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Li C, Kim B, Li Z, Thapa R, Zhang Y, Seo JM, Guan R, Tang F, Baek JH, Kim YH, Jeon JP, Park N, Baek JB. Direct Electroplating Ruthenium Precursor on the Surface Oxidized Nickel Foam for Efficient and Stable Bifunctional Alkaline Water Electrolysis. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2403151. [PMID: 38842511 DOI: 10.1002/adma.202403151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 06/03/2024] [Indexed: 06/07/2024]
Abstract
Water electrolysis to produce hydrogen (H2) using renewable energy is one of the most promising candidates for realizing carbon neutrality, but its reaction kinetics is hindered by sluggish anodic oxygen evolution reaction (OER). Ruthenium (Ru) in its high-valence state (oxide) provides one of the most active OER sites and is less costly, but thermodynamically unstable. The strong interaction between Ru nanoparticles (NPs) and nickel hydroxide (Ni(OH)2) is leveraged to directly form Ru-Ni(OH)2 on the surface of a porous nickel foam (NF) electrode via spontaneous galvanic replacement reaction. The formation of Ru─O─Ni bonds at the interface of the Ru NPs and Ni(OH)2 (Ru-Ni(OH)2) on the surface oxidized NF significantly enhance stability of the Ru-Ni(OH)2/NF electrode. In addition to OER, the catalyst is active enough for the hydrogen evolution reaction (HER). As a result, it is able to deliver overpotentials of 228 and 15 mV to reach 10 mA cm-2 for OER and HER, respectively. An industry-scale evaluation using Ru-Ni(OH)2/NF as both OER and HER electrodes demonstrates a high current density of 1500 mA cm-2 (OER: 410 mV; HER: 240 mV), surpassing commercial RuO2 (OER: 600 mV) and Pt/C based performance (HER: 265 mV).
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Affiliation(s)
- Changqing Li
- School of Energy and Chemical Engineering, Center for Dimension-Controllable Organic Frameworks, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919, Republic of Korea
| | - Bumseop Kim
- Department of Physics, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919, Republic of Korea
| | - Zhongping Li
- School of Energy and Chemical Engineering, Center for Dimension-Controllable Organic Frameworks, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919, Republic of Korea
| | - Ranjit Thapa
- Department of Physics, SRM University - AP, Amaravati, Andhra Pradesh, 522 502, India
| | - Yifan Zhang
- School of Environmental and Chemical Engineering, Shanghai University, 99 Shangda Road, Shanghai, 200444, China
| | - Jeong-Min Seo
- School of Energy and Chemical Engineering, Center for Dimension-Controllable Organic Frameworks, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919, Republic of Korea
| | - Runnan Guan
- School of Energy and Chemical Engineering, Center for Dimension-Controllable Organic Frameworks, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919, Republic of Korea
| | - Feng Tang
- School of Energy and Chemical Engineering, Center for Dimension-Controllable Organic Frameworks, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919, Republic of Korea
| | - Jae-Hoon Baek
- School of Energy and Chemical Engineering, Center for Dimension-Controllable Organic Frameworks, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919, Republic of Korea
| | - Young Hyun Kim
- School of Energy and Chemical Engineering, Center for Dimension-Controllable Organic Frameworks, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919, Republic of Korea
| | - Jong-Pil Jeon
- School of Energy and Chemical Engineering, Center for Dimension-Controllable Organic Frameworks, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919, Republic of Korea
| | - Noejung Park
- Department of Physics, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919, Republic of Korea
| | - Jong-Beom Baek
- School of Energy and Chemical Engineering, Center for Dimension-Controllable Organic Frameworks, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919, Republic of Korea
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2
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Kowalski RM, Banerjee A, Yue C, Gracia SG, Cheng D, Morales-Guio CG, Sautet P. Electroreduction of Captured CO 2 on Silver Catalysts: Influence of the Capture Agent and Proton Source. J Am Chem Soc 2024. [PMID: 39037349 DOI: 10.1021/jacs.4c03915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/23/2024]
Abstract
In the context of carbon reutilization, the direct electroreduction of captured CO2 (c-CO2RR) appears as an appealing approach since it avoids the energetically costly separation of CO2 from the capture agent. In this process, CO2 is directly reduced from its captured form. Here, we investigate the influence of the capture agent and proton source on that reaction from a combination of theory and experiment. Specifically, we consider methoxide-captured CO2, NH3-captured CO2, and bicarbonate on silver electrocatalysts. We show that the proton source plays a key role in the interplay of the chemistries for the electroreduction of protons, free CO2, and captured CO2. Our density functional theory calculations, including the influence of the potential, demonstrate that a proton source with smaller pKa improves the reactivity for c-CO2RR, but also increases the selectivity toward the hydrogen evolution reaction (HER) on silver surfaces. Since c-CO2RR requires an additional chemical protonation step, the influence of the proton source is stronger than that of the HER. However, c-CO2RR cannot compete with the HER on Ag, Experimentally, the dominant product observed is H2 with low amounts of CO being produced. Through a rotating cylinder electrode cell of well-defined mass-transport properties, we conclude that although methanol solvent exhibits a lower HER activity, HER remains dominant over c-CO2RR. Our work suggests that methoxide is a potential alternative capture agent to NH3 for direct reduction of captured CO2, though challenges in catalyst design, particularly in reducing the onset potential of c-CO2RR to surpass the HER, remain to be addressed.
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Affiliation(s)
- Robert Michael Kowalski
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, California 90095, United States
| | - Avishek Banerjee
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, California 90095, United States
| | - Chudi Yue
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, California 90095, United States
| | - Sara G Gracia
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, California 90095, United States
| | - Dongfang Cheng
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, California 90095, United States
| | - Carlos G Morales-Guio
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, California 90095, United States
| | - Philippe Sautet
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, California 90095, United States
- Chemistry and Biochemistry Department, University of California, Los Angeles, California 90095, United States
- California NanoSystems Institute, University of California, Los Angeles, California 90095, United States
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3
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Ahmad A, Nairan A, Feng Z, Zheng R, Bai Y, Khan U, Gao J. Unlocking the Potential of High Entropy Alloys in Electrochemical Water Splitting: A Review. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2311929. [PMID: 38396229 DOI: 10.1002/smll.202311929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 02/04/2024] [Indexed: 02/25/2024]
Abstract
The global pursuit of sustainable energy is focused on producing hydrogen through electrocatalysis driven by renewable energy. Recently, High entropy alloys (HEAs) have taken the spotlight in electrolysis due to their intriguing cocktail effect, broad design space, customizable electronic structure, and entropy stabilization effect. The tunability and complexity of HEAs allow a diverse range of active sites, optimizing adsorption strength and activity for electrochemical water splitting. This review comprehensively covers contemporary advancements in synthesis technique, design framework, and physio-chemical evaluation approaches for HEA-based electrocatalysts. Additionally, it explores design principles and strategies aimed at optimizing the catalytic activity, stability, and effectiveness of HEAs in hydrogen evolution reaction (HER), oxygen evolution reaction (OER), and overall water splitting. Through an in-depth investigation of these aspects, the complexity inherent in constituent element interactions, reaction processes, and active sites associated with HEAs is aimed to unravel. Eventually, an outlook regarding challenges and impending difficulties and an outline of the future direction of HEA in electrocatalysis is provided. The thorough knowledge offered in this review will assist in formulating and designing catalysts based on HEAs for the next generation of electrochemistry-related applications.
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Affiliation(s)
- Abrar Ahmad
- Institute of Functional Porous Materials, School of Material Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Adeela Nairan
- Institute of Functional Porous Materials, School of Material Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Zhuo Feng
- Institute of Functional Porous Materials, School of Material Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Ruiming Zheng
- Institute of Functional Porous Materials, School of Material Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Yelin Bai
- Institute of Functional Porous Materials, School of Material Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Usman Khan
- Institute of Functional Porous Materials, School of Material Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Junkuo Gao
- Institute of Functional Porous Materials, School of Material Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
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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.
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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
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5
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Saifi S, Dey G, Shakir R, Karthikeyan J, Kumar R, Bhattacharyya D, Sinha ASK, Aijaz A. Single-Atomic Co-N 4 Sites with CrCo Nanoparticles for Metal-Air Battery-Driven Hydrogen Evolution. Inorg Chem 2024; 63:7218-7232. [PMID: 38593245 DOI: 10.1021/acs.inorgchem.3c04443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/11/2024]
Abstract
Designing highly active and robust earth abundant trifunctional electrocatalysts for energy storage and conversion applications remain an enormous challenge. Herein, we report a trifunctional electrocatalyst (CrCo/CoN4@CNT-5), synthesized at low calcination temperature (550 °C), which consists of Co-N4 single atom and CrCo alloy nanoparticles and exhibits outstanding electrocatalytic performance for the hydrogen evolution reaction, oxygen evolution reaction, and oxygen reduction reaction. The catalyst is able to deliver a current density of 10 mA cm-2 in an alkaline electrolytic cell at a very low cell voltage of ∼1.60 V. When the catalyst is equipped in a liquid rechargeable Zn-air battery, it endowed a high open-circuit voltage with excellent cycling durability and outperformed the commercial Pt/C+IrO2 catalytic system. Furthermore, the Zn-air battery powered self-driven water splitting system is displayed using CrCo/CoN4@CNT-5 as sole trifunctional catalyst, delivering a high H2 evolution rate of 168 μmol h-1. Theoretical calculations reveal synergistic interaction between Co-N4 active sites and CrCo nanoparticles, favoring the Gibbs free energy for H2 evolution. The presence of Cr not only enhances the H2O adsorption and dissociation but also tunes the electronic property of CrCo nanoparticles to provide optimized hydrogen binding capacity to Co-N4 sites, thus giving rise to accelerated H2 evolution kinetics. This work highlights the importance of the presence of small quantity of Cr in enhancing the electrocatalytic activity as well as robustness of single-atom catalyst and suggests the design of the multifunctional robust electrocatalysts for long-term H2 evolution application.
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Affiliation(s)
- Shadab Saifi
- Department of Sciences & Humanities, Rajiv Gandhi Institute of Petroleum Technology (RGIPT)-Jais, Amethi, Uttar Pradesh 229304, India
| | - Gargi Dey
- Department of Sciences & Humanities, Rajiv Gandhi Institute of Petroleum Technology (RGIPT)-Jais, Amethi, Uttar Pradesh 229304, India
| | - Renna Shakir
- Department of Sciences & Humanities, Rajiv Gandhi Institute of Petroleum Technology (RGIPT)-Jais, Amethi, Uttar Pradesh 229304, India
| | - Jeyakumar Karthikeyan
- Department of Sciences & Humanities, Rajiv Gandhi Institute of Petroleum Technology (RGIPT)-Jais, Amethi, Uttar Pradesh 229304, India
- Department of Physics, National Institute of Technology, Durgapur 713209, West Bengal, India
| | - Ravi Kumar
- Atomic & Molecular Physics Division, Bhabha Atomic Research Centre, Mumbai 400094, India
| | - D Bhattacharyya
- Atomic & Molecular Physics Division, Bhabha Atomic Research Centre, Mumbai 400094, India
| | - A S K Sinha
- Department of Chemical Engineering & Biochemical Engineering, Rajiv Gandhi Institute of Petroleum Technology (RGIPT) - Jais, Amethi, Uttar Pradesh 229304, India
| | - Arshad Aijaz
- Department of Sciences & Humanities, Rajiv Gandhi Institute of Petroleum Technology (RGIPT)-Jais, Amethi, Uttar Pradesh 229304, India
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6
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Toledo-Carrillo EA, García-Rodríguez M, Sánchez-Moren LM, Dutta J. Decoupled supercapacitive electrolyzer for membrane-free water splitting. SCIENCE ADVANCES 2024; 10:eadi3180. [PMID: 38446878 PMCID: PMC10917338 DOI: 10.1126/sciadv.adi3180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 02/01/2024] [Indexed: 03/08/2024]
Abstract
Green hydrogen production via water splitting is vital for decarbonization of hard-to-abate industries. Its integration with renewable energy sources remains to be a challenge, due to the susceptibility to hazardous gas mixture during electrolysis. Here, we report a hybrid membrane-free cell based on earth-abundant materials for decoupled hydrogen production in either acidic or alkaline medium. The design combines the electrocatalytic reactions of an electrolyzer with a capacitive storage mechanism, leading to spatial/temporal separation of hydrogen and oxygen gases. An energy efficiency of 69% lower heating value (48 kWh/kg) at 10 mA/cm2 (5 cm-by-5 cm cell) was achieved using cobalt-iron phosphide bifunctional catalyst with 99% faradaic efficiency at 100 mA/cm2. Stable operation over 20 hours in alkaline medium shows no apparent electrode degradation. Moreover, the cell voltage breakdown reveals that substantial improvements can be achieved by tunning the activity of the bifunctional catalyst and improving the electrodes conductivity. The cell design offers increased flexibility and robustness for hydrogen production.
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Affiliation(s)
- Esteban A. Toledo-Carrillo
- Functional NanoMaterials Group, Department of Applied Physics, School of Engineering Sciences, KTH Royal Institute of Technology, Hannes Alfvéns väg 12, 114 19 Stockholm, Sweden
| | - Mario García-Rodríguez
- Departamento de Química Física e Instituto Universitario de Materiales, Universidad de Alicante, Ap. 99, E-03080, Alicante, Spain
| | - Lorena M. Sánchez-Moren
- Departamento de Química Inorgánica e Instituto Universitario de Materiales, Universidad de Alicante, Ap. 99, E-03080, Alicante, Spain
| | - Joydeep Dutta
- Functional NanoMaterials Group, Department of Applied Physics, School of Engineering Sciences, KTH Royal Institute of Technology, Hannes Alfvéns väg 12, 114 19 Stockholm, Sweden
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7
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Saravanan L, Anand P, Fu YP, Ma YR, Yeh WC. Enhancing the Hydrogen Evolution Performance of Tungsten Diphosphide on Carbon Fiber through Ruthenium Modification. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 38419190 DOI: 10.1021/acsami.3c17114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
Hydrogen-based energy systems hold promise for sustainable development and carbon neutrality, minimizing environmental impact with electrolysis as the preferred fossil-fuel-free hydrogen generation method. Effective electrocatalysts are required to reduce energy consumption and improve kinetics, given the need for additional voltage (overpotential, η) despite the theoretical water splitting potential of 1.23 V. To date, platinum has been acknowledged as the most effective but expensive hydrogen evolution reaction (HER) catalyst. Hence, we introduce a cost-effective (∼2-fold cheaper) ruthenium-modified tungsten diphosphide (Ru/WP2) catalyst on carbon fiber for HER in ∼0.5 M H2SO4, with η ≈ 34 mV at -10 mA cm-2 which can be comparable (only ∼2-fold higher) to benchmark Pt/C (η ≈ 17 mV). The HER performance of WP2 can be enhanced through the modification of ruthenium, as indicated by the electrochemical characterizations. Considering the Tafel value of ∼40 ± 0.2 mV dec-1, it can be inferred that Ru/WP2 follows the Volmer-Heyrovsky reaction pathway for hydrogen generation. Furthermore, the Faradaic efficiency estimation indicates that Ru/WP2 demonstrates a minimal loss of electrons during the electrochemical reaction with an estimated value of ∼98.7 ± 1.4%. Therefore, this study could emphasize the potential of the Ru/WP2 electrode in advancing sustainable hydrogen production through water splitting.
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Affiliation(s)
- Lokesh Saravanan
- Department of Physics, National Dong Hwa University, Hualien 97401, Taiwan
| | - Pandiyarajan Anand
- Department of Materials Science and Engineering, National Dong Hwa University, Hualien 97401, Taiwan
| | - Yen-Pei Fu
- Department of Materials Science and Engineering, National Dong Hwa University, Hualien 97401, Taiwan
| | - Yuan-Ron Ma
- Department of Physics, National Dong Hwa University, Hualien 97401, Taiwan
| | - Wang-Chi Yeh
- Department of Physics, National Dong Hwa University, Hualien 97401, Taiwan
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8
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Atyf Z, Lenne Q, Ghilane J. Electrografting of Phenyl Phosphate Layers onto Glassy Carbon for Tuning Catalytic Activity toward the Hydrogen Evolution Reaction. Molecules 2024; 29:835. [PMID: 38398587 PMCID: PMC10892328 DOI: 10.3390/molecules29040835] [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: 12/23/2023] [Revised: 02/08/2024] [Accepted: 02/09/2024] [Indexed: 02/25/2024] Open
Abstract
In this study, we explored the surface modification of a glassy carbon electrode through the electrografting of 4-Aminophenyl phosphate, which features heteroatoms and ionic properties. The electrochemical grafting process involves reducing in situ-generated diazonium derivatives. The primary objective of this research was to immobilize organic layers and assess their electrochemical and surface properties. Subsequently, the generated surface serves as a template for the electrochemical growth of Pd and Co nanoparticles on functionalized electrodes. The electrocatalytic performances of these hybrid electrodes in driving the hydrogen evolution reaction were investigated. The obtained results indicate an enhancement in the electrocatalytic activity of the modified electrodes, where lower overpotential and higher stability were observed when the catalyst was electrodeposited onto the attached ionic layer. These findings highlight the synergistic effect between the attached phenyl phosphate moieties and electrocatalysts.
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Affiliation(s)
| | | | - Jalal Ghilane
- Université Paris Cité, ITODYS, CNRS, UMR 7086, 15 rue J-A de Baïf, F-75013 Paris, France; (Z.A.); (Q.L.)
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9
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Ghorui UK, Show B, Roy D, Basak A, Adhikary B, Mondal A. Strategically Designed Pd-Induced Changes in Alkaline Hydrogen Evolution Reaction and Oxygen Evolution Reaction Performances of Electrochemical Water Oxidation by the Galvanically Synthesized MoO 2/MoO 3 Composite Thin Film. ACS APPLIED MATERIALS & INTERFACES 2024; 16:3460-3475. [PMID: 38224570 DOI: 10.1021/acsami.3c16499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2024]
Abstract
Electrochemical water oxidation is believed to be an effective pathway to produce clean, carbon-free, and environmentally sustainable green energy. In this work, we report a simple, easy-to-construct, facile, low-cost, and single-step galvanic technique to synthesize a Pd-supported temperature-assisted MoOx thin film nanocomposite for effective water oxidation. The most suitable nanocomposite exhibits very low overpotential at 10 mA/cm2 with smaller Tafel slope values for both hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) processes in an alkaline medium. The formation of a metal oxide-metal junction accelerates the growth of more active sites, promoting induced electronic synergism at the MoOx-Pd interface. This endows higher electrical conductivity and faster electron transfer kinetics, thus accelerating the faster water dissociation reaction following the Tafel-Volmer mechanism to boost the HER process in an alkaline medium. The excellent electrochemical HER and OER performances of our electrocatalyst even supersede the accomplishments of the benchmark catalysts Pt/C and RuO2. Moreover, neither of these two catalysts demonstrates both catalytic reactions, i.e., HER and OER at the same time, which have been observed for our synthesized catalyst. Our findings illustrate the potential of a thin-film MoOx-Pd nanocomposite to be an exceedingly effective electrocatalyst developed by interface engineering strategies. This also provides insight into designing several other semiconductor composite catalysts using simple synthesis techniques for highly efficient HER/OER processes that could be alternatives to benchmark electrocatalysts for water electrolysis.
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Affiliation(s)
- Uday Kumar Ghorui
- Indian Institute of Engineering Science and Technology, Shibpur, Howrah 711103, West Bengal, India
| | | | - Dipayan Roy
- School of Materials Science and Nanotechnology, Jadavpur University, Kolkata 700032, India
| | - Arindam Basak
- Thin Film Photovoltaic Lab, School of Electronics Engineering, KIIT-Deemed to Be University, Bhubaneswar 751024, Odisha, India
| | - Bibhutosh Adhikary
- Indian Institute of Engineering Science and Technology, Shibpur, Howrah 711103, West Bengal, India
| | - Anup Mondal
- Indian Institute of Engineering Science and Technology, Shibpur, Howrah 711103, West Bengal, India
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10
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Obeid E, Younes K. Uncovering Key Factors in Graphene Aerogel-Based Electrocatalysts for Sustainable Hydrogen Production: An Unsupervised Machine Learning Approach. Gels 2024; 10:57. [PMID: 38247780 PMCID: PMC10815819 DOI: 10.3390/gels10010057] [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: 11/18/2023] [Revised: 12/30/2023] [Accepted: 01/09/2024] [Indexed: 01/23/2024] Open
Abstract
The application of principal component analysis (PCA) as an unsupervised learning method has been used in uncovering correlations among diverse features of aerogel-based electrocatalysts. This analytical approach facilitates a comprehensive exploration of catalytic activity, revealing intricate relationships with various physical and electrochemical properties. The first two principal components (PCs), collectively capturing nearly 70% of the total variance, attested the reliability and efficacy of PCA in unveiling meaningful patterns. This study challenges the conventional understanding that a material's reactivity is solely dictated by the quantity of catalyst loaded. Instead, it unveils a complex perspective, highlighting that reactivity is intricately influenced by the material's overall design and structure. The PCA bi-plot uncovers correlations between pH and Tafel slope, suggesting an interdependence between these variables and providing valuable insights into the complex interactions among physical and electrochemical properties. Tafel slope stands to be positively correlated with PC1 and PC2, showing an evident positive correlation with the pH. These findings showed that the pH can have a positive correlation with the Tafel slope, however, it does not necessarily reflect a direct positive correlation with the overpotential. The impact of pH on current density (j)and Tafel slope underscores the importance of adjusting pH to lower overpotential effectively, enhancing catalytic activity. Surface area (from 30 to 533 m2 g-1) emerges as a key physical property, inclusively inverse correlation with overpotential, indicating its direct role in lowering overpotential and increasing catalytic activity. The introduction of PC3, in conjunction with PC1, enriches the analysis by revealing consistent trends despite a slightly lower variance (60%). This reinforces the robustness of PCA in delineating distinct characteristics of graphene aerogels, affirming their potential implications in diverse electrocatalytic applications. In summary, PCA proves to be a valuable tool for unraveling complex relationships within aerogel-based electrocatalysts, extending insights beyond catalytic sites to emphasize the broader spectrum of material properties. This approach enhances comprehension of dataset intricacies and holds promise for guiding the development of more effective and versatile electrocatalytic materials.
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Affiliation(s)
- Emil Obeid
- College of Engineering and Technology, American University of the Middle East, Egaila 54200, Kuwait
| | - Khaled Younes
- College of Engineering and Technology, American University of the Middle East, Egaila 54200, Kuwait
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11
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Khan MH, Han C, Wang X, Li W, Zhang G, Huang Z. Synthesis of Silver Nanoparticles from Silver Closo-Dodecaborate Film for Enhanced Hydrogen Evolution. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023:e2305117. [PMID: 37963822 DOI: 10.1002/smll.202305117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2023] [Revised: 10/30/2023] [Indexed: 11/16/2023]
Abstract
The icosahedral closo dodecaborate cluster [B12 H12 ]2- is gaining increasing interest due to its unique properties including the ease of functionalization, 3D aromaticity, and formation of metal salts with high ion conductivity. In this work, simple and effective preparation of silver closo dodecaborte (Ag2 B12 H12 ) films is reported by an electrochemical route. The size of the Ag2 B12 H12 particles in the films can be tuned from nanometers to micrometers by varying the electrochemical parameters. Ag nanoclusters with controllable sizes are successfully generated via electrochemical reduction reactions or thermal anneal of the Ag2 B12 H12 films. When tested for hydrogen evolution reaction (HER) in an acidic solution, the as-prepared Ag nanoparticles deliver a current density of 10 mA cm-2 at 376 mV overpotential. This research sheds light on a new synthesis of [B12 H12 ]2- based thin films, the generation of metal nano-powders, and their application in HER or other applications.
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Affiliation(s)
- Majharul Haque Khan
- School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW, 2007, Australia
| | - Chao Han
- School of Materials Science and Engineering, Central South University, Hunan, 410083, P. R. China
- Powder Metallurgy Research Institute, Central South University, Hunan, 410083, P. R. China
| | - Xuefei Wang
- School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW, 2007, Australia
| | - Weijie Li
- Powder Metallurgy Research Institute, Central South University, Hunan, 410083, P. R. China
| | - Guojin Zhang
- School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW, 2007, Australia
| | - Zhenguo Huang
- School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW, 2007, Australia
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12
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Choi H, Seo S, Yoon CJ, Ahn J, Kim C, Jung Y, Kim Y, Toma FM, Kim H, Lee S. Organometal Halide Perovskite-Based Photoelectrochemical Module Systems for Scalable Unassisted Solar Water Splitting. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2303106. [PMID: 37752753 PMCID: PMC10667810 DOI: 10.1002/advs.202303106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 08/09/2023] [Indexed: 09/28/2023]
Abstract
Despite achievements in the remarkable photoelectrochemical (PEC) performance of photoelectrodes based on organometal halide perovskites (OHPs), the scaling up of small-scale OHP-based PEC systems to large-scale systems remains a great challenge for their practical application in solar water splitting. Significant resistive losses and intrinsic defects are major obstacles to the scaling up of OHP-based PEC systems, leading to the PEC performance degradation of large-scale OHP photoelectrodes. Herein, a scalable design of the OHP-based PEC systems by modularization of the optimized OHP photoelectrodes exhibiting a high solar-to-hydrogen conversion efficiency of 10.4% is suggested. As a proof-of-concept, the OHP-based PEC module achieves an optimal PEC performance by avoiding major obstacles in the scaling up of the OHP photoelectrodes. The constructed OHP module is composed of a total of 16 OHP photoelectrodes, and a photocurrent of 11.52 mA is achieved under natural sunlight without external bias. The successful operation of unassisted solar water splitting using the OHP module without external bias can provide insights into the design of scalable OHP-based PEC systems for future practical application and commercialization.
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Affiliation(s)
- Hojoong Choi
- School of Materials Science and EngineeringGwangju Institute of Science and TechnologyGwangju61005Republic of Korea
| | - Sehun Seo
- Chemical Sciences DivisionLawrence Berkeley National Laboratory1 Cyclotron RoadBerkeleyCA94720USA
- Liquid Sunlight AllianceLawrence Berkeley National Laboratory1 Cyclotron RoadBerkeleyCA94720USA
- Institute of Functional Materials for SustainabilityHelmholtz‐Zentrum HereonKantstraße 5514513TeltowGermany
| | - Chang Jae Yoon
- Research Institute for Solar and Sustainable EnergiesGwangju Institute of Science and TechnologyGwangju61005Republic of Korea
| | - Jae‐Bin Ahn
- Research Institute for Solar and Sustainable EnergiesGwangju Institute of Science and TechnologyGwangju61005Republic of Korea
| | - Chan‐Sol Kim
- Research Institute for Solar and Sustainable EnergiesGwangju Institute of Science and TechnologyGwangju61005Republic of Korea
| | - Yoonsung Jung
- School of Materials Science and EngineeringGwangju Institute of Science and TechnologyGwangju61005Republic of Korea
| | - Yejoon Kim
- School of Materials Science and EngineeringGwangju Institute of Science and TechnologyGwangju61005Republic of Korea
| | - Francesca M. Toma
- Chemical Sciences DivisionLawrence Berkeley National Laboratory1 Cyclotron RoadBerkeleyCA94720USA
- Liquid Sunlight AllianceLawrence Berkeley National Laboratory1 Cyclotron RoadBerkeleyCA94720USA
- Institute of Functional Materials for SustainabilityHelmholtz‐Zentrum HereonKantstraße 5514513TeltowGermany
| | - Heejoo Kim
- Research Institute for Solar and Sustainable EnergiesGwangju Institute of Science and TechnologyGwangju61005Republic of Korea
- Graduate School of Energy ConvergenceInstitute of Integrated Technology, Gwangju Institute of Science and TechnologyGwangju61005Republic of Korea
| | - Sanghan Lee
- School of Materials Science and EngineeringGwangju Institute of Science and TechnologyGwangju61005Republic of Korea
- Research Center for Innovative Energy and Carbon Optimized Synthesis for Chemicals (Inn‐ECOSysChem)Gwangju Institute of Science and TechnologyGwangju61005Republic of Korea
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13
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Cencerrero J, Sánchez P, de Lucas-Consuegra A, de la Osa A, Romero A. Influence of boron doping level and calcination temperature on hydrogen evolution reaction in acid medium of metal-free graphene aerogels. Heliyon 2023; 9:e20748. [PMID: 37876428 PMCID: PMC10590791 DOI: 10.1016/j.heliyon.2023.e20748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 09/29/2023] [Accepted: 10/05/2023] [Indexed: 10/26/2023] Open
Abstract
In this work, metal-free boron-doped graphene-based aerogels were successfully synthesized via a one-step autoclave assembly followed by freeze-drying and used as electrocatalysts for the hydrogen evolution reaction (HER) in acidic media. The synthesized reduced graphene oxide aerogels (rGOA) showed improved electrocatalytic activity by introducing boron and structural defects. The amount of boric acid used both as a dopant and reducing agent in the synthesis was optimized (boric acid/GO mass ratio = 17.5) to practically reach the crystallization limit of boric acid (boric acid/GO mass ratio = 20). It was observed that the higher the amount of boric acid added, the more boron was incorporated into the carbonaceous structure, improving the electrocatalytic activity of the final aerogel. Furthermore, calcination of the boron-doped electrocatalyst at 600 °C resulted in final aerogels with low oxygen content, moderate surface area, bimodal pore size distribution, and a high electrochemical active surface area. The final 3D graphene aerogel developed in this work, showed such outstanding electrocatalytic activity in HER as to replace noble metal-based electrocatalysts in the future.
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Affiliation(s)
- J. Cencerrero
- Department of Chemical Engineering, Technical School of Agronomic Engineers. University of Castilla-La Mancha, Avda. Camilo José Cela 12, 13071, Ciudad Real, Spain
| | - P. Sánchez
- Department of Chemical Engineering, Technical School of Agronomic Engineers. University of Castilla-La Mancha, Avda. Camilo José Cela 12, 13071, Ciudad Real, Spain
| | - A. de Lucas-Consuegra
- Department of Chemical Engineering, Technical School of Agronomic Engineers. University of Castilla-La Mancha, Avda. Camilo José Cela 12, 13071, Ciudad Real, Spain
| | - A.R. de la Osa
- Department of Chemical Engineering, Technical School of Agronomic Engineers. University of Castilla-La Mancha, Avda. Camilo José Cela 12, 13071, Ciudad Real, Spain
| | - A. Romero
- Faculty of Chemical Sciences and Technologies, Technical School of Agronomic Engineers. University of Castilla-La Mancha, Avda. Camilo José Cela 12, 13071, Ciudad Real, Spain
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14
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Pan Y, Wang X, Lin H, Xia Q, Jing M, Yuan W, Ming Li C. Three-dimensional Ni foam supported NiCoO 2@Co 3O 4 nanowire-on-nanosheet arrays with rich oxygen vacancies as superior bifunctional catalytic electrodes for overall water splitting. NANOSCALE 2023; 15:14068-14080. [PMID: 37581290 DOI: 10.1039/d3nr02302h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/16/2023]
Abstract
Earth abundant transition metal oxide (EATMO)-based bifunctional catalysts for overall water splitting are highly desirable, but their performance is far from satisfactory due to low intrinsic activities of EATMOs toward electrocatalysis of both oxygen and hydrogen evolution reactions and poor electron transfer and transport capabilities. A three-dimensional (3-D) Ni-foam-supported NiCoO2@Co3O4 nanowire-on-nanosheet heterostructured array with rich oxygen vacancies has been synthesized, showing OER activity superior to most reported catalysts and even much higher than Ru and Ir-based ones and HER activity among the highest reported for non-noble-metal-based catalysts. The excellent activities are ascribed to the highly dense, ultrathin nanowire arrays epitaxially grown on an interconnected layered nanosheet array greatly facilitating electron transfer and providing numerous electrochemically accessible active sites and the high content of oxygen vacancies on nanowires greatly promoting OER and HER. When adopted as bifunctional electrodes for overall water splitting, this heterostructure shows an overvoltage (at 10 mA cm-2) lower than most reported electrolyzers and high stability. This work not only creates a 3-D EATMO-based integrated heterostructure as a low-cost, highly efficient bifunctional catalytic electrode for water splitting, but also provides a novel strategy to use unique heteronanostructures with rich surface defects for synergistically enhancing electrocatalytic activities.
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Affiliation(s)
- Yixiang Pan
- Ningbo Innovation Centre, Zhejiang University, Ningbo 315100, China.
| | - Xiaoyan Wang
- Research Center for Environmental and Energy Catalysis, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Hua Lin
- School of Materials & Energy, Southwest University, Chongqing 400715, China
| | - Qinghua Xia
- Ningbo Innovation Centre, Zhejiang University, Ningbo 315100, China.
| | - Maoxiang Jing
- Institute for Advanced Materials, Jiangsu University, Zhenjiang 212000, China
| | - Weiyong Yuan
- Ningbo Innovation Centre, Zhejiang University, Ningbo 315100, China.
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Chang Ming Li
- Institute of Materials Science and Devices, Suzhou University of Science and Technology, Suzhou 215009, China
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15
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Park CE, Jeong GH, Theerthagiri J, Lee H, Choi MY. Moving beyond Ti 2C 3T x MXene to Pt-Decorated TiO 2@TiC Core-Shell via Pulsed Laser in Reshaping Modification for Accelerating Hydrogen Evolution Kinetics. ACS NANO 2023; 17:7539-7549. [PMID: 36876982 DOI: 10.1021/acsnano.2c12638] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Phase engineering of nanocatalysts on specific facets is critical not only for enhancing catalytic activity but also for intensely understanding the impact of facet-based phase engineering on electrocatalytic reactions. In this study, we successfully reshaped a two-dimensional (2D) MXene (Ti3C2Tx) obtained by etching Ti3AlC2 MAX via a pulsed laser irradiation in liquid (PLIL) process. We produced a TiO2@TiC core-shell structure in spheres with sizes of 200-350 nm, and then ∼2 nm ultrasmall Pt NPs were decorated on the surface of the TiO2@TiC core-shell using the single-step PLIL method. These advances allow for a significant increase in electrocatalytic hydrogen evolution reaction (HER) activity under visible light illumination. The effect of optimal Pt loading on PLIL time was identified, and the resulting Pt/TiO2@TiC/Pt-5 min sample demonstrated outstanding electrochemical and photoelectrochemical performance. The photoelectrochemical HER activity over Pt/TiO2@TiC/Pt-5 min catalyst exhibits a low overpotential of 48 mV at 10 mA/cm2 and an ultralow Tafel slope of 54.03 mV/dec with excellent stability of over 50 h, which is hydrogen production activity even superior to that of the commercial Pt/C catalysts (55 mV, 62.45 mV/dec). This investigation not only serves as a potential for laser-dependent phase engineering but also provides a reliable strategy for the rational design and fabrication of highly effective nanocatalysts.
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Affiliation(s)
- Chae Eun Park
- Department of Chemistry (BK21 FOUR), Research Institute of Natural Sciences, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Gyoung Hwa Jeong
- Core-Facility Center for Photochemistry & Nanomaterials, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Jayaraman Theerthagiri
- Department of Chemistry (BK21 FOUR), Research Institute of Natural Sciences, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Hyeyeon Lee
- Department of Chemistry (BK21 FOUR), Research Institute of Natural Sciences, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Myong Yong Choi
- Department of Chemistry (BK21 FOUR), Research Institute of Natural Sciences, Gyeongsang National University, Jinju 52828, Republic of Korea
- Core-Facility Center for Photochemistry & Nanomaterials, Gyeongsang National University, Jinju 52828, Republic of Korea
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16
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Parvin S, Bothra N, Dutta S, Maji M, Mura M, Kumar A, Chaudhary DK, Rajput P, Kumar M, Pati SK, Bhattacharyya S. Inverse 'intra-lattice' charge transfer in nickel-molybdenum dual electrocatalysts regulated by under-coordinating the molybdenum center. Chem Sci 2023; 14:3056-3069. [PMID: 36937581 PMCID: PMC10016623 DOI: 10.1039/d2sc04617b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Accepted: 02/20/2023] [Indexed: 02/23/2023] Open
Abstract
The prevalence of intermetallic charge transfer is a marvel for fine-tuning the electronic structure of active centers in electrocatalysts. Although Pauling electronegativity is the primary deciding factor for the direction of charge transfer, we report an unorthodox intra-lattice 'inverse' charge transfer from Mo to Ni in two systems, Ni73Mo alloy electrodeposited on Cu nanowires and NiMo-hydroxide (Ni : Mo = 5 : 1) on Ni foam. The inverse charge transfer deciphered by X-ray absorption fine structure studies and X-ray photoelectron spectroscopy has been understood by the Bader charge and projected density of state analyses. The undercoordinated Mo-center pushes the Mo 4d-orbitals close to the Fermi energy in the valence band region while Ni 3d-orbitals lie in the conduction band. Since electrons are donated from the electron-rich Mo-center to the electron-poor Ni-center, the inverse charge transfer effect navigates the Mo-center to become positively charged and vice versa. The reverse charge distribution in Ni73Mo accelerates the electrochemical hydrogen evolution reaction in alkaline and acidic media with 0.35 and 0.07 s-1 turnover frequency at -33 ± 10 and -54 ± 8 mV versus the reversible hydrogen electrode, respectively. The corresponding mass activities are 10.5 ± 2 and 2.9 ± 0.3 A g-1 at 100, and 54 mV overpotential, respectively. Anodic potential oxidizes the Ni-center of NiMo-hydroxide for alkaline water oxidation with 0.43 O2 s-1 turnover frequency at 290 mV overpotential. This extremely durable homologous couple achieves water and urea splitting with cell voltages of 1.48 ± 0.02 and 1.32 ± 0.02 V, respectively, at 10 mA cm-2.
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Affiliation(s)
- Sahanaz Parvin
- Department of Chemical Sciences and Centre for Advanced Functional Materials, Indian Institute of Science Education and Research (IISER) Kolkata Mohanpur 741246 India
| | - Neha Bothra
- Theoretical Sciences Unit, School of Advanced Materials, Jawaharlal Nehru Centre for Advanced Scientific Research Bangalore 560064 India
| | - Supriti Dutta
- Theoretical Sciences Unit, School of Advanced Materials, Jawaharlal Nehru Centre for Advanced Scientific Research Bangalore 560064 India
| | - Mamoni Maji
- Department of Chemical Sciences and Centre for Advanced Functional Materials, Indian Institute of Science Education and Research (IISER) Kolkata Mohanpur 741246 India
| | - Maglu Mura
- Department of Chemical Sciences and Centre for Advanced Functional Materials, Indian Institute of Science Education and Research (IISER) Kolkata Mohanpur 741246 India
| | - Ashwani Kumar
- Department of Chemical Sciences and Centre for Advanced Functional Materials, Indian Institute of Science Education and Research (IISER) Kolkata Mohanpur 741246 India
| | - Dhirendra K Chaudhary
- Department of Chemical Sciences and Centre for Advanced Functional Materials, Indian Institute of Science Education and Research (IISER) Kolkata Mohanpur 741246 India
- Centre for Renewable Energy, Prof. Rajendra Singh (Rajju Bhaiya) Institute of Physical Sciences for Study and Research, V. B. S. Purvanchal University Jaunpur 222003 India
| | - Parasmani Rajput
- Beamline Development and Application Section, Bhabha Atomic Research Center Trombay Mumbai 400085 India
- Homi Bhabha National Institute Anushakti Nagar Mumbai-400094 India
| | - Manvendra Kumar
- Department of Physics, Institute of Science, Shri Vaishnav Vidyapeeth Viswavidyalaya Indore 453111 India
| | - Swapan K Pati
- Theoretical Sciences Unit, School of Advanced Materials, Jawaharlal Nehru Centre for Advanced Scientific Research Bangalore 560064 India
| | - Sayan Bhattacharyya
- Department of Chemical Sciences and Centre for Advanced Functional Materials, Indian Institute of Science Education and Research (IISER) Kolkata Mohanpur 741246 India
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17
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Pratama DSA, Haryanto A, Lee CW. Heterostructured mixed metal oxide electrocatalyst for the hydrogen evolution reaction. Front Chem 2023; 11:1141361. [PMID: 36998571 PMCID: PMC10043228 DOI: 10.3389/fchem.2023.1141361] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Accepted: 03/01/2023] [Indexed: 03/15/2023] Open
Abstract
The hydrogen evolution reaction (HER) has attracted considerable attention lately because of the high energy density and environmental friendliness of hydrogen energy. However, lack of efficient electrocatalysts and high price hinder its wide application. Compared to a single-phase metal oxide catalyst, mixed metal oxide (MMO) electrocatalysts emerge as a potential HER catalyst, especially providing heterostructured interfaces that can efficiently overcome the activation barrier for the hydrogen evolution reaction. In this mini-review, several design strategies for the synergistic effect of the MMO catalyst on the HER are summarized. In particular, metal oxide/metal oxide and metal/metal oxide interfaces are explained with fundamental mechanistic insights. Finally, existing challenges and future perspectives for the HER are discussed.
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18
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New Insights into the Surfactant-Assisted Liquid-Phase Exfoliation of Bi2S3 for Electrocatalytic Applications. Catalysts 2023. [DOI: 10.3390/catal13030551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2023] Open
Abstract
During water electrolysis, adding an electrocatalyst for the hydrogen evolution reaction (HER) is necessary to reduce the activation barrier and thus enhance the reaction rate. Metal chalcogenide-based 2D nanomaterials have been studied as an alternative to noble metal electrocatalysts because of their interesting electrocatalytic properties and low costs of production. However, the difficulty in improving the catalytic efficiency and industrializing the synthetic methods have become a problem in the potential application of these species in electrocatalysis. Liquid-phase exfoliation (LPE) is a low-cost and scalable technique for lab- and industrial-scale synthesis of 2D-material colloidal inks. In this work, we present, to the best of our knowledge, for the first time a systematic study on the surfactant-assisted LPE of bulk Bi2S3 crystalline powder to produce nanosheets (NSs). Different dispersing agents and LPE conditions have been tested in order to obtain colloidal low-dimensional Bi2S3 NSs in H2O at optimized concentrations. Eventually, colloidally stable layered nano-sized Bi2S3 suspensions can be produced with yields of up to ~12.5%. The thus obtained low-dimensional Bi2S3 is proven to be more active for HER than the bulk starting material, showing an overpotential of only 235 mV and an optimized Tafel slope of 125 mV/dec. Our results provide a facile top-down method to produce nano-sized Bi2S3 through a green approach and demonstrate that this material can have a good potential as electrocatalyst for HER.
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19
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Ray U, Sarkar S, Banerjee D. Silicon Nanowires as an Efficient Material for Hydrogen Evolution through Catalysis: A Review. Catal Today 2022. [DOI: 10.1016/j.cattod.2022.11.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
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20
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Aqueel Ahmed AT, Sekar S, Lee S, Im H, Preethi V, Ansari AS. Nitrogen-doped cobalt sulfide as an efficient electrocatalyst for hydrogen evolution reaction in alkaline and acidic media. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 2022; 47:40340-40348. [DOI: 10.1016/j.ijhydene.2022.04.076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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21
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Xi F, Bozheyev F, Han X, Rusu M, Rappich J, Abdi FF, Bogdanoff P, Kaltsoyannis N, Fiechter S. Enhancing Hydrogen Evolution Reaction via Synergistic Interaction between the [Mo 3S 13] 2- Cluster Co-Catalyst and WSe 2 Photocathode. ACS APPLIED MATERIALS & INTERFACES 2022; 14:52815-52824. [PMID: 36379472 PMCID: PMC9716521 DOI: 10.1021/acsami.2c14312] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Accepted: 10/12/2022] [Indexed: 06/16/2023]
Abstract
A thiomolybdate [Mo3S13]2- nanocluster is a promising catalyst for hydrogen evolution reaction (HER) due to the high number of active edge sites. In this work, thiomolybdate cluster films are prepared by spin-coating of a (NH4)2Mo3S13 solution both on FTO glass substrates as hydrogen evolving electrodes and on highly 00.1-textured WSe2 for photoelectrochemical water splitting. As an electrocatalyst, [Mo3S13]2- clusters demonstrate a low overpotential of 220 mV at 10 mA cm-2 in 0.5 M H2SO4 electrolyte (pH 0.3) and remain structurally stable during the electrochemical cycling as revealed by in situ Raman spectroscopy. Moreover, as a co-catalyst on WSe2, [Mo3S13]2- clusters enhance the photocurrent substantially by more than two orders of magnitude (from 0.02 to 2.8 mA cm-2 at 0 V vs RHE). The synergistic interactions between the photoelectrode and catalyst, i.e., surface passivation and band bending modification by the [Mo3S13]2- cluster film, promoted HER catalytic activity of [Mo3S13]2- clusters influenced by the WSe2 support, are revealed by intensity-modulated photocurrent spectroscopy and density functional theory calculations, respectively. The band alignment of the WSe2/[Mo3S13]2- heterojunction, which facilitates the electron injection, is determined by correlating UV-vis with photoelectron yield spectroscopy results.
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Affiliation(s)
- Fanxing Xi
- Institute
for Solar Fuels, Helmholtz-Zentrum Berlin
für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109Berlin, Germany
- PV
ComB, Helmholtz-Zentrum Berlin für
Materialien und Energie GmbH, Schwarzschildstrasse 3, 12489Berlin, Germany
| | - Farabi Bozheyev
- Institute
for Solar Fuels, Helmholtz-Zentrum Berlin
für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109Berlin, Germany
- Institute
of Photoelectrochemistry, Helmholtz-Zentrum
Hereon, 21502Geesthacht, Germany
- National
Nanolaboratory, al-Farabi Kazakh National
University, 71 al-Farabi
Ave., 050000Almaty, Kazakhstan
| | - Xiaoyu Han
- Department
of Chemistry, The University of Manchester, Oxford Road, ManchesterM13 9PL, U.K.
| | - Marin Rusu
- Department
Structure and Dynamics of Energy Materials, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109Berlin, Germany
| | - Jörg Rappich
- Institute
Silicon Photovoltaics, Helmholtz-Zentrum
Berlin für Materialien und Energie GmbH, Magnusstrasse 12, 12489Berlin, Germany
| | - Fatwa F. Abdi
- Institute
for Solar Fuels, Helmholtz-Zentrum Berlin
für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109Berlin, Germany
| | - Peter Bogdanoff
- Institute
for Solar Fuels, Helmholtz-Zentrum Berlin
für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109Berlin, Germany
| | - Nikolas Kaltsoyannis
- Department
of Chemistry, The University of Manchester, Oxford Road, ManchesterM13 9PL, U.K.
| | - Sebastian Fiechter
- Institute
for Solar Fuels, Helmholtz-Zentrum Berlin
für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109Berlin, Germany
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22
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Metal-free oleic acid-derived carbon dots as efficient catalysts for hydrogen evolution reaction. J APPL ELECTROCHEM 2022. [DOI: 10.1007/s10800-022-01780-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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23
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Aykut Y, Bayrakçeken Yurtcan A. The role of the Pd ratio in increasing the activity of Pt for high efficient hydrogen evolution reaction. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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24
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Nguyen ET, Bertini IA, Ritz AJ, Lazenby RA, Mao K, McBride JR, Mattia AV, Kuszynski JE, Wenzel SF, Bennett SD, Strouse GF. A Single Source, Scalable Route for Direct Isolation of Earth-Abundant Nanometal Carbide Water-Splitting Electrocatalysts. Inorg Chem 2022; 61:13836-13845. [PMID: 36007248 DOI: 10.1021/acs.inorgchem.2c01713] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Single-phase MxCs (M = Fe, Co, and Ni) were prepared by solvothermal conversion of Prussian blue single source precursors. The single source precursor is prepared in water, and the conversion process is carried out in alkylamines at reaction temperatures above 200 °C. The reaction is scalable using a commercial source of Fe-PB. High-resolution transmission electron microscopy, X-ray photoelectron microscopy, and powder X-ray diffraction confirm that carbides have thin oxide termination but lack graphitic surfaces. Electrocatalytic activity reveals that Fe3C and Co2C are oxygen evolution reaction electrocatalysts, while Ni3C is a bifunctional [OER and hydrogen evolution reaction (HER)] electrocatalyst.
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Affiliation(s)
- Edward T Nguyen
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Isabella A Bertini
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Amanda J Ritz
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Robert A Lazenby
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Keyou Mao
- Department of Industrial and Manufacturing Engineering, FAMU-FSU College of Engineering, Tallahassee, Florida 32310, United States.,National High Magnetic Field Laboratory, Tallahassee, Florida 32310, United States
| | - James R McBride
- Vanderbilt Institute of Nanoscale Science and Engineering, Nashville, Tennessee 37235, United States
| | - Alexzandra V Mattia
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Jason E Kuszynski
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Samuel F Wenzel
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Sarah D Bennett
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Geoffrey F Strouse
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
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25
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Fratilescu I, Lascu A, Taranu BO, Epuran C, Birdeanu M, Macsim AM, Tanasa E, Vasile E, Fagadar-Cosma E. One A 3B Porphyrin Structure-Three Successful Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:1930. [PMID: 35683785 PMCID: PMC9182125 DOI: 10.3390/nano12111930] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 05/26/2022] [Accepted: 06/03/2022] [Indexed: 11/16/2022]
Abstract
Porphyrins are versatile structures capable of acting in multiple ways. A mixed substituted A3B porphyrin, 5-(3-hydroxy-phenyl)-10,15,20-tris-(3-methoxy-phenyl)-porphyrin and its Pt(II) complex, were synthesised and fully characterised by 1H- and 13C-NMR, TLC, UV-Vis, FT-IR, fluorescence, AFM, TEM and SEM with EDX microscopy, both in organic solvents and in acidic mediums. The pure compounds were used, firstly, as sensitive materials for sensitive and selective optical and fluorescence detection of hydroquinone with the best results in the range 0.039-6.71 µM and a detection limit of 0.013 µM and, secondly, as corrosion inhibitors for carbon-steel (OL) in an acid medium giving a best performance of 88% in the case of coverings with Pt-porphyrin. Finally, the electrocatalytic activity for the hydrogen and oxygen evolution reactions (HER and OER) of the free-base and Pt-metalated A3B porphyrins was evaluated in strong alkaline and acidic electrolyte solutions. The best results were obtained for the electrode modified with the metalated porphyrin, drop-casted on a graphite substrate from an N,N-dimethylformamide solution. In the strong acidic medium, the electrode displayed an HER overpotential of 108 mV, at i = -10 mA/cm2 and a Tafel slope value of 205 mV/dec.
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Affiliation(s)
- Ion Fratilescu
- Institute of Chemistry "Coriolan Dragulescu", Mihai Viteazu Ave. 24, 300223 Timisoara, Romania
| | - Anca Lascu
- Institute of Chemistry "Coriolan Dragulescu", Mihai Viteazu Ave. 24, 300223 Timisoara, Romania
| | - Bogdan Ovidiu Taranu
- National Institute for Research and Development in Electrochemistry and Condensed Matter, Plautius Andronescu Street 1, 300224 Timisoara, Romania
| | - Camelia Epuran
- Institute of Chemistry "Coriolan Dragulescu", Mihai Viteazu Ave. 24, 300223 Timisoara, Romania
| | - Mihaela Birdeanu
- National Institute for Research and Development in Electrochemistry and Condensed Matter, Plautius Andronescu Street 1, 300224 Timisoara, Romania
| | - Ana-Maria Macsim
- Institute of Macromolecular Chemistry "Petru Poni", Grigore Ghica Vodă Alley, No. 41A, 700487 Iasi, Romania
| | - Eugenia Tanasa
- Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Splaiul Independentei 313, Sector 6, 060042 Bucharest, Romania
| | - Eugeniu Vasile
- Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Splaiul Independentei 313, Sector 6, 060042 Bucharest, Romania
| | - Eugenia Fagadar-Cosma
- Institute of Chemistry "Coriolan Dragulescu", Mihai Viteazu Ave. 24, 300223 Timisoara, Romania
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26
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Abbasi P, Barone MR, de la Paz Cruz-Jáuregui M, Valdespino-Padilla D, Paik H, Kim T, Kornblum L, Schlom DG, Pascal TA, Fenning DP. Ferroelectric Modulation of Surface Electronic States in BaTiO 3 for Enhanced Hydrogen Evolution Activity. NANO LETTERS 2022; 22:4276-4284. [PMID: 35500055 DOI: 10.1021/acs.nanolett.2c00047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Ferroelectric nanomaterials offer the promise of switchable electronic properties at the surface, with implications for photo- and electrocatalysis. Studies to date on the effect of ferroelectric surfaces in electrocatalysis have been primarily limited to nanoparticle systems where complex interfaces arise. Here, we use MBE-grown epitaxial BaTiO3 thin films with atomically sharp interfaces as model surfaces to demonstrate the effect of ferroelectric polarization on the electronic structure, intermediate binding energy, and electrochemical activity toward the hydrogen evolution reaction (HER). Surface spectroscopy and ab initio DFT+U calculations of the well-defined (001) surfaces indicate that an upward polarized surface reduces the work function relative to downward polarization and leads to a smaller HER barrier, in agreement with the higher activity observed experimentally. Employing ferroelectric polarization to create multiple adsorbate interactions over a single electrocatalytic surface, as demonstrated in this work, may offer new opportunities for nanoscale catalysis design beyond traditional descriptors.
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Affiliation(s)
- Pedram Abbasi
- Department of NanoEngineering, University of California San Diego, La Jolla, California 92093, United States
| | - Matthew R Barone
- Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Ma de la Paz Cruz-Jáuregui
- Centro de Nanociencias y Nanotecnología (CNyN)-Universidad Nacional Autónoma de México (UNAM) Km 107, Carretera Tijuana-Ensenada Ensenada B.C., C.P 22800, Mexico
| | - Duilio Valdespino-Padilla
- Centro de Nanociencias y Nanotecnología (CNyN)-Universidad Nacional Autónoma de México (UNAM) Km 107, Carretera Tijuana-Ensenada Ensenada B.C., C.P 22800, Mexico
- Universidad Autónoma de Baja California (UABC), Km 107, Carretera Tijuana-Ensenada Ensenada B.C., C.P 22800, Mexico
| | - Hanjong Paik
- Platform for the Accelerated Realization, Analysis & Discovery of Interface Materials (PARADIM), Cornell University, Ithaca, New York 14853, United States
| | - Taewoo Kim
- Chemical Engineering Program, Department of Nanoengineering, University of California San Diego, La Jolla, California 92093, United States
| | - Lior Kornblum
- Andrew & Erna Viterbi Department of Electrical & Computer Engineering, Technion─Israel Institute of Technology, Haifa 32000-03, Israel
- The Nancy & Stephen Grand Technion Energy Program, Technion─Israel Institute of Technology, Haifa 32000-03, Israel
| | - Darrell G Schlom
- Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853, United States
- Kavli Institute at Cornell for Nanoscale Science, Ithaca, New York 14853, United States
- Leibniz-Institut für Kristallzüchtung, Max-Born-Straße 2, 12489 Berlin, Germany
| | - Tod A Pascal
- Department of NanoEngineering, University of California San Diego, La Jolla, California 92093, United States
| | - David P Fenning
- Department of NanoEngineering, University of California San Diego, La Jolla, California 92093, United States
- Chemical Engineering Program, Department of Nanoengineering, University of California San Diego, La Jolla, California 92093, United States
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27
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Zeng Q, Tian S, Liu G, Yang H, Sun X, Wang D, Huang J, Yan D, Peng S. Sulfur-Bridged Bonds Boost the Conversion Reaction of the Flexible Self-Supporting MnS@MXene@CNF Anode for High-Rate and Long-Life Lithium-Ion Batteries. ACS APPLIED MATERIALS & INTERFACES 2022; 14:6958-6966. [PMID: 35080865 DOI: 10.1021/acsami.1c24417] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Manganese sulfide (MnS) has been found to be a suitable electrode material for lithium-ion batteries (LIBs) owing to its considerable theoretical capacity, high electrochemical activity, and low discharge voltage platform, while its poor electrical conductivity and severe pulverization caused by volume expansion of the material limit its practical application. To improve the rate performance and cycle stability of MnS in LIBs, the structure-control strategy has been used to design and fabricate new anode materials. Herein, the MnS@MXene@CNF (MMC, CNFs means carbon nanofibers) electrode has been prepared by electrospinning and a subsequent high-temperature annealing process. The MMC electrode exhibits excellent cyclic stability with a capacity retention rate close to 100% after 1000 cycles at 1000 mA/g and an improved rate performance with a specific capacity up to 500 mAh/g at a high current density of 5000 mA/g, much higher than the 308 mAh/g of the MnS@CNF (MC) electrode. The elevated electrochemical performance of the MMC electrode not only benefits from the unique structure of MnS nanoparticles evenly dispersed in the well-designed flexible self-supporting three-dimensional (3D) CNF network but, more importantly, also benefits from the formation of sulfur-bridged Mn-S-C bonds at the MnS/MXene interface. The newly formed bonds between MnS and MXene nanosheets can stabilize the structure of MnS near the interfaces and provide a channel for fast charge transfer, which notably increase both the reversibility and the rate of the conversion reaction during the charge/discharge process. This work may pave a new path for designing stable and self-supporting anodes for high-performance LIBs.
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Affiliation(s)
- Qi Zeng
- National & Local Joint Engineering Laboratory for Optical Conversion Materials and Technology, School of Materials and Energy, Lanzhou University, Lanzhou 730000, China
| | - Shuhao Tian
- National & Local Joint Engineering Laboratory for Optical Conversion Materials and Technology, School of Materials and Energy, Lanzhou University, Lanzhou 730000, China
| | - Guo Liu
- School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China
| | - Hongcen Yang
- National & Local Joint Engineering Laboratory for Optical Conversion Materials and Technology, School of Materials and Energy, Lanzhou University, Lanzhou 730000, China
| | - Xiao Sun
- National & Local Joint Engineering Laboratory for Optical Conversion Materials and Technology, School of Materials and Energy, Lanzhou University, Lanzhou 730000, China
| | - Di Wang
- National & Local Joint Engineering Laboratory for Optical Conversion Materials and Technology, School of Materials and Energy, Lanzhou University, Lanzhou 730000, China
| | - Juanjuan Huang
- National & Local Joint Engineering Laboratory for Optical Conversion Materials and Technology, School of Materials and Energy, Lanzhou University, Lanzhou 730000, China
| | - De Yan
- National & Local Joint Engineering Laboratory for Optical Conversion Materials and Technology, School of Materials and Energy, Lanzhou University, Lanzhou 730000, China
| | - Shanglong Peng
- National & Local Joint Engineering Laboratory for Optical Conversion Materials and Technology, School of Materials and Energy, Lanzhou University, Lanzhou 730000, China
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28
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Electrochemical deposition of nickel from aqueous electrolytic baths prepared by dissolution of metallic powder. J Solid State Electrochem 2021. [DOI: 10.1007/s10008-021-05084-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
AbstractA new method of preparation of aqueous electrolyte baths for electrochemical deposition of nickel targets for medical accelerators is presented. It starts with fast dissolution of metallic Ni powder in a HNO3-free solvent. Such obtained raw solution does not require additional treatment aimed to removal nitrates, such as the acid evaporation and Ni salt precipitation-dissolution. It is used directly for preparation of the nickel plating baths after dilution with water, setting up pH value and after possible addition of H3BO3. The pH of the baths ranges from alkaline to acidic. Deposition of 95% of ca. 50 mg of Ni dissolved in the bath takes ca. 3.5 h for the alkaline electrolyte while for the acidic solution it requires ca. 7 h. The Ni deposits obtained from the acidic bath are physically and chemically more stable and possess smoother and crack-free surfaces as compared to the coatings deposited from the alkaline bath. A method of estimation of concentration of H2O2 in the electrolytic bath is also proposed.
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29
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A Combined Chemical-Electrochemical Process to Capture CO2 and Produce Hydrogen and Electricity. ENERGIES 2021. [DOI: 10.3390/en14185807] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Several carbon sequestration technologies have been proposed to utilize carbon dioxide (CO2) to produce energy and chemical compounds. However, feasible technologies have not been adopted due to the low efficiency conversion rate and high-energy requirements. Process intensification increases the process productivity and efficiency by combining chemical reactions and separation operations. In this work, we present a model of a chemical-electrochemical cyclical process that can capture carbon dioxide as a bicarbonate salt. The proposed process also produces hydrogen and electrical energy. Carbon capture is enhanced by the reaction at the cathode that displaces the equilibrium into bicarbonate production. Literature data show that the cyclic process can produce stable operation for long times by preserving ionic balance using a suitable ionic membrane that regulates ionic flows between the two half-cells. Numerical simulations have validated the proof of concept. The proposed process could serve as a novel CO2 sequestration technology while producing electrical energy and hydrogen.
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30
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Kan S, Xu M, Feng W, Wu Y, Du C, Gao X, Wu YA, Liu H. Tuning Overall Water Splitting on an Electrodeposited NiCoFeP Films. ChemElectroChem 2021. [DOI: 10.1002/celc.202001501] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Shuting Kan
- Hunan Provincial Key Laboratory of Chemical Power Sources, College of Chemistry and Chemical Engineering Central South University Changsha 410083 PR China
| | - Mengying Xu
- Hunan Provincial Key Laboratory of Chemical Power Sources, College of Chemistry and Chemical Engineering Central South University Changsha 410083 PR China
| | - Wenshuai Feng
- School of Physics and Electronics Central South University Changsha 410083 PR China
| | - Yufeng Wu
- Hunan Provincial Key Laboratory of Chemical Power Sources, College of Chemistry and Chemical Engineering Central South University Changsha 410083 PR China
| | - Cheng Du
- Department of Mechanical and Mechatronics Engineering Waterloo Institute of Nanotechnology University of Waterloo Waterloo ON, N2 L 3G1 Canada
| | - Xiaohui Gao
- School of Physics and Electronics Central South University Changsha 410083 PR China
| | - Yimin A. Wu
- Department of Mechanical and Mechatronics Engineering Waterloo Institute of Nanotechnology University of Waterloo Waterloo ON, N2 L 3G1 Canada
| | - Hongtao Liu
- Hunan Provincial Key Laboratory of Chemical Power Sources, College of Chemistry and Chemical Engineering Central South University Changsha 410083 PR China
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