2
|
Quintal J, McGuire C, Shi T, Huang WH, Chow D, Hung CK, Jiang DT, Hwang BJ, Chen A. Substrate-Assisted Atomic Dispersion of Cobalt for Alkaline Water Electrolysis. J Phys Chem Lett 2024; 15:9208-9215. [PMID: 39225476 DOI: 10.1021/acs.jpclett.4c02297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/04/2024]
Abstract
Atomically dispersed single-atom catalysts have recently attracted broad research interest due to their high atom efficiency and unique catalytic performance. In this study, atomic dispersion of cobalt is achieved using a chemical bath deposition method on a highly stable alkali titanate film (Ti/KTiO). These films were characterized using a variety of techniques, with atomic dispersion confirmed via grazing incidence X-ray absorption spectroscopy and ab initio modeling of single-atom systems. This modeling indicated that the alkali ion incorporated into the film facilitates atomic dispersion. Experimentally, the Ti/KTiO-supported Co(OH)2 catalysts exhibited remarkable electrochemical performance, with an overpotential of 163 mV to achieve a current density of 10 mA cm-2 with a catalyst loading of ∼0.1 mg cm-2 and high stability. These results show the potential of Ti/KTiO/Co(OH)2 catalysts for atomically efficient hydrogen production.
Collapse
Affiliation(s)
- Jonathan Quintal
- Electrochemical Technology Center, Department of Chemistry, University of Guelph, 50 Stone Road East, Guelph, ON N1G 2W1, Canada
| | - Cameron McGuire
- Electrochemical Technology Center, Department of Chemistry, University of Guelph, 50 Stone Road East, Guelph, ON N1G 2W1, Canada
- Department of Physics, University of Guelph, 50 Stone Road East, Guelph, ON N1G 2W1, Canada
| | - Tony Shi
- Electrochemical Technology Center, Department of Chemistry, University of Guelph, 50 Stone Road East, Guelph, ON N1G 2W1, Canada
| | - Wei-Hsiang Huang
- National Synchrotron Radiation Research Center (NSRRC), 101 Hsin-Ann Road, Hsinchu Science Park, Hsinchu 300092, Taiwan
| | - Darren Chow
- Electrochemical Technology Center, Department of Chemistry, University of Guelph, 50 Stone Road East, Guelph, ON N1G 2W1, Canada
| | - Chi-Kai Hung
- Electrochemical Technology Center, Department of Chemistry, University of Guelph, 50 Stone Road East, Guelph, ON N1G 2W1, Canada
| | - De-Tong Jiang
- Department of Physics, University of Guelph, 50 Stone Road East, Guelph, ON N1G 2W1, Canada
| | - Bing Joe Hwang
- Sustainable Electrochemical Energy Development (SEED) Center, National Taiwan University of Science and Technology, No. 43 Keelung Road, Section 4, Da'an District, Taipei City 106335, Taiwan
| | - Aicheng Chen
- Electrochemical Technology Center, Department of Chemistry, University of Guelph, 50 Stone Road East, Guelph, ON N1G 2W1, Canada
| |
Collapse
|
3
|
Chiu YH, Chung RJ, Kongvarhodom C, Saukani M, Yougbaré S, Chen HM, Wu YF, Lin LY. Facile Combination of Bismuth Vanadate with Nickel Tellurium Oxide for Efficient Photoelectrochemical Catalysis of Water Oxidation Reactions. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 39235429 DOI: 10.1021/acsami.4c07117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/06/2024]
Abstract
Bismuth vanadate (BVO) having suitable band edges is one of the effective photocatalysts for water oxidation, which is the rate-determining step in the water splitting process. Incorporating cocatalysts can reduce activation energy, create hole sinks, and improve photocatalytic ability of BVO. In this work, the visible light active nickel tellurium oxide (NTO) is used as the cocatalyst on the BVO photoanode to improve photocatalytic properties. Different NTO amounts are deposited on the BVO to balance optical and electrical contributions. Higher visible light absorbance and effective charge cascades are developed in the NTO and BVO composite (NTO/BVO). The highest photocurrent density of 6.05 mA/cm2 at 1.23 V versus reversible hydrogen electrode (VRHE) and the largest applied bias photon-to-current efficiency (ABPE) of 2.13% are achieved for NTO/BVO, while BVO shows a photocurrent density of 4.19 mA/cm2 at 1.23 VRHE and ABPE of 1.54%. Excellent long-term stability under light illumination is obtained for NTO/BVO with photocurrent retention of 91.31% after 10,000 s. The photoelectrochemical catalytic mechanism of NTO/BVO is also proposed based on measured band structures and possible interactions between NTO and BVO. This work has depicted a novel cocatalytic BVO system with a new photocharging material and successfully achieves high photocurrent densities for catalyzing water oxidation.
Collapse
Affiliation(s)
- Yu-Hsuan Chiu
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 10608, Taiwan
| | - Ren-Jei Chung
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 10608, Taiwan
| | - Chutima Kongvarhodom
- Department of Chemical Engineering, King Mongkut's University of Technology Thonburi, 126 Pracha-u-thit, Toong-kru, Bangkok 10140, Thailand
- Department of Chemical Engineering, University of New Brunswick, Fredericton, New Brunswick E3B5A3, Canada
| | - Muhammad Saukani
- Department of Mechanical Engineering, Faculty of Engineering, Universitas Islam Kalimantan MAB, Jl. Adhyaksa No. 2, Banjarmasin 70124, Indonesia
| | - Sibidou Yougbaré
- Institut de Recherche en Sciences de la Santé (IRSS-DRCO)/Nanoro, Ouagadougou 03 7192-03, Burkina Faso
| | - Hung-Ming Chen
- Gingen Technology Co., LTD., Rm. 7, 10F., No. 189, Sec. 2, Keelung Road, Xinyi District, Taipei 11054, Taiwan
| | - Yung-Fu Wu
- Department of Chemical Engineering, Ming Chi University of Technology, New Taipei City 24301, Taiwan
| | - Lu-Yin Lin
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 10608, Taiwan
| |
Collapse
|
4
|
Belami D, Lindley M, Jonnalagadda US, Goncalves Bullock AM, Fan Q, Liu W, Haigh SJ, Kwan J, Regmi YN, King LA. Active and highly durable supported catalysts for proton exchange membrane electrolysers. EES CATALYSIS 2024; 2:1139-1151. [PMID: 39246682 PMCID: PMC11375952 DOI: 10.1039/d4ey00026a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Accepted: 06/12/2024] [Indexed: 09/10/2024]
Abstract
The design and development of supported catalysts for the oxygen evolution reaction (OER) is a promising pathway to reducing iridium loading in proton exchange membrane water electrolysers. However, supported catalysts often suffer from poor activity and durability, particularly when deployed in membrane electrode assemblies. In this work, we deploy iridium coated hollow titanium dioxide particles as OER catalysts to achieve higher Ir mass activities than the leading commercial catalysts. Critically, we demonstrate state-of-the-art durabilities for supported iridium catalysts when compared against the previously reported values for analogous device architectures, operating conditions and accelerated stress test profiles. Through extensive materials characterisations alongside rotating disk electrode measurements, we investigate the role of conductivity, morphology, oxidation state and crystallinity on the OER electrochemical performance. Our work highlights a new supported catalyst design that unlocks high-performance OER activity and durability in commercially relevant testing configurations.
Collapse
Affiliation(s)
- Debora Belami
- Faculty of Science and Engineering, Manchester Metropolitan University Chester Street M1 5GD UK
| | - Matthew Lindley
- Department of Materials, University of Manchester Oxford Road Manchester M13 9PL UK
| | - Umesh S Jonnalagadda
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University 62 Nanyang Drive 637459 Singapore
| | | | - Qianwenhao Fan
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University 62 Nanyang Drive 637459 Singapore
| | - Wen Liu
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University 62 Nanyang Drive 637459 Singapore
| | - Sarah J Haigh
- Department of Materials, University of Manchester Oxford Road Manchester M13 9PL UK
| | - James Kwan
- Department of Engineering Science, University of Oxford Parks Road Oxford OX1 3PJ UK
| | - Yagya N Regmi
- Faculty of Science and Engineering, Manchester Metropolitan University Chester Street M1 5GD UK
| | - Laurie A King
- Faculty of Science and Engineering, Manchester Metropolitan University Chester Street M1 5GD UK
| |
Collapse
|
5
|
Acharya N, Karki SB, Giordano L, Ramezanipour F. A Design Strategy for Highly Active Oxide Electrocatalysts by Incorporation of Oxygen-Vacancies. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2403415. [PMID: 39225396 DOI: 10.1002/smll.202403415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2024] [Revised: 08/05/2024] [Indexed: 09/04/2024]
Abstract
Using both density functional theory (DFT+U) simulations and experiments, we show that the incorporation of an ordered array of oxygen-vacancies in a perovskite oxide can lead to enhancement of the electrocatalytic activity for the oxygen-evolution reaction (OER). As a benchmark, LaCoO3 was investigated, where the incorporation of oxygen-vacancies led to La3Co3O8 (LaCoO2.67), featuring a structural transformation. DFT+U simulations demonstrated the effect of oxygen-vacancies on lowering the potential required to achieve negative Gibbs Free Energy for all steps of the OER mechanism. This was also confirmed by experiments, where the vacancy-ordered catalyst La3Co3O8 (LaCoO2.67) showed a remarkable enhancement of electrocatalytic properties over the parent compound LaCoO3 that lacked vacancies. We also synthesized and studied an intermediate system, with a smaller degree of oxygen-vacancies, which showed intermediate electrocatalytic activity, lower than La3Co3O8 and higher than LaCoO3, confirming the expected trend and the impact of oxygen-vacancies. Furthermore, we employed additional DFT+U calculations to simulate a hypothetical material with the same formula as La3Co3O8 but without the vacancy-order. We found that the gap between centers of Co d and O p bands, which is considered an OER descriptor, would be significantly greater for a hypothetical disordered material compared to an ordered system.
Collapse
Affiliation(s)
- Narayan Acharya
- Department of Chemistry, University of Louisville, Louisville, Kentucky, 40292, USA
| | - Surendra B Karki
- Department of Chemistry, University of Louisville, Louisville, Kentucky, 40292, USA
| | - Livia Giordano
- Department of Materials Science, University of Milano-Bicocca, Via Cozzi 55, Milano, 20125, Italy
| | - Farshid Ramezanipour
- Department of Chemistry, University of Louisville, Louisville, Kentucky, 40292, USA
| |
Collapse
|
6
|
Monama GR, Ramoroka ME, Ramohlola KE, Seleka MW, Iwuoha EI, Modibane KD. Terbium- and samarium-doped Li 2ZrO 3 perovskite materials as efficient and stable electrocatalysts for alkaline hydrogen evolution reactions. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024:10.1007/s11356-024-34846-x. [PMID: 39215922 DOI: 10.1007/s11356-024-34846-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2024] [Accepted: 08/25/2024] [Indexed: 09/04/2024]
Abstract
The preparation of highly active, rare earth, non-platinum-based catalysts for hydrogen evolution reactions (HER) in alkaline solutions would be useful in realizing green hydrogen production technology. Perovskite oxides are generally regarded as low-active HER catalysts, owing to their unsuitable hydrogen adsorption and water dissociation. In this article, we report on the synthesis of Li2ZrO3 perovskites substituted with samarium and terbium cations at A-sites for the HER. LSmZrO3 (LSmZO) and LTbZrO3 (LTbZO) perovskite oxides are more affordable materials, starting materials in abundance, environmentally friendly due to reduced usage of precious metal and moreover have potential for several sustainable synthesis methods compared to commercial Pt/C. The surface and elemental composition of the prepared materials have been confirmed by X-ray photoelectron spectroscopy (XPS). The morphology and composition analyses of the LSmZO and LTbZO catalysts showed spherical and regular particles, respectively. The electrochemical measurements were used to study the catalytic performance of the prepared catalyst for hydrogen evolution reactions in an alkaline solution. LTbZO generated 2.52 mmol/g/h hydrogen, whereas LSmZO produced 3.34 mmol/g/h hydrogen using chronoamperometry. This was supported by the fact that the HER electrocatalysts exhibited a Tafel slope of less than 120 mV/dec in a 1.0 M alkaline solution. A current density of 10 mA/cm2 is achieved at a potential of less than 505 mV. The hydrogen production rate of LTbZO was only 58.55%, whereas LSmZO had a higher Faradaic efficiency of 97.65%. The EIS results demonstrated that HER was highly beneficial to both electrocatalysts due to the relatively small charge transfer resistance and higher capacitance values.
Collapse
Affiliation(s)
- Gobeng R Monama
- SensorLab (University of the Western Cape Sensor Laboratories), 4Th Floor Chemical Sciences Building, University of the Western Cape, Bellville 7535, Cape Town, South Africa
- Nanotechnology Research Lab, Department of Chemistry, School of Physical and Mineral Sciences, University of Limpopo (Turfloop), Polokwane, 0727, Sovenga, South Africa
| | - Morongwa E Ramoroka
- SensorLab (University of the Western Cape Sensor Laboratories), 4Th Floor Chemical Sciences Building, University of the Western Cape, Bellville 7535, Cape Town, South Africa
| | - Kabelo E Ramohlola
- SensorLab (University of the Western Cape Sensor Laboratories), 4Th Floor Chemical Sciences Building, University of the Western Cape, Bellville 7535, Cape Town, South Africa
- Nanotechnology Research Lab, Department of Chemistry, School of Physical and Mineral Sciences, University of Limpopo (Turfloop), Polokwane, 0727, Sovenga, South Africa
| | - Marema W Seleka
- Nanotechnology Research Lab, Department of Chemistry, School of Physical and Mineral Sciences, University of Limpopo (Turfloop), Polokwane, 0727, Sovenga, South Africa
| | - Emmanuel I Iwuoha
- SensorLab (University of the Western Cape Sensor Laboratories), 4Th Floor Chemical Sciences Building, University of the Western Cape, Bellville 7535, Cape Town, South Africa
| | - Kwena D Modibane
- Nanotechnology Research Lab, Department of Chemistry, School of Physical and Mineral Sciences, University of Limpopo (Turfloop), Polokwane, 0727, Sovenga, South Africa.
- DSI-NRF SARChI Chair in Photoelectrocatalytic Hydrogen Production, Department of Chemistry, School of Physical and Mineral Sciences, University of Limpopo (Turfloop), Polokwane, 0727, Sovenga, South Africa.
| |
Collapse
|
7
|
Kogler M, Olgiati M, Ostermann M, Rachle P, Gahlawat S, Valtiner M, Pichler CM. Bulk-independent surface oxide composition controls the electrochemical performance of high-entropy alloys. JOURNAL OF MATERIALS CHEMISTRY. A 2024; 12:22565-22575. [PMID: 39206340 PMCID: PMC11348829 DOI: 10.1039/d4ta03619k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/24/2024] [Accepted: 07/26/2024] [Indexed: 09/04/2024]
Abstract
Multi-element alloys and high-entropy alloys show promising electrocatalytic behavior for water splitting and other catalytic reactions, due to their highly tunable composition. While preparation and synthesis of these materials are thoroughly investigated, the true reactive surface composition is still not well understood, as it may significantly differ from the bulk composition. Precise knowledge and understanding of resulting surface composition is crucial for effective control of the electrocatalytic performance. In this work, low energy ion scattering spectroscopy was applied to determine the surface oxide composition of a series of Ni-based multi-metallic alloys with Mn, Fe, Co, and Cr under alkaline, neutral and acidic conditions. The composition of the surface oxide was investigated with sub-nanometer depth resolution. In electrochemical tests, good catalytic activity was found for the oxygen evolution reaction, although a strong dependence on the selected reaction conditions was observed. The surface composition under OER conditions deviates significantly from the bulk composition. No significant benefit of high entropy alloying compared with binary or ternary alloys concerning catalytic OER performance was found.
Collapse
Affiliation(s)
- Matthias Kogler
- Institute of Applied Physics, Vienna University of Technology 1040 Vienna Austria
- Center for Electrochemical Surface Technology GmbH 2700 Wr. Neustadt Austria
| | - Matteo Olgiati
- Institute of Applied Physics, Vienna University of Technology 1040 Vienna Austria
- Center for Electrochemical Surface Technology GmbH 2700 Wr. Neustadt Austria
| | - Markus Ostermann
- Center for Electrochemical Surface Technology GmbH 2700 Wr. Neustadt Austria
| | - Philipp Rachle
- Institute of Applied Physics, Vienna University of Technology 1040 Vienna Austria
| | - Soniya Gahlawat
- Institute of Applied Physics, Vienna University of Technology 1040 Vienna Austria
- Center for Electrochemical Surface Technology GmbH 2700 Wr. Neustadt Austria
| | - Markus Valtiner
- Institute of Applied Physics, Vienna University of Technology 1040 Vienna Austria
- Center for Electrochemical Surface Technology GmbH 2700 Wr. Neustadt Austria
| | - Christian M Pichler
- Institute of Applied Physics, Vienna University of Technology 1040 Vienna Austria
- Center for Electrochemical Surface Technology GmbH 2700 Wr. Neustadt Austria
| |
Collapse
|
8
|
Dongare S, Zeeshan M, Aydogdu AS, Dikki R, Kurtoğlu-Öztulum SF, Coskun OK, Muñoz M, Banerjee A, Gautam M, Ross RD, Stanley JS, Brower RS, Muchharla B, Sacci RL, Velázquez JM, Kumar B, Yang JY, Hahn C, Keskin S, Morales-Guio CG, Uzun A, Spurgeon JM, Gurkan B. Reactive capture and electrochemical conversion of CO 2 with ionic liquids and deep eutectic solvents. Chem Soc Rev 2024; 53:8563-8631. [PMID: 38912871 DOI: 10.1039/d4cs00390j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/25/2024]
Abstract
Ionic liquids (ILs) and deep eutectic solvents (DESs) have tremendous potential for reactive capture and conversion (RCC) of CO2 due to their wide electrochemical stability window, low volatility, and high CO2 solubility. There is environmental and economic interest in the direct utilization of the captured CO2 using electrified and modular processes that forgo the thermal- or pressure-swing regeneration steps to concentrate CO2, eliminating the need to compress, transport, or store the gas. The conventional electrochemical conversion of CO2 with aqueous electrolytes presents limited CO2 solubility and high energy requirement to achieve industrially relevant products. Additionally, aqueous systems have competitive hydrogen evolution. In the past decade, there has been significant progress toward the design of ILs and DESs, and their composites to separate CO2 from dilute streams. In parallel, but not necessarily in synergy, there have been studies focused on a few select ILs and DESs for electrochemical reduction of CO2, often diluting them with aqueous or non-aqueous solvents. The resulting electrode-electrolyte interfaces present a complex speciation for RCC. In this review, we describe how the ILs and DESs are tuned for RCC and specifically address the CO2 chemisorption and electroreduction mechanisms. Critical bulk and interfacial properties of ILs and DESs are discussed in the context of RCC, and the potential of these electrolytes are presented through a techno-economic evaluation.
Collapse
Affiliation(s)
- Saudagar Dongare
- Chemical and Biomolecular Engineering, Case Western Reserve University, Cleveland, OH, 44106, USA.
| | - Muhammad Zeeshan
- Chemical and Biomolecular Engineering, Case Western Reserve University, Cleveland, OH, 44106, USA.
| | - Ahmet Safa Aydogdu
- Department of Chemical and Biological Engineering, Koç University, Rumelifeneri Yolu, Sariyer, 34450 Istanbul, Turkey
- Koç University TÜPRAŞ Energy Center (KUTEM), Koç University, Rumelifeneri Yolu, Sariyer, 34450 Istanbul, Turkey
| | - Ruth Dikki
- Chemical and Biomolecular Engineering, Case Western Reserve University, Cleveland, OH, 44106, USA.
| | - Samira F Kurtoğlu-Öztulum
- Department of Chemical and Biological Engineering, Koç University, Rumelifeneri Yolu, Sariyer, 34450 Istanbul, Turkey
- Koç University TÜPRAŞ Energy Center (KUTEM), Koç University, Rumelifeneri Yolu, Sariyer, 34450 Istanbul, Turkey
- Department of Materials Science and Technology, Faculty of Science, Turkish-German University, Sahinkaya Cad., Beykoz, 34820 Istanbul, Turkey
| | - Oguz Kagan Coskun
- Chemical and Biomolecular Engineering, Case Western Reserve University, Cleveland, OH, 44106, USA.
| | - Miguel Muñoz
- Chemical and Biomolecular Engineering, Case Western Reserve University, Cleveland, OH, 44106, USA.
| | - Avishek Banerjee
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Manu Gautam
- Conn Center for Renewable Energy Research, University of Louisville, Louisville, KY 40292, USA
| | - R Dominic Ross
- Materials Science Division, Lawrence Livermore National Laboratory, Livermore, CA, 94550, USA
| | - Jared S Stanley
- Department of Chemistry, University of California, Irvine, Irvine, CA 92697, USA
| | - Rowan S Brower
- Department of Chemistry, University of California, Davis, Davis, CA 95616, USA
| | - Baleeswaraiah Muchharla
- Department of Mathematics, Computer Science, & Engineering Technology, Elizabeth City State University, 1704 Weeksville Road, Elizabeth City, NC 27909, USA
| | - Robert L Sacci
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA
| | - Jesús M Velázquez
- Department of Chemistry, University of California, Davis, Davis, CA 95616, USA
| | - Bijandra Kumar
- Department of Mathematics, Computer Science, & Engineering Technology, Elizabeth City State University, 1704 Weeksville Road, Elizabeth City, NC 27909, USA
| | - Jenny Y Yang
- Department of Chemistry, University of California, Irvine, Irvine, CA 92697, USA
| | - Christopher Hahn
- Materials Science Division, Lawrence Livermore National Laboratory, Livermore, CA, 94550, USA
| | - Seda Keskin
- Department of Chemical and Biological Engineering, Koç University, Rumelifeneri Yolu, Sariyer, 34450 Istanbul, Turkey
- Koç University TÜPRAŞ Energy Center (KUTEM), Koç University, Rumelifeneri Yolu, Sariyer, 34450 Istanbul, Turkey
| | - Carlos G Morales-Guio
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Alper Uzun
- Department of Chemical and Biological Engineering, Koç University, Rumelifeneri Yolu, Sariyer, 34450 Istanbul, Turkey
- Koç University TÜPRAŞ Energy Center (KUTEM), Koç University, Rumelifeneri Yolu, Sariyer, 34450 Istanbul, Turkey
- Koç University Surface Science and Technology Center (KUYTAM), Koç University, Rumelifeneri Yolu, Sariyer, 34450 Istanbul, Turkey
| | - Joshua M Spurgeon
- Conn Center for Renewable Energy Research, University of Louisville, Louisville, KY 40292, USA
| | - Burcu Gurkan
- Chemical and Biomolecular Engineering, Case Western Reserve University, Cleveland, OH, 44106, USA.
| |
Collapse
|
9
|
Lin HH, Liang HI, Luo SC. Modulating Surface Cation Concentration via Tuning the Molecular Structures of Ethylene Glycol-Functionalized PEDOT for Improved Alkaline Hydrogen Evolution Reaction. JACS AU 2024; 4:3070-3083. [PMID: 39211622 PMCID: PMC11350742 DOI: 10.1021/jacsau.4c00409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Revised: 07/06/2024] [Accepted: 07/09/2024] [Indexed: 09/04/2024]
Abstract
The sluggish catalytic kinetics of nonprecious metal-based electrocatalysts often hinder them from achieving efficient hydrogen evolution reactions (HERs). Poly(3,4-ethylenedioxythiophene) (PEDOT) and its derivatives have been promising materials for various electrochemical applications. Nevertheless, previous studies have demonstrated that PEDOT coatings can be detrimental to HER performance. In this study, we investigated the alkaline HER efficiency of nickel foam coated with three types of ethylene glycol (EG)-functionalized EDOT. Specifically, EDOT derivatives bearing hydroxyl (-OH) and methoxy (-OCH3) end groups on the EG side chain and molecules containing two EDOT units are interconnected via EG moieties. EG groups are selected due to their strong interaction with alkali metal cations. Intriguingly, improved HER performance is observed on all electrodes coated with EG-functionalized EDOTs. Electrochemical impedance spectroscopy, electrochemical quartz crystal microbalance with dissipation, and XPS analysis are employed to explore the origin of enhanced HER efficiency. The results suggest the EG moieties can induce locally concentrated ions near the electrode surface and facilitate water dissociation through noncovalent interactions. The influence of EG chain length is systematically investigated by synthesizing molecules with di-EG, tetra-EG, and hexa-EG functionalities. This study highlights the importance of molecular design in modifying electrode surface properties to promote alkaline HER.
Collapse
Affiliation(s)
- Hsun-Hao Lin
- Department of Materials Science
and Engineering, National Taiwan University, Taipei 10617, Taiwan
| | - Hsuan-I Liang
- Department of Materials Science
and Engineering, National Taiwan University, Taipei 10617, Taiwan
| | - Shyh-Chyang Luo
- Department of Materials Science
and Engineering, National Taiwan University, Taipei 10617, Taiwan
| |
Collapse
|
10
|
Chen Y, Li Q, Lin Y, Liu J, Pan J, Hu J, Xu X. Boosting oxygen evolution reaction by FeNi hydroxide-organic framework electrocatalyst toward alkaline water electrolyzer. Nat Commun 2024; 15:7278. [PMID: 39179616 PMCID: PMC11344037 DOI: 10.1038/s41467-024-51521-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Accepted: 08/09/2024] [Indexed: 08/26/2024] Open
Abstract
The oxygen evolution reaction plays a vital role in modern energy conversion and storage, and developing cost-efficient oxygen evolution reaction catalysts with industrially relevant activity and durability is highly desired but still challenging. Here, we report an efficient and durable FeNi hydroxide organic framework nanosheet array catalyst that competently affords long-term oxygen evolution reaction at industrial-grade current densities in alkaline electrolyte. The desirable high-intensity performance is attributed to three aspects as follows. First, two-dimensional nanosheet porous arrays with maximum specific surface facilitate mass/charge transfer to accommodate high-current-density catalysis. Second, in situ derived FeNi hydroxide motifs offer bimetallic synergistic catalysis centers with high intrinsic activity. Third, carboxyl ligands alleviate metal oxidation favorable for charge tolerability against peroxidation dissolution under strong polarization. As a result, this catalyst requires an overpotential of only 280 mV to deliver high current density up to 1 A/cm2 with long durability over 1000 h. Moreover, an alkaline water electrolyzer with this catalyst alternative demonstrates an increased economic effectiveness compared to commercial levels at present.
Collapse
Affiliation(s)
- Yuzhen Chen
- School of Physics Science & Technology, and Chemistry Interdisciplinary Research Center, Yangzhou University, Yangzhou, China
| | - Qiuhong Li
- School of Physics Science & Technology, and Chemistry Interdisciplinary Research Center, Yangzhou University, Yangzhou, China
| | - Yuxing Lin
- Department of Physics, Xiamen University, Xiamen, China
| | - Jiao Liu
- School of Physics Science & Technology, and Chemistry Interdisciplinary Research Center, Yangzhou University, Yangzhou, China
| | - Jing Pan
- School of Physics Science & Technology, and Chemistry Interdisciplinary Research Center, Yangzhou University, Yangzhou, China
| | - Jingguo Hu
- School of Physics Science & Technology, and Chemistry Interdisciplinary Research Center, Yangzhou University, Yangzhou, China
| | - Xiaoyong Xu
- School of Physics Science & Technology, and Chemistry Interdisciplinary Research Center, Yangzhou University, Yangzhou, China.
| |
Collapse
|
11
|
Wang R, Du Y, Yan Y, Yan S, Zou Z. Dopamine-Carbonized Coating PtCo Catalyst with Enhanced Durability toward the Oxygen Reduction Reaction. J Phys Chem Lett 2024; 15:8459-8466. [PMID: 39121509 DOI: 10.1021/acs.jpclett.4c01927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/11/2024]
Abstract
Stability is the main challenge for the application of PtCo catalysts because Co tends to leach during the electrochemical reaction. Herein, we immerse and adsorb dopamine to densely coat Pt0.8Co0.2 particles and subsequently thermally carbonize the coating into few-layer nitrogen-doped graphene to produce Pt0.8Co0.2@NC. This coating effectively hinders direct contact between Pt0.8Co0.2 particles and the electrolyte, thereby enhancing the stability of the catalyst by preventing Ostwald ripening and suppressing competitive adsorption of toxic species, while also bolstering its antipoisoning ability. Experimental results indicate that the thin coating does not compromise the oxygen reduction reaction activity of the catalyst, showcasing a half-wave potential of 0.81 V in alkaline electrolytes. Spectroscopic results suggest that a strong bonding interaction between Pt and the pyridinic N of N-doped graphene contributes to the generation of a dense coating. The coating layer does not affect the four-electron reaction mechanism of the Pt0.8Co0.2 alloy, and the coordinatively unsaturated carbon atoms on Pt0.8Co0.2@NC serve as active oxygen reduction reaction centers.
Collapse
Affiliation(s)
- Ran Wang
- Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Nanjing University, No. 22 Hankou Road, Nanjing, Jiangsu 210093, P. R. China
| | - Yu Du
- Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Nanjing University, No. 22 Hankou Road, Nanjing, Jiangsu 210093, P. R. China
| | - Yuandong Yan
- Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Nanjing University, No. 22 Hankou Road, Nanjing, Jiangsu 210093, P. R. China
| | - Shicheng Yan
- Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Nanjing University, No. 22 Hankou Road, Nanjing, Jiangsu 210093, P. R. China
- Jiangsu Key Laboratory for Nano Technology, Nanjing University, No. 22 Hankou Road, Nanjing, Jiangsu 210093, P. R. China
| | - Zhigang Zou
- Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructures, College of Engineering and Applied Sciences, Nanjing University, No. 22 Hankou Road, Nanjing, Jiangsu 210093, P. R. China
- Jiangsu Key Laboratory for Nano Technology, Nanjing University, No. 22 Hankou Road, Nanjing, Jiangsu 210093, P. R. China
| |
Collapse
|
12
|
Memon K, Memon R, Ibupoto ZH, Memon GA, Haleem H, Sirajuddin, Memon AA, Qureshi A, Niazi JH, Nadeem A, Attia SM. AuAgCu trimetallic nanoparticles based alloy: an advanced electrocatalyst for hydrogen evolution reaction in alkaline media. RSC Adv 2024; 14:27132-27140. [PMID: 39193290 PMCID: PMC11348854 DOI: 10.1039/d4ra05826g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2024] [Accepted: 08/13/2024] [Indexed: 08/29/2024] Open
Abstract
Hydrogen production via cost-effective electrochemical water splitting is one of the most promising approaches to confront the energy crisis and to obtain clean fuels with high energy density. To address this concern, herein, we developed a simple one-step synthesis method for creating an AuAgCu trimetallic alloy using aspirin as a capping agent. This alloy shows potential for efficient electrocatalyst for hydrogen evolution reaction. The trimetallic nanoparticles based alloy exhibit an equiaxed grain-like morphology and a face-centred cubic phase. In HER experiments using a 1 M KOH electrolyte, the AuAgCu alloy shows nearly negligible overpotential compared to mono- and bimetallic catalysts, and the Tafel slope was 32.7 mV dec-1, which is the lowest ever achieved for alloy-based electrocatalysts and extremely close to a commercially available Pt/C with high stability for 21 days and no decrease in current density in alkaline media. Besides, with excellent HER activity and stability, the trimetallic AuAgCu-modified electrode possessed significant durability for over 1000 cycles in the selected range of potential from 0.5 to 0.8 V at different scan rates from 1 to 100 mV s-1. This simple, cost-effective and environmentally friendly methodology can pave the way for the exploitation of mixed metal alloy-based electrocatalysts not only for water splitting but also for other applications, such as fuel cells, lithium-ion batteries and supercapacitors.
Collapse
Affiliation(s)
- Kanwal Memon
- National Centre of Excellence in Analytical Chemistry, University of Sindh Jamshoro 76080 Pakistan
| | - Roomia Memon
- National Centre of Excellence in Analytical Chemistry, University of Sindh Jamshoro 76080 Pakistan
- Sabanci University, SUNUM Nanotechnology Research and Application Center Orta Mah. Tuzla 34956 Istanbul Turkey
| | | | - Ghufran Ahmed Memon
- Department of Urology, Liaquat University of Medical & Health Sciences Jamshoro Pakistan
| | - Halar Haleem
- DITEN Department, University of Genoa 16145 Italy
| | - Sirajuddin
- HEJ Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi 75270 Pakistan
| | - Ayaz Ali Memon
- National Centre of Excellence in Analytical Chemistry, University of Sindh Jamshoro 76080 Pakistan
| | - Anjum Qureshi
- Sabanci University, SUNUM Nanotechnology Research and Application Center Orta Mah. Tuzla 34956 Istanbul Turkey
| | - Javed H Niazi
- Sabanci University, SUNUM Nanotechnology Research and Application Center Orta Mah. Tuzla 34956 Istanbul Turkey
| | - Ahmed Nadeem
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University Riyadh 11451 Saudi Arabia
| | - Sabry M Attia
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University Riyadh 11451 Saudi Arabia
| |
Collapse
|
13
|
Ma G, Jiang N, Zhang Y, Song D, Qiao B, Xu Z, Zhao S, Liang Z. Buffering Donor Shuttles in Proton-Coupled Electron Transfer Kinetics for Electrochemical Hydrogenation of Hydroxyacetone to Propylene Glycol. J Am Chem Soc 2024; 146:23194-23204. [PMID: 39115467 DOI: 10.1021/jacs.4c05446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/22/2024]
Abstract
Electrochemical hydrogenation reactions demand rapid proton-coupled electron transfer at the electrode surface, the kinetics of which depend closely on pH. Buffer electrolytes are extensively employed to regulate pH over a wide range. However, the specific role of buffer species should be taken into account when interpreting the intrinsic pH dependence, which is easily overlooked in the current research. Herein, we report the electrochemical hydrogenation of hydroxyacetone, derived from glycerol feedstock, to propylene glycol with a faradaic efficiency of 56 ± 5% on a polycrystalline Cu electrode. The reaction activities are comparable in citrate, phosphate, and borate buffer electrolytes, encompassing different buffer identities and pH. The electrokinetic profile reveals that citrate is a site-blocking adsorbate on the Cu surface, thereby decreasing buffer concentration and increasing pH will enhance the reaction rate; phosphate is an explicit proton donor, which promotes the interfacial rate by increasing buffer concentration and decreasing pH, while borate is an innocent buffer, which can be used to investigate the intrinsic pH effect. Combined with in situ SEIRAS, we demonstrate that water is the primary proton source in citrate and borate electrolytes, reiterating the rationality of the proposed mechanism based on the microkinetic modeling. Our results emphasize the intrinsic complexity of the buffer system on the kinetic activity for electrocatalysis. It calls for special care when we diagnose the mechanistic pathway in buffer electrolytes convoluted by different buffer identities and pH.
Collapse
Affiliation(s)
- Guoquan Ma
- School of Physical Science and Engineering, Beijing Jiaotong University, Beijing 100044, P. R. China
| | - Na Jiang
- School of Physical Science and Engineering, Beijing Jiaotong University, Beijing 100044, P. R. China
| | - Yu Zhang
- School of Physical Science and Engineering, Beijing Jiaotong University, Beijing 100044, P. R. China
| | - Dandan Song
- School of Physical Science and Engineering, Beijing Jiaotong University, Beijing 100044, P. R. China
| | - Bo Qiao
- School of Physical Science and Engineering, Beijing Jiaotong University, Beijing 100044, P. R. China
| | - Zheng Xu
- School of Physical Science and Engineering, Beijing Jiaotong University, Beijing 100044, P. R. China
| | - Suling Zhao
- School of Physical Science and Engineering, Beijing Jiaotong University, Beijing 100044, P. R. China
| | - Zhiqin Liang
- School of Physical Science and Engineering, Beijing Jiaotong University, Beijing 100044, P. R. China
- Tangshan Research Institute of Beijing Jiaotong University, Xinhua Xi Street 46, Tangshan, Hebei 063000, P. R. China
| |
Collapse
|
14
|
Flores-Lasluisa JX, Carré B, Caucheteux J, Compère P, Léonard AF, Job N. Development of In Situ Methods for Preparing La-Mn-Co-Based Compounds over Carbon Xerogel for Oxygen Reduction Reaction in an Alkaline Medium. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:1362. [PMID: 39195400 DOI: 10.3390/nano14161362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2024] [Revised: 08/14/2024] [Accepted: 08/17/2024] [Indexed: 08/29/2024]
Abstract
Metal oxides containing La, Mn, and Co cations can catalyze oxygen reduction reactions (ORRs) in electrochemical processes. However, these materials require carbon support and optimal interactions between both compounds to be active. In this work, two approaches to prepare composites of La-Mn-Co-based compounds over carbon xerogel were developed. Using sol-gel methods, either the metal-based material was deposited on the existing carbon xerogel or vice versa. The metal oxide selected was the LaMn0.7Co0.3O3 perovskite, which has good catalytic behavior and selectivity towards direct ORRs. All the as-prepared composites were tested for ORRs in alkaline liquid electrolytes and characterized by diverse physicochemical techniques such as XRD, XPS, SEM, or N2 adsorption. Although the perovskite structure either decomposed or failed to form using those in situ methods, the materials exhibited great catalytic activity, which can be ascribed to the strengthening of the interactions between oxides and the carbon support via C-O-M covalent bonds and to the formation of new active sites such as the MnO/Co heterointerfaces. Moreover, Co-Nx-C species are formed during the synthesis of the metal compounds over the carbon xerogel. These species possess a strong catalytic activity towards ORR. Therefore, the composites formed by synthesizing metal compounds over the carbon xerogel exhibit the best performance in the ORR, which can be ascribed to the presence of the MnO/Co heterointerfaces and Co-Nx-C species and the strong interactions between both compounds. Moreover, the small nanoparticle size leads to a higher number of active sites available for the reaction.
Collapse
Affiliation(s)
- Jhony Xavier Flores-Lasluisa
- Department of Chemical Engineering-NCE (Nanomaterials, Catalysis, Electrochemistry), University of Liège, B6a, Allée du Six Août 13, 4000 Liège, Belgium
| | - Bryan Carré
- Department of Chemical Engineering-NCE (Nanomaterials, Catalysis, Electrochemistry), University of Liège, B6a, Allée du Six Août 13, 4000 Liège, Belgium
| | - Joachim Caucheteux
- Department of Chemical Engineering-NCE (Nanomaterials, Catalysis, Electrochemistry), University of Liège, B6a, Allée du Six Août 13, 4000 Liège, Belgium
| | - Philippe Compère
- Center for Applied Research and Education in Microscopy (CAREM), Chemistry Institute, University of Liège, B6c, Allée du Six Août 11, 4000 Liège, Belgium
- Interfaculty Research Center on Biomaterials (CEIB), Chemistry Institute, University of Liège, B6c, Allée du Six Août 11, 4000 Liège, Belgium
| | - Alexandre F Léonard
- Department of Chemical Engineering-CARPOR, University of Liège, B6a, Allée du Six Août 13, 4000 Liège, Belgium
| | - Nathalie Job
- Department of Chemical Engineering-NCE (Nanomaterials, Catalysis, Electrochemistry), University of Liège, B6a, Allée du Six Août 13, 4000 Liège, Belgium
| |
Collapse
|
15
|
Song D, Roh J, Choi J, Lee H, Koh G, Kwon Y, Kim H, Lee HM, Kim M, Cho E. Heterogeneous Structure of Ni-Mo Nanoalloys Decorated on MoO x for an Efficient Hydrogen Evolution Reaction Using Hydrogen Spillover. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2403752. [PMID: 39159050 DOI: 10.1002/advs.202403752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Revised: 07/17/2024] [Indexed: 08/21/2024]
Abstract
Herein, a heterogeneous structure of Ni-Mo catalyst comprising Ni4Mo nanoalloys decorated on a MoOx matrix via electrodeposition is introduced. This catalyst exhibits remarkable hydrogen evolution reaction (HER) activity across a range of pH conditions. The heterogeneous Ni-Mo catalyst showed low overpotentials only of 24 and 86, 21 and 60, and 37 and 168 mV to produce a current density of 10 and 100 mA cm-2 (η10 and η100) in alkaline, acidic, and neutral media, respectively, which represents one of the most active catalysts for the HER. The enhanced activity is attributed to the hydrogen spillover effect, where hydrogen atoms migrate between the Ni4Mo alloys and the MoOx matrix, forming hydrogen molybdenum bronze as additional active sites. Additionally, the Ni4Mo facilitated the water dissociation process, which helps the Volmer step in the alkaline/neutral HER. Through electrochemical analysis, in situ Raman spectroscopy, and density functional theory calculations, the fast HER mechanism is elucidated.
Collapse
Affiliation(s)
- DongHoon Song
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Jeonghan Roh
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Jungwoo Choi
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Hyein Lee
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Gyungmo Koh
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - YongKeun Kwon
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - HyoWon Kim
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Hyuck Mo Lee
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - MinJoong Kim
- Hydrogen Research Department, Korea Institute of Energy Research (KIER), 152 Gajeong-ro, Yuseong-gu, Daejeon, 34129, Republic of Korea
- Energy Engineering, University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon, 34113, Republic of Korea
| | - EunAe Cho
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| |
Collapse
|
16
|
Jones TE, Teschner D, Piccinin S. Toward Realistic Models of the Electrocatalytic Oxygen Evolution Reaction. Chem Rev 2024; 124:9136-9223. [PMID: 39038270 DOI: 10.1021/acs.chemrev.4c00171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/24/2024]
Abstract
The electrocatalytic oxygen evolution reaction (OER) supplies the protons and electrons needed to transform renewable electricity into chemicals and fuels. However, the OER is kinetically sluggish; it operates at significant rates only when the applied potential far exceeds the reversible voltage. The origin of this overpotential is hidden in a complex mechanism involving multiple electron transfers and chemical bond making/breaking steps. Our desire to improve catalytic performance has then made mechanistic studies of the OER an area of major scientific inquiry, though the complexity of the reaction has made understanding difficult. While historically, mechanistic studies have relied solely on experiment and phenomenological models, over the past twenty years ab initio simulation has been playing an increasingly important role in developing our understanding of the electrocatalytic OER and its reaction mechanisms. In this Review we cover advances in our mechanistic understanding of the OER, organized by increasing complexity in the way through which the OER is modeled. We begin with phenomenological models built using experimental data before reviewing early efforts to incorporate ab initio methods into mechanistic studies. We go on to cover how the assumptions in these early ab initio simulations─no electric field, electrolyte, or explicit kinetics─have been relaxed. Through comparison with experimental literature, we explore the veracity of these different assumptions. We summarize by discussing the most critical open challenges in developing models to understand the mechanisms of the OER.
Collapse
Affiliation(s)
- Travis E Jones
- Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
- Department of Inorganic Chemistry, Fritz-Haber-Institute of the Max-Planck-Society, Berlin 14195, Germany
| | - Detre Teschner
- Department of Inorganic Chemistry, Fritz-Haber-Institute of the Max-Planck-Society, Berlin 14195, Germany
- Department of Heterogeneous Reactions, Max-Planck-Institute for Chemical Energy Conversion, Mülheim an der Ruhr 45470, Germany
| | - Simone Piccinin
- Consiglio Nazionale delle Ricerche, Istituto Officina dei Materiali, Trieste 34136, Italy
| |
Collapse
|
17
|
Santhosh Kumar R, Sayfiddinov D, Tamilarasi S, Yoo DJ. A seed-like structured Mo@ZrS 2 catalyst on graphene nanosheets for boosting the performance of rechargeable Zn-air batteries. NANOSCALE 2024; 16:14861-14870. [PMID: 39036865 DOI: 10.1039/d4nr01191k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/23/2024]
Abstract
Novel composite materials are being studied by researchers for energy storage and renewable energy applications. Here, a seed-like Mo-doped ZrS2 catalyst was developed on a reduced graphene oxide (rGO) surface by an annealing and hydrothermal method. Using photoelectron spectroscopy, scanning microscopy, and X-ray diffraction analyses, the structure of Mo@ZrS2/rGO and the impact of heteroatoms are demonstrated, providing insight into the catalyst. Furthermore, it is demonstrated that Mo@ZrS2/rGO has been utilized as an efficient energy storage electrocatalyst by offering a very low half-wave potential of 0.80 V for the oxygen reduction reaction in an alkaline solution. Furthermore, Zn-air batteries with a high-power density of 128.6 mW cm-2 and exceptional cycling stability are demonstrated by the developed array electrocatalyst. Ultimately, the research findings suggest novel perspectives on the structure of ZrS2 nanoseeds created by Mo surface doping, promote the usage of Zn-air batteries in practical scenarios, and offer a fascinating idea for creating a redox electrocatalyst.
Collapse
Affiliation(s)
- Ramasamy Santhosh Kumar
- Department of Energy Storage/Conversion Engineering of Graduate School (BK21 FOUR), Hydrogen and Fuel Cell Research Center, Jeonbuk National University, Jeonju, Jeollabuk-do, 54896 Republic of Korea.
| | - Dilmurod Sayfiddinov
- Department of Energy Storage/Conversion Engineering of Graduate School (BK21 FOUR), Hydrogen and Fuel Cell Research Center, Jeonbuk National University, Jeonju, Jeollabuk-do, 54896 Republic of Korea.
| | - S Tamilarasi
- Department of Energy Storage/Conversion Engineering of Graduate School (BK21 FOUR), Hydrogen and Fuel Cell Research Center, Jeonbuk National University, Jeonju, Jeollabuk-do, 54896 Republic of Korea.
| | - Dong Jin Yoo
- Department of Energy Storage/Conversion Engineering of Graduate School (BK21 FOUR), Hydrogen and Fuel Cell Research Center, Jeonbuk National University, Jeonju, Jeollabuk-do, 54896 Republic of Korea.
- Department of Life Science, Jeonbuk National University, Jeonju-si, Jeollabuk-do, 54896 Republic of Korea
| |
Collapse
|
18
|
Khdary NH, El-Gohary ARM, Galal A, Alhassan AM, Alzahrain SD. Cu-P@silica-CNT-based catalyst for effective electrolytic water splitting in an alkaline medium with hydrazine assistance. RSC Adv 2024; 14:25830-25843. [PMID: 39156752 PMCID: PMC11327855 DOI: 10.1039/d4ra03998j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2024] [Accepted: 07/18/2024] [Indexed: 08/20/2024] Open
Abstract
In this study, we prepared a potential catalyst as an electrode modifier for electrolytic water splitting. In the preparation step, the amine was decorated with copper-phosphorus. It was immobilized over the silica surface, and the surface was engineered using N-(3-(trimethoxysilyl) propyl)ethylenediamine for the synthesis of the catalysts (AS). The morphological and structural aspects of the catalyst (AFS-Cu-P) were determined using FE-SEM/EDAX, FTIR, elemental analysis, BET, TGA, and XPS. The catalyst's efficacy for the oxygen evolution reaction (OER) was assessed in an alkaline medium with and without hydrazine. The hydrazine oxidation reaction enhanced the sluggish OER and facilitated water splitting. Detailed electrochemical measurements confirmed an increase in the kinetics of the process and a reduction in the activation energy needed to complete the process. The Tafel slopes, charge transfer coefficients, exchange-specific current densities, apparent rate constants, and diffusion coefficients are provided along with their respective values. The results showed that the presence of Cu and CNT is crucial in the conversion process.
Collapse
Affiliation(s)
- Nezar H Khdary
- King Abdulaziz City for Science and Technology Riyadh 11442 Kingdom of Saudi Arabia
| | | | - Ahmed Galal
- Cairo University, Faculty of Science, Chemistry Department Giza 12613 Egypt
| | - Ahmed M Alhassan
- King Abdulaziz City for Science and Technology Riyadh 11442 Kingdom of Saudi Arabia
| | - Sami D Alzahrain
- King Abdulaziz City for Science and Technology Riyadh 11442 Kingdom of Saudi Arabia
| |
Collapse
|
19
|
Zhu X, Huang J, Eikerling M. Hierarchical Modeling of the Local Reaction Environment in Electrocatalysis. Acc Chem Res 2024; 57:2080-2092. [PMID: 39031075 PMCID: PMC11308366 DOI: 10.1021/acs.accounts.4c00234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Revised: 07/04/2024] [Accepted: 07/05/2024] [Indexed: 07/22/2024]
Abstract
ConspectusElectrocatalytic reactions, such as oxygen reduction/evolution reactions and CO2 reduction reaction that are pivotal for the energy transition, are multistep processes that occur in a nanoscale electric double layer (EDL) at a solid-liquid interface. Conventional analyses based on the Sabatier principle, using binding energies or effective electronic structure properties such as the d-band center as descriptors, are able to grasp overall trends in catalytic activity in specific groups of catalysts. However, thermodynamic approaches often fail to account for electrolyte effects that arise in the EDL, including pH, cation, and anion effects. These effects exert strong impacts on electrocatalytic reactions. There is growing consensus that the local reaction environment (LRE) prevailing in the EDL is the key to deciphering these complex and hitherto perplexing electrolyte effects. Increasing attention is thus paid to designing electrolyte properties, positioning the LRE at center stage. To this end, unraveling the LRE is becoming essential for designing electrocatalysts with specifically tailored properties, which could enable much needed breakthroughs in electrochemical energy science.Theory and modeling are getting more and more important and powerful in addressing this multifaceted problem that involves physical phenomena at different scales and interacting in a multidimensional parametric space. Theoretical models developed for this purpose should treat intrinsic multistep kinetics of electrocatalytic reactions, EDL effects from subnm scale to the scale of 10 nm, and mass transport phenomena bridging scales from <0.1 to 100 μm. Given the diverse physical phenomena and scales involved, it is evident that the challenge at hand surpasses the capabilities of any single theoretical or computational approach.In this Account, we present a hierarchical theoretical framework to address the above challenge. It seamlessly integrates several modules: (i) microkinetic modeling that accounts for various reaction pathways; (ii) an LRE model that describes the interfacial region extending from the nanometric EDL continuously to the solution bulk; (iii) first-principles calculations that provide parameters, e.g., adsorption energies, activation barriers and EDL parameters. The microkinetic model considers all elementary steps without designating an a priori rate-determining step. The kinetics of these elementary steps are expressed in terms of local concentrations, potential and electric field that are codetermined by EDL charging and mass transport in the LRE model. Vital insights on electrode kinetic phenomena, i.e., potential-dependent Tafel slopes, cation effects, and pH effects, obtained from this hierarchical framework are then reviewed. Finally, an outlook on further improvement of the model framework is presented, in view of recent developments in first-principles based simulation of electrocatalysis, observations of dynamic reconstruction of catalysts, and machine-learning assisted computational simulations.
Collapse
Affiliation(s)
- Xinwei Zhu
- Theory
and Computation of Energy Materials (IEK-13), Institute of Energy
and Climate Research, Forschungszentrum
Jülich GmbH, 52425 Jülich, Germany
- Chair
of Theory and Computation of Energy Materials, Faculty of Georesources
and Materials Engineering, RWTH Aachen University, 52062 Aachen, Germany
| | - Jun Huang
- Theory
and Computation of Energy Materials (IEK-13), Institute of Energy
and Climate Research, Forschungszentrum
Jülich GmbH, 52425 Jülich, Germany
- Theory
of Electrocatalytic Interfaces, Faculty of Georesources and Materials
Engineering, RWTH Aachen University, 52062 Aachen, Germany
| | - Michael Eikerling
- Theory
and Computation of Energy Materials (IEK-13), Institute of Energy
and Climate Research, Forschungszentrum
Jülich GmbH, 52425 Jülich, Germany
- Chair
of Theory and Computation of Energy Materials, Faculty of Georesources
and Materials Engineering, RWTH Aachen University, 52062 Aachen, Germany
| |
Collapse
|
20
|
Lin S, Mandavkar R, Habib MA, Dristy SA, Joni MH, Jeong JH, Lee J. Fabrication of Ru-doped CuMnBP micro cluster electrocatalyst with high efficiency and stability for electrochemical water splitting application at the industrial-level current density. J Colloid Interface Sci 2024; 677:587-598. [PMID: 39116558 DOI: 10.1016/j.jcis.2024.08.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2024] [Revised: 07/24/2024] [Accepted: 08/02/2024] [Indexed: 08/10/2024]
Abstract
Electrochemical water splitting has been considered as a key pathway to generate environmentally friendly green hydrogen energy and it is essential to design highly efficient electrocatalysts at affordable cost to facilitate the redox reactions of hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). In this work, a novel micro-clustered Ru/CuMnBP electrocatalyst is introduced, prepared via hydrothermal deposition and soaking-assisted Ru doping approaches on Ni foam substrate. Ru/CuMnBP micro-clusters exhibit relatively low HER/OER turnover overpotentials of 11 mV and 85 mV at 10 mA/cm2 in 1 M KOH. It also demonstrates a low 2-E turnover cell voltage of 1.53 V at 10 mA/cm2 for the overall water-splitting, which is comparable with the benchmark electrodes of Pt/C||RuO2. At a super high-current density of 2000 mA/cm2, the dual functional Ru/CuMnBP demonstrates an exceptionally low 2-E cell voltage of 3.13 V and also exhibits superior stability for over 10 h in 1 M KOH. Excellent electrochemical performances originate from the large electrochemical active surface area with the micro cluster morphology, high intrinsic activity of CuMnBP micro-clusters optimized through component ratio adjustment and the beneficial Ru doping effect, which enhances active site density, conductivity and stability. The usage of Ru in small quantities via the simple soaking doping approach significantly improves electrochemical reaction rates for both HER and OER, making Ru/CuMnBP micro-clusters promising candidates for advanced electrocatalytic applications.
Collapse
Affiliation(s)
- Shusen Lin
- Department of Electronic Engineering, College of Electronics and Information, Kwangwoon University, Nowon-gu Seoul, 01897, South Korea
| | - Rutuja Mandavkar
- Department of Electronic Engineering, College of Electronics and Information, Kwangwoon University, Nowon-gu Seoul, 01897, South Korea
| | - Md Ahasan Habib
- Department of Electronic Engineering, College of Electronics and Information, Kwangwoon University, Nowon-gu Seoul, 01897, South Korea
| | - Sumiya Akter Dristy
- Department of Electronic Engineering, College of Electronics and Information, Kwangwoon University, Nowon-gu Seoul, 01897, South Korea
| | - Mehedi Hasan Joni
- Department of Electronic Engineering, College of Electronics and Information, Kwangwoon University, Nowon-gu Seoul, 01897, South Korea
| | - Jae-Hun Jeong
- Department of Electronic Engineering, College of Electronics and Information, Kwangwoon University, Nowon-gu Seoul, 01897, South Korea.
| | - Jihoon Lee
- Department of Electronic Engineering, College of Electronics and Information, Kwangwoon University, Nowon-gu Seoul, 01897, South Korea.
| |
Collapse
|
21
|
Wang Y, Arandiyan H, Mofarah SS, Shen X, Bartlett SA, Koshy P, Sorrell CC, Sun H, Pozo-Gonzalo C, Dastafkan K, Britto S, Bhargava SK, Zhao C. Stacking Fault-Enriched MoNi 4/MoO 2 Enables High-Performance Hydrogen Evolution. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2402156. [PMID: 38869191 DOI: 10.1002/adma.202402156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Revised: 06/01/2024] [Indexed: 06/14/2024]
Abstract
Producing green hydrogen in a cost-competitive manner via water electrolysis will make the long-held dream of hydrogen economy a reality. Although platinum (Pt)-based catalysts show good performance toward hydrogen evolution reaction (HER), the high cost and scarce abundance challenge their economic viability and sustainability. Here, a non-Pt, high-performance electrocatalyst for HER achieved by engineering high fractions of stacking fault (SF) defects for MoNi4/MoO2 nanosheets (d-MoNi) through a combined chemical and thermal reduction strategy is shown. The d-MoNi catalyst offers ultralow overpotentials of 78 and 121 mV for HER at current densities of 500 and 1000 mA cm-2 in 1 M KOH, respectively. The defect-rich d-MoNi exhibits four times higher turnover frequency than the benchmark 20% Pt/C, together with its excellent durability (> 100 h), making it one of the best-performing non-Pt catalysts for HER. The experimental and theoretical results reveal that the abundant SFs in d-MoNi induce a compressive strain, decreasing the proton adsorption energy and promoting the associated combination of *H into hydrogen and molecular hydrogen desorption, enhancing the HER performance. This work provides a new synthetic route to engineer defective metal and metal alloy electrocatalysts for emerging electrochemical energy conversion and storage applications.
Collapse
Affiliation(s)
- Yuan Wang
- Department of Chemical Engineering, The University of Melbourne, Parkville, VIC, 3010, Australia
| | - Hamidreza Arandiyan
- Laboratory of Advanced Catalysis for Sustainability, School of Chemistry, University of Sydney, Sydney, NSW, 2006, Australia
- Centre for Applied Materials and Industrial Chemistry (CAMIC), School of Science, RMIT University, Melbourne, VIC, 3001, Australia
| | - Sajjad S Mofarah
- School of Materials Science and Engineering, UNSW Sydney, Sydney, NSW, 2052, Australia
| | - Xiangjian Shen
- Engineering Research Centre of Advanced Functional Material Manufacturing of Ministry of Education, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Stuart A Bartlett
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot, OX11 0DE, UK
| | - Pramod Koshy
- School of Materials Science and Engineering, UNSW Sydney, Sydney, NSW, 2052, Australia
| | - Charles C Sorrell
- School of Materials Science and Engineering, UNSW Sydney, Sydney, NSW, 2052, Australia
| | - Hongyu Sun
- School of Resources and Materials, Northeastern University at Qinhuangdao, Qinhuangdao, 066004, P. R. China
| | - Cristina Pozo-Gonzalo
- Institute for Frontier Materials, Deakin University, Melbourne, VIC, 3125, Australia
| | - Kamran Dastafkan
- School of Chemistry, The University of New South Wales, Sydney, NSW, 2052, Australia
| | - Sylvia Britto
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot, OX11 0DE, UK
| | - Suresh K Bhargava
- Centre for Applied Materials and Industrial Chemistry (CAMIC), School of Science, RMIT University, Melbourne, VIC, 3001, Australia
| | - Chuan Zhao
- School of Chemistry, The University of New South Wales, Sydney, NSW, 2052, Australia
| |
Collapse
|
22
|
Han SM, Park M, Kim J, Lee D. Boosting the Electroreduction of CO 2 to CO by Ligand Engineering of Gold Nanoclusters. Angew Chem Int Ed Engl 2024; 63:e202404387. [PMID: 38757232 DOI: 10.1002/anie.202404387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Revised: 05/16/2024] [Accepted: 05/16/2024] [Indexed: 05/18/2024]
Abstract
The electrochemical CO2 reduction reaction (CO2RR) has been widely studied as a promising means to convert anthropogenic CO2 into valuable chemicals and fuels. In this process, the alkali metal ions present in the electrolyte are known to significantly influence the CO2RR activity and selectivity. In this study, we report a strategy for preparing efficient electrocatalysts by introducing a cation-relaying ligand, namely 6-mercaptohexanoic acid (MHA), into atom-precise Au25 nanoclusters (NCs). The CO2RR activity of the synthesized Au25(MHA)18 NCs was compared with that of Au25(HT)18 NCs (HT=1-hexanethiolate). While both NCs selectively produced CO over H2, the CO2-to-CO conversion activity of the Au25(MHA)18 NCs was significantly higher than that of the Au25(HT)18 NCs when the catholyte pH was higher than the pKa of MHA, demonstrating the cation-relaying effect of the anionic terminal group. Mechanistic investigations into the CO2RR occurring on the Au25 NCs in the presence of different catholyte cations and concentrations revealed that the CO2-to-CO conversion activities of these Au25 NCs increased in the order Li+
Collapse
Affiliation(s)
- Sang Myeong Han
- Department of Chemistry, Yonsei University, Seoul, 03722, Republic of Korea
| | - Minyoung Park
- Department of Chemistry, Yonsei University, Seoul, 03722, Republic of Korea
| | - Jiyoung Kim
- Department of Chemistry, Yonsei University, Seoul, 03722, Republic of Korea
| | - Dongil Lee
- Department of Chemistry, Yonsei University, Seoul, 03722, Republic of Korea
| |
Collapse
|
23
|
Zeng JS, Padia V, Chen GY, Maalouf JH, Limaye AM, Liu AH, Yusov MA, Hunter IW, Manthiram K. Nonidealities in CO 2 Electroreduction Mechanisms Revealed by Automation-Assisted Kinetic Analysis. ACS CENTRAL SCIENCE 2024; 10:1348-1356. [PMID: 39071063 PMCID: PMC11273456 DOI: 10.1021/acscentsci.3c01295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 05/29/2024] [Accepted: 05/30/2024] [Indexed: 07/30/2024]
Abstract
In electrocatalysis, mechanistic analysis of reaction rate data often relies on the linearization of relatively simple rate equations; this is the basis for typical Tafel and reactant order dependence analyses. However, for more complex reaction phenomena, such as surface coverage effects or mixed control, these common linearization strategies will yield incomplete or uninterpretable results. Cohesive kinetic analysis, which is often used in thermocatalysis and involves quantitative model fitting for data collected over a wide range of reaction conditions, requires more data but also provides a more robust strategy for interrogating reaction mechanisms. In this work, we report a robotic system that improves the experimental workflow for collecting electrochemical rate data by automating sequential testing of up to 10 electrochemical cells, where each cell can have a different electrode, electrolyte, gas-phase reactant composition, and applied voltage. We used this system to investigate the mechanism of carbon dioxide electroreduction to carbon monoxide at several immobilized metal tetrapyrroles. Specifically, at cobalt phthalocyanine (CoPc), cobalt tetraphenylporphyrin (CoTPP), and iron phthalocyanine (FePc), we see signatures of complex reaction mechanisms, where observed bicarbonate and CO2 order dependences change with applied potential. We illustrate how phenomena such as electrolyte poisoning and potential-dependent degrees of rate control can explain the observed kinetic behaviors. Our mechanistic analysis suggests that CoPc and CoTPP share a similar reaction mechanism, akin to one previously proposed, whereas the mechanism for FePc likely involves a species later in the catalytic cycle as the most abundant reactive intermediate. Our study illustrates that complex reaction mechanisms that are not amenable to common Tafel and order dependence analyses may be quite prevalent across this class of immobilized metal tetrapyrrole electrocatalysts.
Collapse
Affiliation(s)
- Joy S. Zeng
- Department
of Chemical Engineering, Massachusetts Institute
of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Vineet Padia
- Department
of Mechanical Engineering, Massachusetts
Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Grace Y. Chen
- Division
of Chemistry and Chemical Engineering, California
Institute of Technology, Pasadena, California 91125, United States
| | - Joseph H. Maalouf
- Department
of Chemical Engineering, Massachusetts Institute
of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Aditya M. Limaye
- Department
of Chemical Engineering, Massachusetts Institute
of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Alexander H. Liu
- Department
of Chemical Engineering, Massachusetts Institute
of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Michael A. Yusov
- Division
of Chemistry and Chemical Engineering, California
Institute of Technology, Pasadena, California 91125, United States
| | - Ian W. Hunter
- Department
of Mechanical Engineering, Massachusetts
Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Karthish Manthiram
- Division
of Chemistry and Chemical Engineering, California
Institute of Technology, Pasadena, California 91125, United States
| |
Collapse
|
24
|
Levell Z, Le J, Yu S, Wang R, Ethirajan S, Rana R, Kulkarni A, Resasco J, Lu D, Cheng J, Liu Y. Emerging Atomistic Modeling Methods for Heterogeneous Electrocatalysis. Chem Rev 2024; 124:8620-8656. [PMID: 38990563 DOI: 10.1021/acs.chemrev.3c00735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/12/2024]
Abstract
Heterogeneous electrocatalysis lies at the center of various technologies that could help enable a sustainable future. However, its complexity makes it challenging to accurately and efficiently model at an atomic level. Here, we review emerging atomistic methods to simulate the electrocatalytic interface with special attention devoted to the components/effects that have been challenging to model, such as solvation, electrolyte ions, electrode potential, reaction kinetics, and pH. Additionally, we review relevant computational spectroscopy methods. Then, we showcase several examples of applying these methods to understand and design catalysts relevant to green hydrogen. We also offer experimental views on how to bridge the gap between theory and experiments. Finally, we provide some perspectives on opportunities to advance the field.
Collapse
Affiliation(s)
- Zachary Levell
- Texas Materials Institute and Department of Mechanical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Jiabo Le
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, 1219 Zhongguan West Road, Ningbo 315201, China
| | - Saerom Yu
- Texas Materials Institute and Department of Mechanical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Ruoyu Wang
- Texas Materials Institute and Department of Mechanical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Sudheesh Ethirajan
- Department of Chemical Engineering, University of California, Davis, California 95616, United States
| | - Rachita Rana
- Department of Chemical Engineering, University of California, Davis, California 95616, United States
| | - Ambarish Kulkarni
- Department of Chemical Engineering, University of California, Davis, California 95616, United States
| | - Joaquin Resasco
- Department of Chemical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Deyu Lu
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Jun Cheng
- State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
- Laboratory of AI for Electrochemistry (AI4EC), Tan Kah Kee Innovation Laboratory, Xiamen 361005, China
| | - Yuanyue Liu
- Texas Materials Institute and Department of Mechanical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
| |
Collapse
|
25
|
Fan J, Arrazolo LK, Du J, Xu H, Fang S, Liu Y, Wu Z, Kim JH, Wu X. Effects of Ionic Interferents on Electrocatalytic Nitrate Reduction: Mechanistic Insight. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:12823-12845. [PMID: 38954631 DOI: 10.1021/acs.est.4c03949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/04/2024]
Abstract
Nitrate, a prevalent water pollutant, poses substantial public health concerns and environmental risks. Electrochemical reduction of nitrate (eNO3RR) has emerged as an effective alternative to conventional biological treatments. While extensive lab work has focused on designing efficient electrocatalysts, implementation of eNO3RR in practical wastewater settings requires careful consideration of the effects of various constituents in real wastewater. In this critical review, we examine the interference of ionic species commonly encountered in electrocatalytic systems and universally present in wastewater, such as halogen ions, alkali metal cations, and other divalent/trivalent ions (Ca2+, Mg2+, HCO3-/CO32-, SO42-, and PO43-). Notably, we categorize and discuss the interfering mechanisms into four groups: (1) loss of active catalytic sites caused by competitive adsorption and precipitation, (2) electrostatic interactions in the electric double layer (EDL), including ion pairs and the shielding effect, (3) effects on the selectivity of N intermediates and final products (N2 or NH3), and (4) complications by the hydrogen evolution reaction (HER) and localized pH on the cathode surface. Finally, we summarize the competition among different mechanisms and propose future directions for a deeper mechanistic understanding of ionic impacts on eNO3RR.
Collapse
Affiliation(s)
- Jinling Fan
- Department of Environmental Engineering, Zhejiang University, Hangzhou, Zhejiang 310058, People's Republic of China
- Zhejiang Provincial Engineering Research Center of Industrial Boiler & Furnace Flue Gas Pollution Control, Hangzhou, Zhejiang 310058, People's Republic of China
| | - Leslie K Arrazolo
- Department of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06511, United States
| | - Jiaxin Du
- Department of Environmental Engineering, Zhejiang University, Hangzhou, Zhejiang 310058, People's Republic of China
- Zhejiang Provincial Engineering Research Center of Industrial Boiler & Furnace Flue Gas Pollution Control, Hangzhou, Zhejiang 310058, People's Republic of China
| | - Huimin Xu
- Department of Environmental Engineering, Zhejiang University, Hangzhou, Zhejiang 310058, People's Republic of China
- Zhejiang Provincial Engineering Research Center of Industrial Boiler & Furnace Flue Gas Pollution Control, Hangzhou, Zhejiang 310058, People's Republic of China
| | - Siyu Fang
- Department of Environmental Engineering, Zhejiang University, Hangzhou, Zhejiang 310058, People's Republic of China
- Zhejiang Provincial Engineering Research Center of Industrial Boiler & Furnace Flue Gas Pollution Control, Hangzhou, Zhejiang 310058, People's Republic of China
| | - Yue Liu
- Department of Environmental Engineering, Zhejiang University, Hangzhou, Zhejiang 310058, People's Republic of China
- Zhejiang Provincial Engineering Research Center of Industrial Boiler & Furnace Flue Gas Pollution Control, Hangzhou, Zhejiang 310058, People's Republic of China
| | - Zhongbiao Wu
- Department of Environmental Engineering, Zhejiang University, Hangzhou, Zhejiang 310058, People's Republic of China
- Zhejiang Provincial Engineering Research Center of Industrial Boiler & Furnace Flue Gas Pollution Control, Hangzhou, Zhejiang 310058, People's Republic of China
| | - Jae-Hong Kim
- Department of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06511, United States
| | - Xuanhao Wu
- Department of Environmental Engineering, Zhejiang University, Hangzhou, Zhejiang 310058, People's Republic of China
- Zhejiang Provincial Engineering Research Center of Industrial Boiler & Furnace Flue Gas Pollution Control, Hangzhou, Zhejiang 310058, People's Republic of China
| |
Collapse
|
26
|
Abedi M, Rezaee S, Shahrokhian S. Designing core-shell heterostructure arrays based on snowflake NiCoFe-LTH shelled over W 2N-WC nanowires as an advanced bi-functional electrocatalyst for boosting alkaline water/seawater electrolysis. J Colloid Interface Sci 2024; 666:307-321. [PMID: 38603874 DOI: 10.1016/j.jcis.2024.04.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Revised: 03/31/2024] [Accepted: 04/05/2024] [Indexed: 04/13/2024]
Abstract
The pursuit of efficient and sustainable hydrogen production through water splitting has led to intensive research in the field of electrocatalysis. However, the impediment posed by sluggish reaction kinetics has served as a significant barrier. This challenge has inspired the development of electrocatalysts characterized by high activity, abundance in earth's resources, and long-term stability. In addressing this obstacle, it is imperative to meticulously fine-tune the structure, morphology, and electronic state of electrocatalysts. By systematically manipulating these key parameters, the full potential of electrocatalysts can unleash, enhancing their catalytic activity and overall performance. Hence in this study, a novel heterostructure is designed, showcasing core-shell architectures achieved by covering W2N-WC nanowire arrays with tri-metallic Nickel-Cobalt-Iron layered triple hydroxide nanosheets on carbon felt support (NiCoFe-LTH/W2N-WC/CF). By integrating the different virtue such as binder free electrode design, synergistic effect between different components, core-shell structural advantages, high exposed active sites, high electrical conductivity and heterostructure design, NiCoFe-LTH/W2N-WC/CF demonstrates striking catalytic performances under alkaline conditions. The substantiation of all the mentioned advantages has been validated through electrochemical data in this study. According to these results NiCoFe-LTH/W2N-WC/CF achieves a current density of 10 mA cm-2 needs overpotential values of 101 mV for HER and 206 mV for OER, respectively. Moreover, as a bi-functional electrocatalyst for overall water splitting, a two-electrode device needs a voltage of 1.543 V and 1.569 V to reach a current density of 10 mA cm-2 for alkaline water and alkaline seawater electrolysis, respectively. Briefly, this research with attempting to combination of different factors try to present a promising stride towards advancing bi-functional catalytic activity with tailored architectures for practical green hydrogen production via electrochemical water splitting process.
Collapse
Affiliation(s)
- Mohsen Abedi
- Department of Chemistry, Sharif University of Technology, Tehran 11155-9516, Iran
| | - Sharifeh Rezaee
- Department of Chemistry, Sharif University of Technology, Tehran 11155-9516, Iran
| | - Saeed Shahrokhian
- Department of Chemistry, Sharif University of Technology, Tehran 11155-9516, Iran.
| |
Collapse
|
27
|
Jeong M, Park S, Kwon T, Kwon M, Yuk S, Kim S, Yeon C, Lee CW, Lee D. Interface Engineering via Ti 3C 2T x MXene Enabled Highly Efficient Bifunctional NiCoP Array Catalysts for Alkaline Water Splitting. ACS APPLIED MATERIALS & INTERFACES 2024; 16:34798-34808. [PMID: 38923889 DOI: 10.1021/acsami.4c00798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/28/2024]
Abstract
Developing a non-noble metal-based bifunctional electrocatalyst with high efficiency and stability for overall water splitting is desirable for renewable energy systems. We developed a novel method to fabricate a heterostructured electrocatalyst, comprising a NiCoP nanoneedle array grown on Ti3C2Tx MXene-coated Ni foam (NCP-MX/NF) using a dip-coating hydrothermal method, followed by phosphorization. Due to the abundance of active sites, enhanced electronic kinetics, and sufficient electrolyte accessibility resulting from the synergistic effects of NCP and MXene, NCP-MX/NF bifunctional alkaline catalysts afford superb electrocatalytic performance, with a low overpotential (72 mV at 10 mA cm-2 for HER and 303 mV at 50 mA cm-2 for OER), a low Tafel slope (49.2 mV dec-1 for HER and 69.5 mV dec-1 for OER), and long-term stability. Moreover, the overall water splitting performance of NCP-MX/NF, which requires potentials as low as 1.54 and 1.76 V at a current density of 10 and 50 mA cm-2, respectively, exceeded the performance of the Pt/C∥IrO2 couple in terms of overall water splitting. Density functional theory (DFT) calculations for the NCP/Ti3C2O2 interface model predicted the catalytic contribution to interfacial formation by analyzing the electronic redistribution at the interface. This contribution was also evaluated by calculating the adsorption energetics of the descriptor molecules (H2O and the H and OER intermediates).
Collapse
Affiliation(s)
- Minsik Jeong
- Department of Urban, Energy, and Environmental Engineering, Chungbuk National University, 1 Chungdae-ro, Seowon-gu, Cheongju, Chungbuk 28644, Republic of Korea
| | - Sanghyeon Park
- Energy AI & Computational Science Laboratory, Korea Institute of Energy Research, 152 Gajeong-ro, Yuseong-gu, Daejeon 34129, Republic of Korea
| | - Taehyun Kwon
- Department of Urban, Energy, and Environmental Engineering, Chungbuk National University, 1 Chungdae-ro, Seowon-gu, Cheongju, Chungbuk 28644, Republic of Korea
| | - Minsol Kwon
- Department of Urban, Energy, and Environmental Engineering, Chungbuk National University, 1 Chungdae-ro, Seowon-gu, Cheongju, Chungbuk 28644, Republic of Korea
| | - Seoyeon Yuk
- Department of Urban, Energy, and Environmental Engineering, Chungbuk National University, 1 Chungdae-ro, Seowon-gu, Cheongju, Chungbuk 28644, Republic of Korea
| | - Seulgi Kim
- Department of Urban, Energy, and Environmental Engineering, Chungbuk National University, 1 Chungdae-ro, Seowon-gu, Cheongju, Chungbuk 28644, Republic of Korea
| | - Changho Yeon
- Energy AI & Computational Science Laboratory, Korea Institute of Energy Research, 152 Gajeong-ro, Yuseong-gu, Daejeon 34129, Republic of Korea
| | - Chan-Woo Lee
- Energy AI & Computational Science Laboratory, Korea Institute of Energy Research, 152 Gajeong-ro, Yuseong-gu, Daejeon 34129, Republic of Korea
| | - Dongju Lee
- Department of Urban, Energy, and Environmental Engineering, Chungbuk National University, 1 Chungdae-ro, Seowon-gu, Cheongju, Chungbuk 28644, Republic of Korea
| |
Collapse
|
28
|
Gupta N, Segre C, Nickel C, Streb C, Gao D, Glusac KD. Catalytic Water Electrolysis by Co-Cu-W Mixed Metal Oxides: Insights from X-ray Absorption Spectroelectrochemistry. ACS APPLIED MATERIALS & INTERFACES 2024; 16:35793-35804. [PMID: 38949083 DOI: 10.1021/acsami.4c06365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/02/2024]
Abstract
Mixed metal oxides (MMOs) are a promising class of electrocatalysts for the oxygen evolution reaction (OER) and hydrogen evolution reaction (HER). Despite their importance for sustainable energy schemes, our understanding of relevant reaction pathways, catalytically active sites, and synergistic effects is rather limited. Here, we applied synchrotron-based X-ray absorption spectroscopy (XAS) to explore the evolution of the amorphous Co-Cu-W MMO electrocatalyst, shown previously to be an efficient bifunctional OER and HER catalyst for water splitting. Ex situ XAS measurements provided structural environments and the oxidation state of the metals involved, revealing Co2+ (octahedral), Cu+/2+ (tetrahedral/square-planar), and W6+ (octahedral) centers. Operando XAS investigations, including X-ray absorption near-edge structure (XANES) and extended X-ray absorption fine structure (EXAFS), elucidated the dynamic structural transformations of Co, Cu, and W metal centers during the OER and HER. The experimental results indicate that Co3+ and Cu0 are the active catalytic sites involved in the OER and HER, respectively, while Cu2+ and W6+ play crucial roles as structure stabilizers, suggesting strong synergistic interactions within the Co-Cu-W MMO system. These results, combined with the Tafel slope analysis, revealed that the bottleneck intermediate during the OER is Co3+ hydroperoxide, whose formation is accompanied by changes in the Cu-O bond lengths, pointing to a possible synergistic effect between Co and Cu ions. Our study reveals important structural effects taking place during MMO-driven OER/HER electrocatalysis and provides essential experimental insights into the complex catalytic mechanism of emerging noble-metal-free MMO electrocatalysts for full water splitting.
Collapse
Affiliation(s)
- Nikita Gupta
- Department of Chemistry, University of Illinois Chicago, Chicago, Illinois 60607, United States
- Chemical Sciences and Engineering, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Carlo Segre
- Department of Physics & Center for Synchrotron Radiation Research and Instrumentation, Illinois Institute of Technology, Chicago, Illinois 60616, United States
| | - Christean Nickel
- Department of Chemistry, Johannes Gutenberg University Mainz, Mainz 55128, Germany
| | - Carsten Streb
- Department of Chemistry, Johannes Gutenberg University Mainz, Mainz 55128, Germany
| | - Dandan Gao
- Department of Chemistry, Johannes Gutenberg University Mainz, Mainz 55128, Germany
| | - Ksenija D Glusac
- Department of Chemistry, University of Illinois Chicago, Chicago, Illinois 60607, United States
- Chemical Sciences and Engineering, Argonne National Laboratory, Lemont, Illinois 60439, United States
| |
Collapse
|
29
|
Saleem F, Liu G, Liu G, Chen B, Yun Q, Ge Y, Zhang A, Wang X, Zhou X, Wang G, Liao L, He Z, Li L, Zhang H. Crystal-Phase-Selective Etching of Heterophase Au Nanostructures. SMALL METHODS 2024:e2400430. [PMID: 38970552 DOI: 10.1002/smtd.202400430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2024] [Revised: 06/17/2024] [Indexed: 07/08/2024]
Abstract
Selective oxidative etching is one of the most effective ways to prepare hollow nanostructures and nanocrystals with specific exposed facets. The mechanism of selective etching in noble metal nanostructures mainly relies on the different reactivity of metal components and the distinct surface energy of multimetallic nanostructures. Recently, phase engineering of nanomaterials (PEN) offers new opportunities for the preparation of unique heterostructures, including heterophase nanostructures. However, the synthesis of hollow multimetallic nanostructures based on crystal-phase-selective etching has been rarely studied. Here, a crystal-phase-selective etching method is reported to selectively etch the unconventional 4H and 2H phases in the heterophase Au nanostructures. Due to the coating of Pt-based alloy and the crystal-phase-selective etching of 4H-Au in 4H/face-centered cubic (fcc) Au nanowires, the well-defined ladder-like Au@PtAg nanoframes are prepared. In addition, the 2H-Au in the fcc-2H-fcc Au nanorods and 2H/fcc Au nanosheets can also be selectively etched using the same method. As a proof-of-concept application, the ladder-like Au@PtAg nanoframes are used for the electrocatalytic hydrogen evolution reaction (HER) in acidic media, showing excellent performance that is comparable to the commercial Pt/C catalyst.
Collapse
Affiliation(s)
- Faisal Saleem
- Department of Chemistry, City University of Hong Kong, Hong Kong, China
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM) & School of Flexible Electronics (Future Technologies), Nanjing Tech University, Nanjing, 211816, China
| | - Guangyao Liu
- Department of Chemistry, City University of Hong Kong, Hong Kong, China
| | - Guigao Liu
- Department of Chemistry, City University of Hong Kong, Hong Kong, China
- National Special Superfine Powder Engineering Research Center, School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Bo Chen
- Department of Chemistry, City University of Hong Kong, Hong Kong, China
- State Key Laboratory of Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials, Nanjing University of Posts and Telecommunications, Nanjing, 210023, China
| | - Qinbai Yun
- Department of Chemistry, City University of Hong Kong, Hong Kong, China
| | - Yiyao Ge
- Department of Chemistry, City University of Hong Kong, Hong Kong, China
| | - An Zhang
- Department of Chemistry, City University of Hong Kong, Hong Kong, China
| | - Xixi Wang
- Department of Chemistry, City University of Hong Kong, Hong Kong, China
| | - Xichen Zhou
- Department of Chemistry, City University of Hong Kong, Hong Kong, China
| | - Gang Wang
- Department of Chemistry, The Chinese University of Hong Kong, Hong Kong, China
| | - Lingwen Liao
- Department of Chemistry, City University of Hong Kong, Hong Kong, China
- Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, 230031, China
| | - Zhen He
- Department of Chemistry, City University of Hong Kong, Hong Kong, China
- Hong Kong Institute for Clean Energy, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Lujiang Li
- Department of Chemistry, City University of Hong Kong, Hong Kong, China
| | - Hua Zhang
- Department of Chemistry, City University of Hong Kong, Hong Kong, China
- Hong Kong Institute for Clean Energy, City University of Hong Kong, Kowloon, Hong Kong, China
- Hong Kong Branch of National Precious Metals Material Engineering Research Center (NPMM), City University of Hong Kong, Hong Kong, China
- Shenzhen Research Institute, City University of Hong Kong, Shenzhen, 518057, China
| |
Collapse
|
30
|
Humphrey N, Tsung A, Singh S, Irshad A, Zhao B, Narayan S, Ravichandran J, Mallikarjun Sharada S. The Hydrogen Evolution Activity of BaZrS 3, BaTiS 3, and BaVS 3 Chalcogenide Perovskites. Chemphyschem 2024; 25:e202300953. [PMID: 38396282 DOI: 10.1002/cphc.202300953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 02/22/2024] [Accepted: 02/23/2024] [Indexed: 02/25/2024]
Abstract
Chalcogenide perovskites are a class of materials with electronic and optoelectronic properties desirable for solar cells, infrared optics, and computing. The oxide counterparts of these chalcogenides have been studied extensively for their electrocatalytic and photoelectrochemical properties. As chalcogenide perovskites are more covalent, conductive, and stable, we hypothesize that they are more viable as electrocatalysts than oxide perovskites. The goal of this synthetic, experimental, and computational study is to examine the hydrogen evolution reaction (HER) activity of three Barium-based chalcogenides in perovskite and related structures: BaZrS3, BaTiS3, and BaVS3. Potential energy surfaces for hydrogen adsorption on surfaces of these materials are calculated using density functional theory and the computational hydrogen electrode model is used to contrast overpotentials with experiment. Although both experiments and computations agree that BaVS3 is the most active of the three materials, high overpotentials of these materials make them less viable than platinum for HER. Our work establishes a framework for future studies in the chemical and electrochemical properties of chalcogenide perovskites.
Collapse
Affiliation(s)
- Nicholas Humphrey
- Mork Family Department of Chemical Engineering and Materials Science, University of Southern California, Los Angeles CA, USA
| | - Alicia Tsung
- Mork Family Department of Chemical Engineering and Materials Science, University of Southern California, Los Angeles CA, USA
| | - Shantanu Singh
- Mork Family Department of Chemical Engineering and Materials Science, University of Southern California, Los Angeles CA, USA
| | - Ahamed Irshad
- Department of Chemistry, University of Southern California, Los Angeles CA, USA
| | - Boyang Zhao
- Mork Family Department of Chemical Engineering and Materials Science, University of Southern California, Los Angeles CA, USA
| | - Sri Narayan
- Department of Chemistry, University of Southern California, Los Angeles CA, USA
| | - Jayakanth Ravichandran
- Mork Family Department of Chemical Engineering and Materials Science, University of Southern California, Los Angeles CA, USA
- Ming Hsieh Department of Electrical and Computer Engineering, University of Southern California, Los Angeles CA, USA
- Core Center of Excellence in NanoImaging, University of Southern California, Los Angeles CA, USA
| | - Shaama Mallikarjun Sharada
- Mork Family Department of Chemical Engineering and Materials Science, University of Southern California, Los Angeles CA, USA
- Department of Chemistry, University of Southern California, Los Angeles CA, USA
| |
Collapse
|
31
|
Liu Y, Cai C, Zhu S, Zheng Z, Li G, Chen H, Li C, Sun H, Chou IM, Yu Y, Mei S, Wang L. Enhanced Hydrogen Evolution Catalysis of Pentlandite due to the Increases in Coordination Number and Sulfur Vacancy during Cubic-Hexagonal Phase Transition. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2311161. [PMID: 38456389 DOI: 10.1002/smll.202311161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 02/03/2024] [Indexed: 03/09/2024]
Abstract
The search for new phases is an important direction in materials science. The phase transition of sulfides results in significant changes in catalytic performance, such as MoS2 and WS2. Cubic pentlandite [cPn, (Fe, Ni)9S8] can be a functional material in batteries, solar cells, and catalytic fields. However, no report about the material properties of other phases of pentlandite exists. In this study, the unit-cell parameters of a new phase of pentlandite, sulfur-vacancy enriched hexagonal pentlandite (hPn), and the phase boundary between cPn and hPn are determined for the first time. Compared to cPn, the hPn shows a high coordination number, more sulfur vacancies, and high conductivity, which result in significantly higher hydrogen evolution performance of hPn than that of cPn and make the non-nano rock catalyst hPn superior to other most known nanosulfide catalysts. The increase of sulfur vacancies during phase transition provides a new approach to designing functional materials.
Collapse
Affiliation(s)
- Yuegao Liu
- Institute of Deep-sea Science and Engineering, Chinese Academy of Sciences, Sanya, 572000, China
| | - Chao Cai
- College of Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Shengcai Zhu
- School of Materials, Sun Yat-sen University, Guangzhou, 510275, China
| | - Zhi Zheng
- Institute of Deep-sea Science and Engineering, Chinese Academy of Sciences, Sanya, 572000, China
| | - Guowu Li
- Crystal Structure Laboratory, Science Research Institute, China University of Geosciences (Beijing), Beijing, 100083, China
| | - Haiyan Chen
- Mineral Physics Institute, Stony Brook University, Stony Brook, New York, 11794-2100, USA
- Argonne National Laboratory, Chicago, 60439, USA
| | - Chao Li
- Instrumental Analysis Center, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Haiyan Sun
- Institute of Deep-sea Science and Engineering, Chinese Academy of Sciences, Sanya, 572000, China
| | - I-Ming Chou
- Institute of Deep-sea Science and Engineering, Chinese Academy of Sciences, Sanya, 572000, China
| | - Yanan Yu
- Sichuan Energy Internet Research Institute, Tsinghua University, Chengdu, 610042, China
| | - Shenghua Mei
- Institute of Deep-sea Science and Engineering, Chinese Academy of Sciences, Sanya, 572000, China
| | - Liping Wang
- Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen, 518055, China
| |
Collapse
|
32
|
Wickramaratne KMK, Ramezanipour F. Electrocatalytic Properties of Quasi-2D Oxides LaSrMn 0.5M 0.5O 4 (M = Co, Ni, Cu, and Zn) for Hydrogen and Oxygen Evolution Reactions. Molecules 2024; 29:3107. [PMID: 38999059 PMCID: PMC11243240 DOI: 10.3390/molecules29133107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2024] [Revised: 06/18/2024] [Accepted: 06/27/2024] [Indexed: 07/14/2024] Open
Abstract
Designing cost-effective and highly efficient electrocatalysts for water splitting is a significant challenge. We have systematically investigated a series of quasi-2D oxides, LaSrMn0.5M0.5O4 (M = Co, Ni, Cu, Zn), to enhance the electrocatalytic properties of the two half-reactions of water-splitting, namely oxygen and hydrogen evolution reactions (OER and HER). The four materials are isostructural, as confirmed by Rietveld refinements with X-ray diffraction. The oxygen contents and metal valence states were determined by iodometric titrations and X-ray photoelectron spectroscopy. Electrical conductivity measurements in a wide range of temperatures revealed semiconducting behavior for all four materials. Electrocatalytic properties were studied for both half-reactions of water-splitting, namely, oxygen-evolution and hydrogen-evolution reactions (OER and HER). For the four materials, the trends in both OER and HER were the same, which also matched the trend in electrical conductivities. Among them, LaSrMn0.5Co0.5O4 showed the best bifunctional electrocatalytic activity for both OER and HER, which may be attributed to its higher electrical conductivity and favorable electron configuration.
Collapse
|
33
|
Orgiani P, Braglia L, Polewczyk V, Nie Z, Lavini F, Punathum Chalil S, Chaluvadi SK, Rajak P, Morabito F, Dobovičnik E, Foglietti V, Torelli P, Riedo E, Ciancio R, Yang N, Aruta C. On the origin of the improved hydrogen evolution reaction in Mn- and Co-doped MoS 2. NANOSCALE 2024; 16:12237-12247. [PMID: 38847457 DOI: 10.1039/d4nr00876f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/28/2024]
Abstract
In the field of hydrogen production, MoS2 demonstrates good catalytic properties for the hydrogen evolution reaction (HER) which improve when doped with metal cations. However, while the role of sulfur atoms as active sites in the HER is largely reported, the role of metal atoms (i.e. molybdenum or the dopant cations) has yet to be studied in depth. To understand the role of the metal dopant, we study MoS2 thin films doped with Co and Mn ions. We identify the contribution of the electronic bands of the Mn and Co dopants to the integral valence band of the material using in situ resonant photoemission measurements. We demonstrate that Mn and Co dopants act differently: Mn doping favors the shift of the S-Mo hybridized band towards the Fermi level, while in the case of Co doping it is the less hybridized Co band that shifts closer to the Fermi level. Doping with Mn increases the effectiveness of S as the active site, thus improving the HER, while doping with Co introduces the metallic site of Co as the active site, which is less effective in improving HER properties. We therefore clarify the role of the dopant cation in the electronic structure determining the active site for hydrogen adsorption/desorption. Our results pave the way for the design of efficient materials for hydrogen production via the doping route, which can be extended to different catalytic reactions in the field of energy applications.
Collapse
Affiliation(s)
- Pasquale Orgiani
- CNR-IOM, Strada Statale 14, km 163, 5 Basovizza, Trieste 34149, Italy
| | - Luca Braglia
- CNR-IOM, Strada Statale 14, km 163, 5 Basovizza, Trieste 34149, Italy
- Area Science Park, Padriciano 99, Trieste 34149, Italy
| | - Vincent Polewczyk
- CNR-IOM, Strada Statale 14, km 163, 5 Basovizza, Trieste 34149, Italy
| | - Zhiwei Nie
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Francesco Lavini
- Tandon School of Engineering, New York University, New York, NY 11201, USA
| | | | | | - Piu Rajak
- CNR-IOM, Strada Statale 14, km 163, 5 Basovizza, Trieste 34149, Italy
| | - Floriana Morabito
- CNR-IOM, Strada Statale 14, km 163, 5 Basovizza, Trieste 34149, Italy
- Area Science Park, Padriciano 99, Trieste 34149, Italy
| | - Edvard Dobovičnik
- Department of Engineering and Architecture, University of Trieste, Trieste 34127, Italy
| | | | - Piero Torelli
- CNR-IOM, Strada Statale 14, km 163, 5 Basovizza, Trieste 34149, Italy
| | - Elisa Riedo
- Tandon School of Engineering, New York University, New York, NY 11201, USA
| | - Regina Ciancio
- CNR-IOM, Strada Statale 14, km 163, 5 Basovizza, Trieste 34149, Italy
- Area Science Park, Padriciano 99, Trieste 34149, Italy
| | - Nan Yang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Carmela Aruta
- CNR-SPIN, via del Fosso del Cavaliere 100, Roma 00133, Italy.
| |
Collapse
|
34
|
Sam DK, Cao Y. Iron-Cobalt Nanoparticles Embedded in B,N-Doped Chitosan-Derived Porous Carbon Aerogel for Overall Water Splitting. ACS APPLIED MATERIALS & INTERFACES 2024; 16:32311-32321. [PMID: 38870486 DOI: 10.1021/acsami.4c06141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2024]
Abstract
Given their intriguing properties, porous carbons have surfaced as promising electrocatalysts for various energy conversion reactions. This study presents a unique approach where iron-cobalt (FeCo) is confined in a boron, nitrogen-doped chitosan-derived porous carbon aerogel (BNPC-FeCo) to serve as an electrocatalyst for the hydrogen evolution and oxygen evolution reactions (HER and OER). The BNPC-FeCo-900 electrocatalyst demonstrates excellent catalyst activity, with very low overpotentials of 186 and 320 mV at 10 mA cm-2, low Tafel slopes of 82 and 55 mV dec-1, and low charge transfer resistance of 2.68 and 9.25 Ω for HER and OER, respectively. Density functional theory (DFT) calculations further reveal that the cooperation between the boron, nitrogen codoped porous carbon, and the FeCo nanoparticles reduces intermediates' energy barriers, significantly enhancing the HER and OER performance. In conclusion, this work offers significant and informative perspectives into the potential of porous carbon materials as dual-purpose electrocatalysts for water splitting.
Collapse
Affiliation(s)
- Daniel Kobina Sam
- School of Energy Science and Engineering, University of Science and Technology of China, Guangzhou 510640, China
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China
- CAS Key Laboratory of Renewable Energy, Guangzhou 510640, China
- Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510640, China
| | - Yan Cao
- School of Energy Science and Engineering, University of Science and Technology of China, Guangzhou 510640, China
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China
- CAS Key Laboratory of Renewable Energy, Guangzhou 510640, China
- Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510640, China
| |
Collapse
|
35
|
García-Rodríguez M, Cazorla-Amorós D, Morallón E. Eco-Friendly Mechanochemical Synthesis of Bifunctional Metal Oxide Electrocatalysts for Zn-Air Batteries. CHEMSUSCHEM 2024:e202401055. [PMID: 38924618 DOI: 10.1002/cssc.202401055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2024] [Revised: 06/20/2024] [Accepted: 06/24/2024] [Indexed: 06/28/2024]
Abstract
The development of green and environmentally friendly synthesis methods of electrocatalysts is a crucial aspect in decarbonizing energy generation. In this study, eco-friendly mechanochemical synthesis of perovskite metal oxide-carbon black composites is proposed using different conditions and additives such as KOH. Furthermore, the optimization of ball milling conditions, including time and rotational speed, is studied. The mechanochemical synthesis in solid-state conditions without additives produces electrocatalysts that exhibit the highest bifunctional electrochemical activity towards both oxygen reduction reaction (ORR) and oxygen evolution reaction (OER). Moreover, this synthesis demonstrates a lower Environmental Impact Factor (E-factor), indicating its greener nature, and due to its simplicity, it has a great potential for scalability. The obtained bifunctional electrocatalysts have been tested in a rechargeable zinc-air battery (ZAB) for 22 h with similar performance compared to the commercial catalyst (Pt/C) at significantly lower cost. These promising findings are attributed to the enhanced interaction between the perovskite metal oxide and carbon material and the improved dispersion of the perovskite metal oxide on the carbon materials.
Collapse
Affiliation(s)
- M García-Rodríguez
- Dept. Química Física e Instituto Universitario de Materiales, Universidad de Alicante, Ap. 99, E-03080, Alicante, Spain
| | - D Cazorla-Amorós
- Dept. Química Inorgánica e Instituto Universitario de Materiales, Universidad de Alicante, Ap. 99, E-03080, Alicante, Spain
| | - E Morallón
- Dept. Química Física e Instituto Universitario de Materiales, Universidad de Alicante, Ap. 99, E-03080, Alicante, Spain
| |
Collapse
|
36
|
Kang Y, Li S, Cretu O, Kimoto K, Zhao Y, Zhu L, Wei X, Fu L, Jiang D, Wan C, Jiang B, Asahi T, Zhang D, Li H, Yamauchi Y. Mesoporous amorphous non-noble metals as versatile substrates for high loading and uniform dispersion of Pt-group single atoms. SCIENCE ADVANCES 2024; 10:eado2442. [PMID: 38905333 PMCID: PMC11192073 DOI: 10.1126/sciadv.ado2442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Accepted: 05/14/2024] [Indexed: 06/23/2024]
Abstract
Atomically dispersed Pt-group metals are promising as nanocatalysts because of their unique geometric structures and ultrahigh atomic utilization. However, loading isolated Pt-group metals in single-atom alloys (SAAs) with distinctive bimetallic sites is challenging. In this study, we present amorphous mesoporous Ni boride (Ni-B) as an ideal substrate to uniformly disperse Pt atoms with tunable loadings (1.7 to 12.2 wt %). The effect of the morphology, composition, and crystal phase of the Ni-B host on the growth and dispersion of Pt atoms is discussed. The resulting amorphous Pt-Ni-B mesoporous nanospheres exhibit superior electrocatalytic H2 evolution performance in acidic media. This strategy holds the potential to synthesize a diverse library of mesoporous amorphous Pt-group SAAs, by leveraging functional amorphous nanostructured 3d transition-metal borides as substrates, thereby proposing a comprehensive strategy to control atomically dispersed Pt-group metals.
Collapse
Affiliation(s)
- Yunqing Kang
- Nanozyme Laboratory in Zhongyuan, Henan Academy of Innovations in Medical Science, Zhengzhou 451163, Henan, China
- Research Center for Materials Nanoarchitectonics, National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Shuangjun Li
- The Education Ministry Key Lab of Resource Chemistry, Joint International Research Laboratory of Resource Chemistry, Shanghai Frontiers Science Center of Biomimetic Catalysis, College of Chemistry and Materials Science, Shanghai Normal University, Shanghai 200234, China
| | - Ovidiu Cretu
- Electron Microscopy Group, Center for Basic Research on Materials, NIMS, Namiki 1-1, Tsukuba, Ibaraki 305-0044, Japan
| | - Koji Kimoto
- Electron Microscopy Group, Center for Basic Research on Materials, NIMS, Namiki 1-1, Tsukuba, Ibaraki 305-0044, Japan
| | - Yingji Zhao
- Faculty of Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169-8555, Japan
| | - Liyang Zhu
- Faculty of Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169-8555, Japan
| | - Xiaoqian Wei
- Faculty of Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169-8555, Japan
| | - Lei Fu
- Research Center for Materials Nanoarchitectonics, National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Dong Jiang
- Faculty of Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169-8555, Japan
| | - Chao Wan
- Research Center for Materials Nanoarchitectonics, National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Bo Jiang
- The Education Ministry Key Lab of Resource Chemistry, Joint International Research Laboratory of Resource Chemistry, Shanghai Frontiers Science Center of Biomimetic Catalysis, College of Chemistry and Materials Science, Shanghai Normal University, Shanghai 200234, China
| | - Toru Asahi
- Faculty of Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169-8555, Japan
| | - Dieqing Zhang
- The Education Ministry Key Lab of Resource Chemistry, Joint International Research Laboratory of Resource Chemistry, Shanghai Frontiers Science Center of Biomimetic Catalysis, College of Chemistry and Materials Science, Shanghai Normal University, Shanghai 200234, China
| | - Hexing Li
- The Education Ministry Key Lab of Resource Chemistry, Joint International Research Laboratory of Resource Chemistry, Shanghai Frontiers Science Center of Biomimetic Catalysis, College of Chemistry and Materials Science, Shanghai Normal University, Shanghai 200234, China
| | - Yusuke Yamauchi
- Australian Institute for Bioengineering and Nanotechnology (AIBN) and School of Chemical Engineering, The University of Queensland, Brisbane, QLD 4072, Australia
- Department of Materials Process Engineering, Graduate School of Engineering, Nagoya University, Nagoya 464–8603, Japan
| |
Collapse
|
37
|
Jeong S, Branco AJ, Bollen SW, Sullivan CS, Ross MB. Universal pH electrocatalytic hydrogen evolution with Au-based high entropy alloys. NANOSCALE 2024; 16:11530-11537. [PMID: 38832893 DOI: 10.1039/d4nr01538j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2024]
Abstract
The creation of electrocatalysts with reduced concentrations of platinum-group metals remains a critical challenge for electrochemical hydrogen production. High-entropy alloys (HEAs) offer a distinct type of catalyst with tunable compositions and engineered surface activity, significantly enhancing the hydrogen evolution reaction (HER). We present the synthesis of AuPdFeNiCo HEA nanoparticles (NPs) using a wet impregnation method. The composition and structure of the AuPdFeNiCo HEA NPs are characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and high-resolution transmission electron microscopy (HR-TEM). These nanoparticles exhibit robust HER performance quantified over a broad pH range, with higher activity than any of the unary metal counterparts in all pHs. In comparison to a commercial 10%Pt/C electrocatalyst, AuPdFeNiCo HEA NPs exhibit enhanced electrochemical activity in both acidic and alkaline electrolytes at a current density of 10 mA cm-2. Additionally, these nanoparticles achieve a current density of 100 mA cm-2 at a voltage of 540 mV in neutral electrolytes, outperforming Pt/C which requires 570 mV. These findings help enable broad use of reduced precious metal electrocatalysts for water electrolysis in a variety of water and pH conditions.
Collapse
Affiliation(s)
- Sangmin Jeong
- Department of Chemistry, University of Massachusetts Lowell, Lowell, MA 01854, USA.
| | - Anthony J Branco
- Department of Chemistry, University of Massachusetts Lowell, Lowell, MA 01854, USA.
| | - Silas W Bollen
- Department of Chemistry, University of Massachusetts Lowell, Lowell, MA 01854, USA.
| | - Connor S Sullivan
- Department of Chemistry, University of Massachusetts Lowell, Lowell, MA 01854, USA.
| | - Michael B Ross
- Department of Chemistry, University of Massachusetts Lowell, Lowell, MA 01854, USA.
| |
Collapse
|
38
|
Wu K, Wang D, Fu Q, Xu T, Xiong Q, Peera SG, Liu C. Co/Ce-MOF-Derived Oxygen Electrode Bifunctional Catalyst for Rechargeable Zinc-Air Batteries. Inorg Chem 2024; 63:11135-11145. [PMID: 38829208 DOI: 10.1021/acs.inorgchem.4c00787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2024]
Abstract
Improving the practicality of rechargeable zinc-air batteries relies heavily on the development of oxygen electrode catalysts that are low-cost, durable, and highly efficient in performing dual functions. In the present study, a catalyst with atomic Ce and Co distribution on a nitrogen-doped carbon substrate was prepared by doping the rare earth elements Ce and Co into a metal-organic framework precursor. Rare earth element Ce, known for its unique structure and excellent oxygen affinity, was utilized to regulate the catalytic activity. The catalyst prepared in this study demonstrated an exceptional electrocatalytic performance. At a current density of 10 mA cm-2, the catalyst exhibited an overpotential of 340 mV for the oxygen evolution reaction (OER), which was lower than that of commercial IrO2 (370 mV), while achieving a half-wave potential of 0.79 V for the process of oxygen reduction reaction (ORR), exhibiting a similar level of effectiveness as commercially accessible Pt/C catalysts (0.8 V). The catalyst's porous structure, interconnected three-dimensional carbon network, and large specific surface area are the factors contributing to the significant improvement in catalytic performance. Furthermore, in comparison to commercial Pt/C+IrO2, the catalyst exhibited good cycling stability and high efficiency in rechargeable zinc-air batteries.
Collapse
Affiliation(s)
- Kang Wu
- School of Materials Science and Engineering, Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, People's Republic of China
| | - Daomiao Wang
- School of Materials Science and Engineering, Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, People's Republic of China
| | - Qiming Fu
- School of Materials Science and Engineering, Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, People's Republic of China
| | - Tao Xu
- School of Materials Science and Engineering, Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, People's Republic of China
| | - Qiang Xiong
- School of Materials Science and Engineering, Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, People's Republic of China
| | - Shaik Gouse Peera
- Department of Environmental Engineering, Keimyung University, 1095, Dalseo-gu, Daegu 42601, Republic of Korea
| | - Chao Liu
- School of Materials Science and Engineering, Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, People's Republic of China
| |
Collapse
|
39
|
Yang K, Ma H, Ren R, Xiao L, Jiang W, Xie Y, Wang G, Lu J, Zhuang L. Multidimensional Electrochemistry Decodes the Operando Mechanism of Hydrogen Oxidation. Angew Chem Int Ed Engl 2024; 63:e202318389. [PMID: 38613385 DOI: 10.1002/anie.202318389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 04/11/2024] [Accepted: 04/12/2024] [Indexed: 04/14/2024]
Abstract
Being an efficient approach to the utilization of hydrogen energy, the hydrogen oxidation reaction (HOR) is of particular significance in the current carbon-neutrality time. Yet the mechanistic picture of the HOR is still blurred, mostly because the elemental steps of this reaction are rapid and highly entangled, especially when deviating from the thermodynamic equilibrium state. Here we report a strategy for decoding the HOR mechanism under operando conditions. In addition to the wide-potential-range I-V curves obtained using gas diffusion electrodes, we have applied the AC impedance spectroscopy to provide independent and complementary kinetic information. Combining multidimensional data sources has enabled us to fit, in mathematical rigor, the core kinetic parameter set in a 5-D data space. The reaction rate of the three elemental steps (Tafel, Heyrovsky, and Volmer reactions), as a function of the overpotential, can thus be distilled individually. Such an undocumented kinetic picture unravels, in detail, how the HOR is controlled by the elemental steps on polarization. For instance, at low polarization region, the Heyrovsky reaction is relatively slow and can be ignored; but at high polarization region, the Heyrovsky reaction will surpass the Tafel reaction. Additionally, the Volmer reaction has been the fastest within overpotentials of interest. Our findings not only offer a better understanding of the HOR mechanism, but also lay the foundation for the development of improved hydrogen energy utilization systems.
Collapse
Affiliation(s)
- Kaicong Yang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Hualong Ma
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Renjie Ren
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Li Xiao
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Wenyong Jiang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Yu Xie
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Gongwei Wang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Juntao Lu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Lin Zhuang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| |
Collapse
|
40
|
Zeng JS, Cosner EL, Delgado-Kukuczka SP, Jiang C, Adams JS, Román-Leshkov Y, Manthiram K. Electrifying Hydroformylation Catalysts Exposes Voltage-Driven C-C Bond Formation. J Am Chem Soc 2024; 146:16521-16530. [PMID: 38856020 PMCID: PMC11191585 DOI: 10.1021/jacs.4c02992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Revised: 05/29/2024] [Accepted: 05/30/2024] [Indexed: 06/11/2024]
Abstract
Electrochemical reactions can access a significant range of driving forces under operationally mild conditions and are thus envisioned to play a key role in decarbonizing chemical manufacturing. However, many reactions with well-established thermochemical precedents remain difficult to achieve electrochemically. For example, hydroformylation (thermo-HFN) is an industrially important reaction that couples olefins and carbon monoxide (CO) to make aldehydes. However, the electrochemical analogue of hydroformylation (electro-HFN), which uses protons and electrons instead of hydrogen gas, represents a complex C-C bond-forming reaction that is difficult to achieve at heterogeneous electrocatalysts. In this work, we import Rh-based thermo-HFN catalysts onto electrode surfaces to unlock electro-HFN reactivity. At mild conditions of room temperature and 5 bar CO, we achieve Faradaic efficiencies of up to 15% and turnover frequencies of up to 0.7 h-1. This electro-HFN rate is an order of magnitude greater than the corresponding thermo-HFN rate at the same catalyst, temperature, and pressure. Reaction kinetics and operando X-ray absorption spectroscopy provide evidence for an electro-HFN mechanism that involves distinct elementary steps relative to thermo-HFN. This work demonstrates a step-by-step experimental strategy for electrifying a well-studied thermochemical reaction to unveil a new electrocatalyst for a complex and underexplored electrochemical reaction.
Collapse
Affiliation(s)
- Joy S. Zeng
- Department
of Chemical Engineering, Massachusetts Institute
of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Emma L. Cosner
- Division
of Chemistry and Chemical Engineering, California
Institute of Technology, Pasadena, California 91125, United States
| | - Spencer P. Delgado-Kukuczka
- Division
of Chemistry and Chemical Engineering, California
Institute of Technology, Pasadena, California 91125, United States
| | - Chenyu Jiang
- Division
of Chemistry and Chemical Engineering, California
Institute of Technology, Pasadena, California 91125, United States
| | - Jason S. Adams
- Division
of Chemistry and Chemical Engineering, California
Institute of Technology, Pasadena, California 91125, United States
| | - Yuriy Román-Leshkov
- Department
of Chemical Engineering, Massachusetts Institute
of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Karthish Manthiram
- Division
of Chemistry and Chemical Engineering, California
Institute of Technology, Pasadena, California 91125, United States
| |
Collapse
|
41
|
Adhikari S, Steinmann SN, Arunachalam M, Kang SH, Kim DH. Unraveling the Oxidation Kinetics Through Electronic Structure Regulation of MnCo 2O 4.5@Ni 3S 2 p-n Junction for Urea-Assisted Electrocatalytic Activity. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2311548. [PMID: 38850179 DOI: 10.1002/smll.202311548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 05/06/2024] [Indexed: 06/10/2024]
Abstract
A promising strategy to boost electrocatalytic performance is via assembly of hetero-nanostructured electrocatalysts that delivers the essential specific surface area and also active sites by lowering the reaction barrier. However, the challenges associated with the intricate designs and mechanisms remain underexplored. Therefore, the present study constructs a p-n junction in a free-standing MnCo2O4.5@Ni3S2 on Ni-Foam. The space-charge region's electrical characteristics is dramatically altered by the formed p-n junction, which enhances the electron transfer process for urea-assisted electrocatalytic water splitting (UOR). The optimal MnCo2O4.5@Ni3S2 electrocatalyst results in greater oxygen evolution reactivity (OER) than pure systems, delivering an overpotential of only 240 mV. Remarkably, upon employing as UOR electrode the required potential decreases to 30 mV. The impressive performance of the designed catalyst is attributed to the enhanced electrical conductivity, greater number of electrochemical active sites, and improved redox activity due to the junction interface formed between p-MnCo2O4.5 and n-Ni3S2. There are strong indications that the in situ formed extreme-surface NiOOH, starting from Ni3S2, boosts the electrocatalytic activity, i.e., the electrochemical surface reconstruction generates the active species. In conclusion, this work presents a high-performance p-n junction design for broad use, together with a viable and affordable UOR electrocatalyst.
Collapse
Affiliation(s)
- Sangeeta Adhikari
- School of Chemical Engineering, Chonnam National University, 77, Yongbong-ro, Buk-gu, Gwangju, 61186, Republic of Korea
| | - Stephan N Steinmann
- Ecole Normale Supérieure de Lyon, CNRS, Laboratoire de Chimie UMR 5182, 46 allée d'Italie, Lyon, F-69364, France
| | - Maheswari Arunachalam
- Department of Chemistry Education, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Soon Hyung Kang
- Department of Chemistry Education, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Do-Heyoung Kim
- School of Chemical Engineering, Chonnam National University, 77, Yongbong-ro, Buk-gu, Gwangju, 61186, Republic of Korea
| |
Collapse
|
42
|
Chattopadhyay S, Mahapatra PL, Mattur MN, Pramanik A, Gupta S, Pieshkov TS, Saju S, Costin G, Vajtai R, Tiwary CS, Yakobson BI, Ajayan PM. Unlocking the Potential: Atomically Thin 2D Fluoritene from Exfoliated Fluorite Ore and Its Electrochemical Activity. NANO LETTERS 2024. [PMID: 38842459 DOI: 10.1021/acs.nanolett.4c01283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2024]
Abstract
Fluorite mineral holds significant importance because of its optoelectronic properties and wide range of applications. Here, we report the successful exfoliation of bulk fluorite ore (calcium fluoride, CaF2) crystals into atomically thin two-dimensional fluoritene (2D CaF2) using a highly scalable liquid-phase exfoliation method. The microscopic and spectroscopy characterizations show the formation of (111) plane-oriented 2D CaF2 sheets with exfoliation-induced material strain due to bond breaking, leading to the changes in lattice parameter. Its potential role in electrocatalysis is further explored for deeper insight, and a probable mechanism is also discussed. The 2D CaF2 with long-term stability shows overpotential values of 670 and 770 mV vs RHE for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER), respectively, at 10 mA cm-2. Computational simulations demonstrate the unique "direct-indirect" band gap switching with odd and even numbers of layers. Current work offers new avenues for exploring the structural and electrochemical properties of 2D CaF2 and its potential applicability.
Collapse
Affiliation(s)
- Shreyasi Chattopadhyay
- Department of Materials Science and NanoEngineering, Rice University, Houston, Texas 77005, United States
| | - Preeti Lata Mahapatra
- School of Nano Science and Technology, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal 721302, India
| | - Manoj N Mattur
- Department of Materials Science and NanoEngineering, Rice University, Houston, Texas 77005, United States
| | - Atin Pramanik
- Department of Materials Science and NanoEngineering, Rice University, Houston, Texas 77005, United States
| | - Sunny Gupta
- Department of Materials Science and NanoEngineering, Rice University, Houston, Texas 77005, United States
| | - Tymofii S Pieshkov
- Department of Materials Science and NanoEngineering, Rice University, Houston, Texas 77005, United States
| | - Sreehari Saju
- Department of Materials Science and NanoEngineering, Rice University, Houston, Texas 77005, United States
| | - Gelu Costin
- Department of Earth Environmental and Planetary Sciences, Rice University, Houston, Texas 77005, United States
| | - Robert Vajtai
- Department of Materials Science and NanoEngineering, Rice University, Houston, Texas 77005, United States
| | - Chandra Sekhar Tiwary
- Metallurgical and Materials Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Boris I Yakobson
- Department of Materials Science and NanoEngineering, Rice University, Houston, Texas 77005, United States
| | - Pulickel M Ajayan
- Department of Materials Science and NanoEngineering, Rice University, Houston, Texas 77005, United States
| |
Collapse
|
43
|
Gao H, Xu J, Zhang X, Zhou M. Benchmarking the Intrinsic Activity of Transition Metal Oxides for the Oxygen Evolution Reaction with Advanced Nanoelectrodes. Angew Chem Int Ed Engl 2024; 63:e202404663. [PMID: 38575553 DOI: 10.1002/anie.202404663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Revised: 04/03/2024] [Accepted: 04/03/2024] [Indexed: 04/06/2024]
Abstract
The intrinsic activity assessment of transition metal oxides (TMOs) as key electrocatalysts for the oxygen evolution reaction (OER) has not been standardized due to uncertainties regarding their structure and composition, difficulties in accurately measuring their electrochemically active surface area (ECSA), and deficiencies in mass-transfer (MT) rates in conventional measurements. To address these issues, we utilized an electrodeposition-thermal annealing method to precisely synthesize single-particle TMOs with well-defined structure and composition. Concurrently, we engineered low roughness, spherical surfaces for individual particles, enabling precise measurement of their ECSA. Furthermore, by constructing a conductor-core semiconductor-shell structure, we evaluated the inherent OER activity of perovskite-type semiconductor materials, broadening the scope beyond just conductive TMOs. Finally, using single-particle nanoelectrode technique, we systematically measured individual TMO particles of various sizes for OER, overcoming MT limitations seen in conventional approaches. These improvements have led us to propose a precise and reliable approach to evaluating the intrinsic activity of TMOs, not only validating the accuracy of theoretical calculations but also revealing a strong correlation of OER activity on the melting point of TMOs. This discovery holds significant importance for future high-throughput material research and applications, offering valuable insights in electrocatalysis.
Collapse
Affiliation(s)
- Han Gao
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Jianan Xu
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China
| | - Xueqi Zhang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Min Zhou
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, China
| |
Collapse
|
44
|
Dhawale SC, Digraskar RV, Ghule AV, Sathe BR. Noble metal-free CZTS electrocatalysis: synergetic characteristics and emerging applications towards water splitting reactions. Front Chem 2024; 12:1394191. [PMID: 38882214 PMCID: PMC11177786 DOI: 10.3389/fchem.2024.1394191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Accepted: 04/19/2024] [Indexed: 06/18/2024] Open
Abstract
This review provides a comprehensive overview of the production and modification of CZTS nanoparticles (NPs) and their application in electrocatalysis for water splitting. Various aspects, including surface modification, heterostructure design with carbon nanostructured materials, and tunable electrocatalytic studies, are discussed. A key focus is the synthesis of small CZTS nanoparticles with tunable reactivity, emphasizing the sonochemical method's role in their formation. Despite CZTS's affordability, it often exhibits poor hydrogen evolution reaction (HER) behavior. Carbon materials like graphene, carbon nanotubes, and C60 are highlighted for their ability to enhance electrocatalytic activity due to their unique properties. The review also discusses the amine functionalization of graphene oxide/CZTS composites, which enhances overall water splitting performance. Doping with non-noble metals such as Fe, Co., and Ni is presented as an effective strategy to improve catalytic activity. Additionally, the synthesis of heterostructures consisting of CZTS nanoparticles attached to MoS2-reduced graphene oxide (rGO) hybrids is explored, showing enhanced HER activity compared to pure CZTS and MoS2. The growing demand for energy and the need for efficient renewable energy sources, particularly hydrogen generation, are driving research in this field. The review aims to demonstrate the potential of CZTS-based electrocatalysts for high-performance and cost-effective hydrogen generation with low environmental impact. Vacuum-based and non-vacuum-based methods for fabricating CZTS are discussed, with a focus on simplicity and efficiency. Future developments in CZTS-based electrocatalysts include enhancing activity and stability, improving charge transfer mechanisms, ensuring cost-effectiveness and scalability, increasing durability, integrating with renewable energy sources, and gaining deeper insight into reaction processes. Overall, CZTS-based electrocatalysts show great promise for sustainable hydrogen generation, with ongoing research focused on improving performance and advancing their practical applications.
Collapse
Affiliation(s)
- Somnath C Dhawale
- Department of Chemistry, Dr. Babasaheb Ambedkar Marathwada University, Chhatrapati Sambhajinagar, Maharashtra, India
| | - Renuka V Digraskar
- Department of Chemistry, Dr. Babasaheb Ambedkar Marathwada University, Chhatrapati Sambhajinagar, Maharashtra, India
- Department of Nanotechnology, Dr. Babasaheb Ambedkar Marathwada University, Chhatrapati Sambhajinagar, Maharashtra, India
- Department of Chemistry, Savitribai Phule Pune University, Pune, India
| | - Anil V Ghule
- Department of Chemistry, Shivaji University, Kolhapur, Maharashtra, India
| | - Bhaskar R Sathe
- Department of Chemistry, Dr. Babasaheb Ambedkar Marathwada University, Chhatrapati Sambhajinagar, Maharashtra, India
- Department of Nanotechnology, Dr. Babasaheb Ambedkar Marathwada University, Chhatrapati Sambhajinagar, Maharashtra, India
| |
Collapse
|
45
|
Yao Y, Liu Y, Shin J, Cai S, Zhang X, Guo Z, Blackman CS. In-situ fabrication of self-supported cobalt molybdenum sulphide on carbon paper for bifunctional water electrocatalysis. Heliyon 2024; 10:e31108. [PMID: 38826749 PMCID: PMC11141360 DOI: 10.1016/j.heliyon.2024.e31108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 04/30/2024] [Accepted: 05/09/2024] [Indexed: 06/04/2024] Open
Abstract
The fabrication of highly efficient yet stable noble-metal-free bifunctional electrocatalysts that can simultaneously catalyse both hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) remains challenging. Herein, we employ the heterostructure coupling strategy, showcasing an aerosol-assisted chemical vapour deposition (AACVD) aided synthetic approach for the in-situ growth of cobalt molybdenum sulphide nanocomposites on carbon paper (CoMoS@CP) as a bifunctional electrocatalyst. The AACVD allows the rational incorporation of Co in the Mo-S binary structure, which modulates the morphology of CoMoS@CP, resulting in enhanced HER activity (ŋ10 = 171 mV in acidic and ŋ10 = 177 mV in alkaline conditions). Furthermore, the CoS2 species in the CoMoS@CP ternary structure extends the OER capability, yielding an ŋ100 of 455 mV in 1 M KOH. Lastly, we found that the synergistic effect of the Co-Mo-S interface elevates the bifunctional performance beyond binary counterparts, achieving a low cell voltage (1.70 V at 10 mA cm-2) in overall water splitting test and outstanding catalytic stability (∼90 % performance retention after 50-/30-h continuous operation at 10 and 100 mA cm-2, respectively). This work has opened up a new methodology for the controllable synthesis of self-supported transition metal-based electrocatalysts for applications in overall water splitting.
Collapse
Affiliation(s)
- Yuting Yao
- Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, UK
| | - Yuhan Liu
- Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, UK
| | - Juhun Shin
- Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, UK
| | - Shenglin Cai
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Xinyue Zhang
- Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, UK
| | - Zhengxiao Guo
- Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, UK
- Department of Chemistry, HKU-CAS Joint Laboratory on New Materials, University of Hong Kong, Hong Kong SAR, 999077, China
- HKU Zhejiang Institute of Research and Innovation, Hangzhou, 311305, China
| | | |
Collapse
|
46
|
Huang JF, Hsieh WJ, Chen JL. Carbon-Promoted Pt-Single Atoms Anchored on RuO 2 Nanorods to Boost Electrochemical Hydrogen Evolution. ACS APPLIED MATERIALS & INTERFACES 2024; 16:27504-27510. [PMID: 38758608 PMCID: PMC11145582 DOI: 10.1021/acsami.4c06033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2024] [Revised: 05/09/2024] [Accepted: 05/13/2024] [Indexed: 05/19/2024]
Abstract
While efficient for electrochemical hydrogen evolution reaction (HER), Pt is limited by its cost and rarity. Traditional Pt catalysts and Pt single-atom (aPt) catalysts (Pt-SACs) face challenges in maintaining kinetically favorable HER pathways (Volmer-Tafel) at ultralow Pt loadings. Herein, carbon-promoted aPts were deposited on RuO2 without the addition of reductants. aPts confined on carbon-supported RuO2 nanorods (aPt/RuO2NR/Carbon) promoted "inter-aPts" Tafel. aPt/RuO2NR/Carbon is the Pt-SAC that retained underpotentially deposited H; additionally, its HER onset overpotential was "negative". The aPt/RuO2NR/Carbon exhibited 260-fold higher Pt mass activity (imPt)/turnover frequency (TOF) (522.7 A mg-1/528.4 s-1) than that of commercial Pt/C (1.9 A mg-1/1.9 s-1). In an ultralow Pt loading (0.19 μg cm-2), the HER rate-determining step maintained Volmer-Tafel and the Pt utilization efficiency was 100.3%.
Collapse
Affiliation(s)
- Jing-Fang Huang
- A
Department of Chemistry, National Chung
Hsing University, Taichung 402, Taiwan (R.O.C)
| | - Wen-Jun Hsieh
- A
Department of Chemistry, National Chung
Hsing University, Taichung 402, Taiwan (R.O.C)
| | - Jeng-Lung Chen
- National
Synchrotron Radiation Research Center, Science-Based
Industrial Park, Hsinchu30076, Taiwan (R.O.C)
| |
Collapse
|
47
|
Rajagopal V, Mehla S, Jones LA, Bhargava SK. Nanoengineered Cobalt Electrocatalyst for Alkaline Oxygen Evolution Reaction. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:946. [PMID: 38869572 PMCID: PMC11173492 DOI: 10.3390/nano14110946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2024] [Revised: 05/18/2024] [Accepted: 05/24/2024] [Indexed: 06/14/2024]
Abstract
The alkaline oxygen evolution reaction (OER) remains a bottleneck in green hydrogen production owing to its slow reaction kinetics and low catalytic efficiencies of earth abundant electrocatalysts in the alkaline OER reaction. This study investigates the OER performance of hierarchically porous cobalt electrocatalysts synthesized using the dynamic hydrogen bubble templating (DHBT) method. Characterization studies revealed that electrocatalysts synthesized under optimized conditions using the DHBT method consisted of cobalt nanosheets, and hierarchical porosity with macropores distributed in a honeycomb network and mesopores distributed between cobalt nanosheets. Moreover, X-ray photoelectron spectroscopy studies revealed the presence of Co(OH)2 as the predominant surface cobalt species while Raman studies revealed the presence of the cubic Co3O4 phase in the synthesized electrocatalysts. The best performing electrocatalyst required only 360 mV of overpotential to initiate a current density of 10 mA cm-2, exhibited a Tafel slope of 37 mV dec-1, and stable OER activity over 24 h. The DHBT method offers a facile, low cost and rapid synthesis approach for preparation for highly efficient cobalt electrocatalysts.
Collapse
Affiliation(s)
| | | | | | - Suresh K. Bhargava
- Centre for Advanced Materials and Industrial Chemistry (CAMIC), School of Science, STEM College, RMIT University, GPO Box 2476, Melbourne, VIC 3001, Australia; (V.R.); (S.M.)
| |
Collapse
|
48
|
Lee WS, Maeda H, Kuo YT, Muraoka K, Fukui N, Takada K, Sasaki S, Masunaga H, Nakayama A, Tian HK, Nishihara H, Sakaushi K. Spontaneous-Spin-Polarized 2D π-d Conjugated Frameworks Towards Enhanced Oxygen Evolution Kinetics. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2401987. [PMID: 38805737 DOI: 10.1002/smll.202401987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Revised: 04/30/2024] [Indexed: 05/30/2024]
Abstract
Alternative strategies to design sustainable-element-based electrocatalysts enhancing oxygen evolution reaction (OER) kinetics are demanded to develop affordable yet high-performance water-electrolyzers for green hydrogen production. Here, it is demonstrated that the spontaneous-spin-polarized 2D π-d conjugated framework comprising abundant elements of nickel and iron with a ratio of Ni:Fe = 1:4 with benzenehexathiol linker (BHT) can improve OER kinetics by its unique electronic property. Among the bimetallic NiFex:y-BHTs with various ratios with Ni:Fe = x:y, the NiFe1:4-BHT exhibits the highest OER activity. The NiFe1:4-BHT shows a specific current density of 140 A g-1 at the overpotential of 350 mV. This performance is one of the best activities among state-of-the-art non-precious OER electrocatalysts and even comparable to that of the platinum-group-metals of RuO2 and IrO2. The density functional theory calculations uncover that introducing Ni into the homometallic Fe-BHT (e.g., Ni:Fe = 0:1) can emerge a spontaneous-spin-polarized state. Thus, this material can achieve improved OER kinetics with spin-polarization which previously required external magnetic fields. This work shows that a rational design of 2D π-d conjugated frameworks can be a powerful strategy to synthesize promising electrocatalysts with abundant elements for a wide spectrum of next-generation energy devices.
Collapse
Affiliation(s)
- Won Seok Lee
- Research Center for Energy and Environmental Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
| | - Hiroaki Maeda
- Research Institute for Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, 278-8510, Japan
| | - Yen-Ting Kuo
- Department of Chemical Engineering, National Cheng Kung University, Tainan, 70101, Taiwan
| | - Koki Muraoka
- Department of Chemical System Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Naoya Fukui
- Research Institute for Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, 278-8510, Japan
| | - Kenji Takada
- Research Institute for Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, 278-8510, Japan
| | - Sono Sasaki
- Faculty of Fiber Science and Engineering, Kyoto Institute of Technology, Matsugasaki Hashikami-cho 1, Sakyo-ku, Kyoto, 606-8585, Japan
- SPring-8 Center, RIKEN, Kouto 1-1-1, Sayo-cho, Sayo-gun, Hyogo, 679-5148, Japan
| | - Hiroyasu Masunaga
- Japan Synchrotron Radiation Research Institute (JASRI), 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo, 679-5198, Japan
| | - Akira Nakayama
- Department of Chemical System Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Hong-Kang Tian
- Department of Chemical Engineering, National Cheng Kung University, Tainan, 70101, Taiwan
- Hierarchical Green-Energy Materials (Hi-GEM) Research Center, National Cheng Kung University, Tainan, 70101, Taiwan
| | - Hiroshi Nishihara
- Research Institute for Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, 278-8510, Japan
| | - Ken Sakaushi
- Research Center for Energy and Environmental Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
| |
Collapse
|
49
|
Chen H, Iyer J, Liu Y, Krebs S, Deng F, Jentys A, Searles DJ, Haider MA, Khare R, Lercher JA. Mechanism of Electrocatalytic H 2 Evolution, Carbonyl Hydrogenation, and Carbon-Carbon Coupling on Cu. J Am Chem Soc 2024; 146:13949-13961. [PMID: 38739624 PMCID: PMC11117180 DOI: 10.1021/jacs.4c01911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 04/19/2024] [Accepted: 05/03/2024] [Indexed: 05/16/2024]
Abstract
Aqueous-phase electrocatalytic hydrogenation of benzaldehyde on Cu leads not only to benzyl alcohol (the carbonyl hydrogenation product), but Cu also catalyzes carbon-carbon coupling to hydrobenzoin. In the absence of an organic substrate, H2 evolution proceeds via the Volmer-Tafel mechanism on Cu/C, with the Tafel step being rate-determining. In the presence of benzaldehyde, the catalyst surface is primarily covered with the organic substrate, while H* coverage is low. Mechanistically, the first H addition to the carbonyl O of an adsorbed benzaldehyde molecule leads to a surface-bound hydroxy intermediate. The hydroxy intermediate then undergoes a second and rate-determining H addition to its α-C to form benzyl alcohol. The H additions occur predominantly via the proton-coupled electron transfer mechanism. In a parallel reaction, the radical α-C of the hydroxy intermediate attacks the electrophilic carbonyl C of a physisorbed benzaldehyde molecule to form the C-C bond, which is rate-determining. The C-C coupling is accompanied by the protonation of the formed alkoxy radical intermediate, coupled with electron transfer from the surface of Cu, to form hydrobenzoin.
Collapse
Affiliation(s)
- Hongwen Chen
- Department
of Chemistry and Catalysis Research Center, Technical University of Munich, Garching 85748, Germany
| | - Jayendran Iyer
- Renewable
Energy and Chemicals Laboratory, Department of Chemical Engineering, Indian Institute of Technology Delhi, New Delhi 110016, India
- Australian
Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane 4072, QLD, Australia
| | - Yue Liu
- Shanghai
Key Laboratory of Green Chemistry and Chemical Processes, School of
Chemistry and Molecular Engineering, East
China Normal University, Shanghai 200062, China
| | - Simon Krebs
- Department
of Chemistry and Catalysis Research Center, Technical University of Munich, Garching 85748, Germany
| | - Fuli Deng
- Department
of Chemistry and Catalysis Research Center, Technical University of Munich, Garching 85748, Germany
| | - Andreas Jentys
- Department
of Chemistry and Catalysis Research Center, Technical University of Munich, Garching 85748, Germany
| | - Debra J. Searles
- Australian
Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane 4072, QLD, Australia
- School
of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane 4072, QLD, Australia
- ARC Centre
of Excellence for Green Electrochemical Transformation of Carbon Dioxide, The University of Queensland, Brisbane 4072, QLD, Australia
| | - M. Ali Haider
- Department
of Chemistry and Catalysis Research Center, Technical University of Munich, Garching 85748, Germany
- Renewable
Energy and Chemicals Laboratory, Department of Chemical Engineering, Indian Institute of Technology Delhi, New Delhi 110016, India
- Indian
Institute of Technology Delhi−Abu Dhabi, Khalifa City B, Abu Dhabi, United Arab Emirates
| | - Rachit Khare
- Department
of Chemistry and Catalysis Research Center, Technical University of Munich, Garching 85748, Germany
| | - Johannes A. Lercher
- Department
of Chemistry and Catalysis Research Center, Technical University of Munich, Garching 85748, Germany
- Institute
for Integrated Catalysis, Pacific Northwest
National Laboratory, Richland 99352, Washington, United States
| |
Collapse
|
50
|
de Lima AFV, Lourenço ADA, Silva VD, Menezes de Oliveira AL, Rostas AM, Barbu-Tudoran L, Leostean C, Pana O, da Silva RB, Macedo DA, da Silva FF. Co 3O 4/activated carbon nanocomposites as electrocatalysts for the oxygen evolution reaction. Dalton Trans 2024; 53:8563-8575. [PMID: 38682235 DOI: 10.1039/d3dt03720g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/01/2024]
Abstract
The Oxygen Evolution Reaction (OER) is crucial in various processes such as hydrogen production via water splitting. Several electrocatalysts, including metal oxides, have been evaluated to enhance the reaction efficiency. Zeolitic Imidazolate Framework-67 (ZIF-67) has been employed as a precursor to produce Co3O4, showing high OER activity. Additionally, the formation of composites with carbon-based materials improves the activity of these materials. Thus, this work focuses on synthesizing ZIF-67 and commercial activated carbon (AC) composites, which were used as precursors to obtain Co3O4/C electrocatalysts by calculating ZIF-67/CX (X = 10, 30, and 50, the mass percentage of AC). The obtained materials were thoroughly characterized by employing X-ray powder diffraction (XRD), confirming the cobalt oxide structure with a sphere-like morphology as observed in the TEM images. The presence of oxygen vacancies was confirmed by infrared spectroscopy and EPR measurements. The electrocatalytic performance in the OER was investigated by linear sweep voltammetry (LSV), which revealed an overpotential of 325 mV at 10 mA cm-2 and a Tafel slope value of 65.32 mV dec-1 for Co3O4/C10, superior in activity to several previously reported studies in the literature and electrochemical stability of up to 8 hours. The reduced value of charge transfer resistance, high double-layer capacitance, and the presence of Co3+ ions justify the superior performance of the Co3O4/C10 electrocatalyst.
Collapse
Affiliation(s)
- Andrei F V de Lima
- Departamento de Química, Universidade Federal da Paraíba, 58051-900, João Pessoa-PB, Brazil.
| | - Annaíres de A Lourenço
- Departamento de Química, Universidade Federal da Paraíba, 58051-900, João Pessoa-PB, Brazil.
| | - Vinícius D Silva
- Programa de Pós-Graduação em Ciência e Engenharia de Materiais - PPCEM, Universidade Federal da Paraíba, 58051-900, João Pessoa-PB, Brazil
| | - André L Menezes de Oliveira
- Núcleo de Pesquisa e Extensão LACOM, Departamento de Química, Universidade Federal da Paraíba, 52051-85, João Pessoa-PB, Brazil
| | - Arpad M Rostas
- Department of Physics of Nanostructure Systems, National Institute for Research and Development of Isotopic and Molecular Technologies, 400293 Cluj-Napoca, Romania
| | - Lucian Barbu-Tudoran
- Department of Physics of Nanostructure Systems, National Institute for Research and Development of Isotopic and Molecular Technologies, 400293 Cluj-Napoca, Romania
| | - Cristian Leostean
- Department of Physics of Nanostructure Systems, National Institute for Research and Development of Isotopic and Molecular Technologies, 400293 Cluj-Napoca, Romania
| | - Ovidiu Pana
- Department of Physics of Nanostructure Systems, National Institute for Research and Development of Isotopic and Molecular Technologies, 400293 Cluj-Napoca, Romania
| | - Rodolfo B da Silva
- Programa de Pós-Graduação em Ciência e Engenharia de Materiais - PPCEM, Universidade Federal da Paraíba, 58051-900, João Pessoa-PB, Brazil
| | - Daniel A Macedo
- Programa de Pós-Graduação em Ciência e Engenharia de Materiais - PPCEM, Universidade Federal da Paraíba, 58051-900, João Pessoa-PB, Brazil
| | - Fausthon F da Silva
- Departamento de Química, Universidade Federal da Paraíba, 58051-900, João Pessoa-PB, Brazil.
| |
Collapse
|