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Glauber JP, Lorenz J, Liu J, Müller B, Bragulla S, Kostka A, Rogalla D, Wark M, Nolan M, Harms C, Devi A. A sustainable CVD approach for ZrN as a potential catalyst for nitrogen reduction reaction. Dalton Trans 2024. [PMID: 39037344 DOI: 10.1039/d4dt01252f] [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 pursuit of developing alternatives for the highly polluting Haber-Bosch process for ammonia synthesis, the electrocatalytic nitrogen reduction reaction (NRR) using transition metal nitrides such as zirconium mononitride (ZrN) has been identified as a potential pathway for ammonia synthesis. In particular, specific facets of ZrN have been theoretically described as potentially active and selective for NRR. Major obstacles that need to be addressed include the synthesis of tailored catalyst materials that can activate the inert dinitrogen bond while suppressing hydrogen evolution reaction (HER) and not degrading during electrocatalysis. To tackle these challenges, a comprehensive understanding of the influence of the catalyst's structure, composition, and morphology on the NRR activity is required. This motivates the use of metal-organic chemical vapor deposition (MOCVD) as the material synthesis route as it enables catalyst nanoengineering by tailoring the process parameters. Herein, we report the fabrication of oriented and facetted crystalline ZrN thin films employing a single source precursor (SSP) MOCVD approach on silicon and glassy carbon (GC) substrates. First principles density functional theory (DFT) simulations elucidated the preferred decomposition pathway of SSP, whereas ab initio molecular dynamics simulations show that ZrN at room temperature undergoes surface oxidation with ambient O2, yielding a Zr-O-N film, which is consistent with compositional analysis using Rutherford backscattering spectrometry (RBS) in combination with nuclear reaction analysis (NRA) and X-ray photoelectron spectroscopy (XPS) depth profiling. Proof-of-principle electrochemical experiments demonstrated the applicability of the developed ZrN films on GC for NRR and qualitatively hint towards a possible activity for the electrochemical NRR in the sulfuric acid electrolyte.
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Affiliation(s)
- Jean-Pierre Glauber
- Inorganic Materials Chemistry, Ruhr University Bochum, Universitätsstr. 150, 44801 Bochum, Germany.
| | - Julian Lorenz
- Institute of Engineering Thermodynamics, German Aerospace Center (DLR), Carl-von-Ossietzky-Str. 15, 26129 Oldenburg, Germany
| | - Ji Liu
- Tyndall National Institute, University College Cork, Lee Maltings, Dyke Parade, T12 R5CP Cork, Ireland
| | - Björn Müller
- Institute of Chemistry, Carl von Ossietzky University Oldenburg, Carl-von-Ossietzky-Str. 9-11, 26129 Oldenburg, Germany
| | - Sebastian Bragulla
- Institute of Engineering Thermodynamics, German Aerospace Center (DLR), Carl-von-Ossietzky-Str. 15, 26129 Oldenburg, Germany
- Institute of Building Energetics, Thermal Engineering and Energy Storage, University of Stuttgart, Pfaffenwaldring 31, 70569 Stuttgart, Germany
| | - Aleksander Kostka
- Center for Interface Dominated Materials (ZGH), Ruhr University Bochum, Universitätsstr. 150, 44801 Bochum, Germany
| | - Detlef Rogalla
- RUBION, Ruhr University Bochum, Universitätsstr. 150, 44801 Bochum, Germany
| | - Michael Wark
- Institute of Chemistry, Carl von Ossietzky University Oldenburg, Carl-von-Ossietzky-Str. 9-11, 26129 Oldenburg, Germany
| | - Michael Nolan
- Tyndall National Institute, University College Cork, Lee Maltings, Dyke Parade, T12 R5CP Cork, Ireland
| | - Corinna Harms
- Institute of Engineering Thermodynamics, German Aerospace Center (DLR), Carl-von-Ossietzky-Str. 15, 26129 Oldenburg, Germany
| | - Anjana Devi
- Inorganic Materials Chemistry, Ruhr University Bochum, Universitätsstr. 150, 44801 Bochum, Germany.
- Leibniz Institute for Solid State and Materials Research, Helmholtzstr. 20, 01069, Dresden, Germany
- Chair of Materials Chemistry, Bergstr. 66, 01069, Dresden, Germany
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2
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Islam F, Ahsan M, Islam N, Hossain MI, Bahadur NM, Aziz A, Al-Humaidi JY, Rahman MM, Maiyalagan T, Hasnat MA. Recent Advancements in Ascribing Several Platinum Free Electrocatalysts Pertinent to Hydrogen Evolution from Water Reduction. Chem Asian J 2024:e202400220. [PMID: 38654594 DOI: 10.1002/asia.202400220] [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: 02/29/2024] [Revised: 04/16/2024] [Accepted: 04/21/2024] [Indexed: 04/26/2024]
Abstract
The advancement of a sustainable and scalable catalyst for hydrogen production is crucial for the future of the hydrogen economy. Electrochemical water splitting stands out as a promising pathway for sustainable hydrogen production. However, the development of Pt-free electrocatalysts that match the energy efficiency of Pt while remaining economical poses a significant challenge. This review addresses this challenge by highlighting latest breakthroughs in Pt-free catalysts for the hydrogen evolution reaction (HER). Specifically, we delve into the catalytic performance of various transition metal phosphides, metal carbides, metal sulphides, and metal nitrides toward HER. Our discussion emphasizes strategies for enhancing catalytic performance and explores the relationship between structural composition and the performance of different electrocatalysts. Through this comprehensive review, we aim to provide insights into the ongoing efforts to overcome barriers to scalable hydrogen production and pave the way for a sustainable hydrogen economy.
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Affiliation(s)
- Fahamidul Islam
- Electrochemistry & Catalysis Research Laboratory (ECRL), Department of Chemistry, School of Physical Sciences, Shahjalal University of Science and Technology, Sylhet, 3114, Bangladesh
- Department of Chemistry, Faculty of Science, Noakhali Science and Technology University, Noakhali, 3814, Bangladesh
| | - Mohebul Ahsan
- Electrochemistry & Catalysis Research Laboratory (ECRL), Department of Chemistry, School of Physical Sciences, Shahjalal University of Science and Technology, Sylhet, 3114, Bangladesh
- Division of Chemistry, Department of Science and Humanities, Military Institute of Science and Technology, Mirpur Cantonment-, 1216, Dhaka, Bangladesh
| | - Nurnobi Islam
- Electrochemistry & Catalysis Research Laboratory (ECRL), Department of Chemistry, School of Physical Sciences, Shahjalal University of Science and Technology, Sylhet, 3114, Bangladesh
| | - Mohammad Imran Hossain
- Electrochemistry & Catalysis Research Laboratory (ECRL), Department of Chemistry, School of Physical Sciences, Shahjalal University of Science and Technology, Sylhet, 3114, Bangladesh
| | - Newaz Mohammed Bahadur
- Department of Chemistry, Faculty of Science, Noakhali Science and Technology University, Noakhali, 3814, Bangladesh
| | - Abdul Aziz
- Interdisciplinary Research Center for Hydrogen Technologies and Carbon Management (IRC-HTCM), King Fahd University of Petroleum & Minerals, KFUPM Box 5040, Dhahran, 31261, Saudi Arabia
| | - Jehan Y Al-Humaidi
- Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, P.O. BOX 84428, Riyadh, 11671, Saudi Arabia
| | - Mohammed M Rahman
- Center of Excellence for Advanced Materials Research (CEAMR) & Chemistry department, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - T Maiyalagan
- Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur, 603 203, Tamilnadu, India
| | - Mohammad A Hasnat
- Electrochemistry & Catalysis Research Laboratory (ECRL), Department of Chemistry, School of Physical Sciences, Shahjalal University of Science and Technology, Sylhet, 3114, Bangladesh
- International Research Organization for Advanced Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto, 860-8555, Japan
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Corbin J, Jones M, Lyu C, Loh A, Zhang Z, Zhu Y, Li X. Challenges and progress in oxygen evolution reaction catalyst development for seawater electrolysis for hydrogen production. RSC Adv 2024; 14:6416-6442. [PMID: 38380239 PMCID: PMC10877674 DOI: 10.1039/d3ra08648h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Accepted: 02/12/2024] [Indexed: 02/22/2024] Open
Abstract
Production of green hydrogen on a large scale can negatively impact freshwater resources. Therefore, using seawater as an electrolyte in electrolysis is a desirable alternative to reduce costs and freshwater reliance. However, there are limitations to this approach, primarily due to the catalyst involved in the oxygen evolution reaction (OER). In seawater, the OER features sluggish kinetics and complicated chemical reactions that compete. This review first introduces the benefits and challenges of direct seawater electrolysis and then summarises recent research into cost-effective and durable OER electrocatalysts. Different modification methods for nickel-based electrocatalysts are thoroughly reviewed, and promising electrocatalysts that the authors believe deserve further exploration have been highlighted.
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Affiliation(s)
- Jack Corbin
- Renewable Energy Group, Department of Engineering, Faculty of Environment, Science and Economy, University of Exeter, Penryn Campus Cornwall TR10 9FE UK
| | - Mikey Jones
- Renewable Energy Group, Department of Engineering, Faculty of Environment, Science and Economy, University of Exeter, Penryn Campus Cornwall TR10 9FE UK
| | - Cheng Lyu
- Renewable Energy Group, Department of Engineering, Faculty of Environment, Science and Economy, University of Exeter, Penryn Campus Cornwall TR10 9FE UK
| | - Adeline Loh
- Renewable Energy Group, Department of Engineering, Faculty of Environment, Science and Economy, University of Exeter, Penryn Campus Cornwall TR10 9FE UK
| | - Zhenyu Zhang
- Renewable Energy Group, Department of Engineering, Faculty of Environment, Science and Economy, University of Exeter, Penryn Campus Cornwall TR10 9FE UK
| | - Yanqui Zhu
- Department of Engineering, Faculty of Environment, Science and Economy, University of Exeter, Streatham Campus Exeter EX4 4PY UK
| | - Xiaohong Li
- Renewable Energy Group, Department of Engineering, Faculty of Environment, Science and Economy, University of Exeter, Penryn Campus Cornwall TR10 9FE UK
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Ellingsson V, Iqbal A, Skúlason E, Abghoui Y. Nitrogen Reduction Reaction to Ammonia on Transition Metal Carbide Catalysts. CHEMSUSCHEM 2023; 16:e202300947. [PMID: 37702376 DOI: 10.1002/cssc.202300947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 09/12/2023] [Accepted: 09/13/2023] [Indexed: 09/14/2023]
Abstract
The development of a low-cost, energy-efficient, and environmentally friendly alternative to the currently utilized Haber-Bosch process to produce ammonia is of great importance. Ammonia is an essential chemical used in fertilizers and a promising high-density fuel source. The nitrogen reduction reaction (NRR) has been explored intensively as a potential avenue for ammonia production using water as proton source, but to this day a catalyst capable of producing this chemical at high Faradaic efficiency (FE) and commercial yield and rates has not been reported. Here, we investigate the activity of transition metal carbide (TMC) surfaces in the (100) facets of the rocksalt (RS) structure as potential catalysts for the NRR. In this study, we use density functional theory (DFT) to model reaction pathways, estimate stability, assess kinetic barriers, and compare adsorbate energies to determine the overall performance of each TMC surface. For pristine TMC surfaces (with no defects) we find that none of the studied TMCs possess both exergonic adsorption of nitrogen and the capability to selectively protonate nitrogen to form ammonia in the desired aqueous solution. ZrC, however, is shown to be a potential catalyst if used in a non-aqueous electrolyte. To circumvent the endergonic adsorption of nitrogen onto the surface, a carbon vacancy was introduced. This provides a well-defined high coordination active site on the surface. In the presence of a vacancy VC, NbC, and WC showed efficient nitrogen adsorption, selectivity towards ammonia, and a low overpotential (OP). NbC did, however, display an unfeasible kinetic barrier to nitrogen dissociation for ambient-condition purposes, and thus it is suggested for high tempearture/pressure ammonia synthesis. Both WC and VC in their RS (100) structure are promising materials for experimental investigations in aqueous electrolytes, and ZrC could potentially be interesting for non-aqueous electrolytic systems.
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Affiliation(s)
- Viktor Ellingsson
- Science Institute of the University of Iceland, 101, Reykjavik, Iceland
| | - Atef Iqbal
- Science Institute of the University of Iceland, 101, Reykjavik, Iceland
| | - Egill Skúlason
- Science Institute of the University of Iceland, 101, Reykjavik, Iceland
- Faculty of Industrial Engineering, Mechanical Engineering and Computer Science, University of Iceland, 101, Reykjavik, Iceland
| | - Younes Abghoui
- Science Institute of the University of Iceland, 101, Reykjavik, Iceland
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5
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Tashiro K, Kobayashi S, Inoue H, Yanagita A, Shimoda S, Satokawa S. Synthesis of niobium(iv) carbide nanoparticles via an alkali-molten-method at a spatially-limited surface of mesoporous carbon. RSC Adv 2023; 13:24918-24924. [PMID: 37614783 PMCID: PMC10442771 DOI: 10.1039/d3ra03254j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 08/15/2023] [Indexed: 08/25/2023] Open
Abstract
One-pot synthesis of niobium carbabide (NbC) nanoparticles with ca. 30-50 nm was achieved via a rationally designed novel alkali-molten salt method using niobium oxide (Nb2O5), potassium carbonate (K2CO3), and mesoporous carbon (MPC). In this reaction, potassium niobate (KNbO3) was produced as an intermediate and carbonization of KNbO3 proceeds at a spatially limited external surface encompassed by the mesopores of MPC due to the repulsive characteristics of ionic KNbO3 toward hydrophobic MPC, which affords the size-controlled NbC nanoparticles with a narrow particle distribution. The particle sizes tended to become smaller as the pore sizes of MPCs or the temperature on the calcination under the nitrogen stream decreased. Elemental reactions along the one-pot synthesis of NbC nanoparticles were clarified by X-ray spectroscopic, thermogravimetric, and mass spectrometric measurements.
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Affiliation(s)
- Keigo Tashiro
- Graduate School of Science and Technology, Seikei University 3-3-1 Kichijoji, Kitamachi Musashino-shi Tokyo 180-8633 Japan
| | - Shogo Kobayashi
- Graduate School of Science and Technology, Seikei University 3-3-1 Kichijoji, Kitamachi Musashino-shi Tokyo 180-8633 Japan
| | - Hinako Inoue
- Graduate School of Science and Technology, Seikei University 3-3-1 Kichijoji, Kitamachi Musashino-shi Tokyo 180-8633 Japan
| | - Akihide Yanagita
- Graduate School of Science and Technology, Seikei University 3-3-1 Kichijoji, Kitamachi Musashino-shi Tokyo 180-8633 Japan
| | - Shuhei Shimoda
- Institute for Catalysis, Hokkaido University Kita 21 Nishi 10, Kita-ku Sapporo-shi Hokkaido 001-0021 Japan
| | - Shigeo Satokawa
- Graduate School of Science and Technology, Seikei University 3-3-1 Kichijoji, Kitamachi Musashino-shi Tokyo 180-8633 Japan
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Chen X, Le F, Lu Z, Zhou D, Yao H, Jia W. Ultrafine Electrospun Cobalt-Molybdenum Bimetallic Nitride as a Durable Electrocatalyst for Hydrogen Evolution. Inorg Chem 2023. [PMID: 37392193 DOI: 10.1021/acs.inorgchem.3c01384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/03/2023]
Abstract
Transition metal nitrides are promising electrocatalysts for hydrogen evolution reaction (HER) owing to their Pt-like electronic structure. However, the harsh nitriding conditions greatly limit their large-scale applications. Herein, ultrafine Co3Mo3N-Mo2C (<1 nm)-decorated carbon nanofibers (Co3Mo3N-Mo2C/CNFs) were prepared by electrostatic spinning followed by pyrolysis treatment, in which the MoCo-MOF simultaneously serves as the precursor and nitrogen source. The generated synergistic interactions between Mo2C and Co3Mo3N significantly adjust the electronic structure of Mo2C and afford a fast charge transfer, which endows the resultant hybrid with superior HER electrocatalytic performances. Specifically, the as-obtained Co3Mo3N-Mo2C/CNF delivers a low overpotential of only 76 mV to achieve a current density of 10 mA cm-2 and superior durability with no obvious degradation for 200 h in acidic media. This performance outperforms most of the transition metal-based electrocatalysts reported to date. This work paves a new way for the design of catalysts with ultrasmall size and high efficiency in energy conversion.
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Affiliation(s)
- Xianhao Chen
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, Key Laboratory of Advanced Functional Materials, Autonomous Region, College of Chemistry, Xinjiang University, Urumqi 830017, China
| | - Fuhe Le
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, Key Laboratory of Advanced Functional Materials, Autonomous Region, College of Chemistry, Xinjiang University, Urumqi 830017, China
- Xinjiang Uygur Autonomous Region Research Institute of Measurement and Testing, Urumqi 830011, China
| | - Zhenjiang Lu
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, Key Laboratory of Advanced Functional Materials, Autonomous Region, College of Chemistry, Xinjiang University, Urumqi 830017, China
| | - Dehuo Zhou
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, Key Laboratory of Advanced Functional Materials, Autonomous Region, College of Chemistry, Xinjiang University, Urumqi 830017, China
| | - Haibin Yao
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, Key Laboratory of Advanced Functional Materials, Autonomous Region, College of Chemistry, Xinjiang University, Urumqi 830017, China
| | - Wei Jia
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, Key Laboratory of Advanced Functional Materials, Autonomous Region, College of Chemistry, Xinjiang University, Urumqi 830017, China
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Cathode materials for lithium-sulfur battery: a review. J Solid State Electrochem 2023. [DOI: 10.1007/s10008-023-05387-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
AbstractLithium-sulfur batteries (LSBs) are considered to be one of the most promising candidates for becoming the post-lithium-ion battery technology, which would require a high level of energy density across a variety of applications. An increasing amount of research has been conducted on LSBs over the past decade to develop fundamental understanding, modelling, and application-based control. In this study, the advantages and disadvantages of LSB technology are discussed from a fundamental perspective. Then, the focus shifts to intermediate lithium polysulfide adsorption capacity and the challenges involved in improving LSBs by using alternative materials besides carbon for cathode construction. Attempted alternative materials include metal oxides, metal carbides, metal nitrides, MXenes, graphene, quantum dots, and metal organic frameworks. One critical issue is that polar material should be more favorable than non-polar carbonaceous materials in the aspect of intermediate lithium polysulfide species adsorption and suppress shuttle effect. It will be also presented that by preparing cathode with suitable materials and morphological structure, high-performance LSB can be obtained.
Graphical abstract
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Qin C, Tian S, Wang W, Jiang ZJ, Jiang Z. Advances in platinum-based and platinum-free oxygen reduction reaction catalysts for cathodes in direct methanol fuel cells. Front Chem 2022; 10:1073566. [DOI: 10.3389/fchem.2022.1073566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Accepted: 11/01/2022] [Indexed: 11/19/2022] Open
Abstract
Direct methanol fuel cells (DMFCs) have been the focus of future research because of their simple structure, abundant fuel sources, high energy conversion efficiency and low cost. Among the components in DMFC, the activity and stability of the cathode catalyst is the key to the performance and lifetime of the DMFCs. Oxygen reduction reaction (ORR) is an important electrode reaction on DMFC cathode. It is known that Pt is widely used in the fabrication of ORR catalysts, but the limited earth storage of Pt and its high price limit the use of Pt-based commercial catalysts in DMFCs. To overcome these problems, advances have been made on new low Pt-based catalysts and Pt-free catalysts in recent years. In this article, the development of novel ORR catalysts and the carbon supports is reviewed and discussed.
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Ranjan P, Saptal VB, Bera JK. Recent Advances in Carbon Dioxide Adsorption, Activation and Hydrogenation to Methanol using Transition Metal Carbides. CHEMSUSCHEM 2022; 15:e202201183. [PMID: 36036640 DOI: 10.1002/cssc.202201183] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 08/29/2022] [Indexed: 06/15/2023]
Abstract
The inevitable emission of carbon dioxide (CO2 ) due to the burning of a substantial amount of fossil fuels has led to serious energy and environmental challenges. Metal-based catalytic CO2 transformations into commodity chemicals are a favorable approach in the CO2 mitigation strategy. Among these transformations, selective hydrogenation of CO2 to methanol is the most promising process that not only fulfils the energy demands but also re-balances the carbon cycle. The investigation of CO2 adsorption on the surface of heterogeneous catalyst is highly important because the formation of various intermediates which determines the selectivity of product. Transition metal carbides (TMCs) have received considerable attention in recent years because of their noble metal-like reactivity, ceramic-like properties, high chemical and thermal stability. These features make them excellent catalytic materials for a variety of transformations such as CO2 adsorption and its conversion into value-added chemicals. Herein, the catalytic properties of TMCs are summarize along with synthetic methods, CO2 binding modes, mechanistic studies, effects of dopant on CO2 adsorption, and carbon/metal ratio in the CO2 hydrogenation reaction to methanol using computational as well as experimental studies. Additionally, this Review provides an outline of the challenges and opportunities for the development of potential TMCs in CO2 hydrogenation reactions.
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Affiliation(s)
- Prabodh Ranjan
- Department of Chemistry and Center for Environmental Science and Engineering, Indian Institute of Technology Kanpur, Kanpur, 208016, India
| | - Vitthal B Saptal
- Department of Chemistry and Center for Environmental Science and Engineering, Indian Institute of Technology Kanpur, Kanpur, 208016, India
| | - Jitendra K Bera
- Department of Chemistry and Center for Environmental Science and Engineering, Indian Institute of Technology Kanpur, Kanpur, 208016, India
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Moriau L, Smiljanić M, Lončar A, Hodnik N. Supported Iridium-based Oxygen Evolution Reaction Electrocatalysts - Recent Developments. ChemCatChem 2022; 14:e202200586. [PMID: 36605357 PMCID: PMC9804445 DOI: 10.1002/cctc.202200586] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 07/28/2022] [Indexed: 01/09/2023]
Abstract
The commercialization of acidic proton exchange membrane water electrolyzers (PEMWE) is heavily hindered by the price and scarcity of oxygen evolution reaction (OER) catalyst, i. e. iridium and its oxides. One of the solutions to enhance the utilization of this precious metal is to use a support to distribute well dispersed Ir nanoparticles. In addition, adequately chosen support can also impact the activity and stability of the catalyst. However, not many materials can sustain the oxidative and acidic conditions of OER in PEMWE. Hereby, we critically and extensively review the different materials proposed as possible supports for OER in acidic media and the effect they have on iridium performances.
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Affiliation(s)
- Leonard Moriau
- Department of Materials ChemistryNational Institute of ChemistryHajdrihova 191001LjubljanaSlovenia
| | - Milutin Smiljanić
- Department of Materials ChemistryNational Institute of ChemistryHajdrihova 191001LjubljanaSlovenia
| | - Anja Lončar
- Department of Materials ChemistryNational Institute of ChemistryHajdrihova 191001LjubljanaSlovenia,University of Nova GoricaVipavska 135000Nova GoricaSlovenia
| | - Nejc Hodnik
- Department of Materials ChemistryNational Institute of ChemistryHajdrihova 191001LjubljanaSlovenia,University of Nova GoricaVipavska 135000Nova GoricaSlovenia
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Highly Active Lanthanum Perovskite Electrocatalysts (LaMnxCo1-xO3 (0 ≤ x ≤ 1)) by Tuning the Mn:Co Ratio for ORR and MOR in Alkaline Medium. Electrocatalysis (N Y) 2022. [DOI: 10.1007/s12678-022-00772-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
AbstractLanthanum-based perovskites (LaMnxCo1-xO3 (0 ≤ x ≤ 1)) were synthesized using a solution combustion synthesis technique with variable ratios of Co and Mn to investigate the surface property and electrocatalytic characteristics (stability and activity of catalyst) for methanol oxidation reaction (MOR), oxygen reduction reaction (ORR), and oxygen evolution reaction (OER) under alkaline medium (KOH). The structural, chemical, and morphological characterizations of the synthesized catalyst were performed by XRD, FTIR, SEM, TEM, and XPS techniques as a function of the Mn:Co elemental ratio. The time–temperature profile during the combustion process was also monitored to study the completion of the combustion reaction and to understand its impact on the structure of the perovskites. SEM/EDX and XPS analysis confirmed the formation of the targeted ratio of Mn and Co on the catalyst. Cyclic voltammetry (CV) and linear sweep voltammetry (LSV) results revealed that all perovskite samples with different Co:Mn ratios were active for ORR, OER, and MOR. The LaMnxCo1-xO3 perovskite with x = 0.4 showed the highest current density compared to the other samples toward all the electrocatalytic reactions under alkaline reaction conditions.
Graphical Abstract
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12
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Kuznetsov VV, Podlovchenko BI, Frolov KV, Volkov MA, Khanin DA. A new promising Pt(Mo2C) catalyst for hydrogen evolution reaction prepared by galvanic displacement reaction. J Solid State Electrochem 2022. [DOI: 10.1007/s10008-022-05222-x] [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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13
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Baek DS, Lee J, Kim J, Joo SH. Metastable Phase-Controlled Synthesis of Mesoporous Molybdenum Carbides for Efficient Alkaline Hydrogen Evolution. ACS Catal 2022. [DOI: 10.1021/acscatal.2c01772] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Du San Baek
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Jinyoung Lee
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Jinjong Kim
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Sang Hoon Joo
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
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14
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Asakura Y, Hasegawa T, Yin S. Utility of NaMoO3F as a Precursor for Homogeneous Distribution of Cobalt Dopants in Molybdenum Oxynitrides. Chem Asian J 2022; 17:e202200143. [PMID: 35338592 DOI: 10.1002/asia.202200143] [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: 02/14/2022] [Revised: 03/21/2022] [Indexed: 11/12/2022]
Abstract
Molybdenum nitrides and their related compounds have been focused as a catalyst for several reactions. Although the doping into molybdenum nitrides lead to the higher catalytic activity, the simultaneous control of the morphology, the crystallinity, and the dopant state in doped MoN cannot be easily achieved due to the limitation of the synthesis method. In this study, one of the mixed anion compounds, NaMoO 3 F was used as a precursor for molybdenum oxynitrides with hexagonal MoN phase. This route led to the homogeneous distribution of cobalt in the molybdenum oxynitride compared with that obtained by the other method. The cobalt-doped molybdenum oxynitride from NaMoO 3 F exhibited high oxygen reduction reaction catalytic activity due to the high distribution of cobalt in the crystal. This paper proposes that the mixed anion compounds can be a unique precursor for the other materials to expand the controllability of materials toward improvement of their activity.
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Affiliation(s)
- Yusuke Asakura
- Waseda University: Waseda Daigaku, Kagami Memorial Institute for Materials Science and Technology, 2-8-26 Nishiwaseda, Shinjuku-ku, 169-0051, Tokyo, JAPAN
| | - Takuya Hasegawa
- Tohoku University: Tohoku Daigaku, Institute of Multidisciplinary Research for Advanced Materials, JAPAN
| | - Shu Yin
- Tohoku University: Tohoku Daigaku, Institute of Multidisciplinary Research for Advanced Materials, JAPAN
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15
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Inocêncio CVM, Holade Y, Morais C, Kokoh KB, Napporn TW. Electrochemical hydrogen generation technology: Challenges in electrodes materials for a sustainable energy. ELECTROCHEMICAL SCIENCE ADVANCES 2022. [DOI: 10.1002/elsa.202100206] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Affiliation(s)
- Carlos V. M. Inocêncio
- Institut de Chimie des Milieux et Matériaux de Poitiers (IC2MP) UMR 7285 CNRS Université de Poitiers Poitiers France
| | - Yaovi Holade
- Institut Européen des Membranes (IEM) UMR 5635 CNRS ENSCM Université de Montpellier Montpellier France
| | - Claudia Morais
- Institut de Chimie des Milieux et Matériaux de Poitiers (IC2MP) UMR 7285 CNRS Université de Poitiers Poitiers France
| | - K. Boniface Kokoh
- Institut de Chimie des Milieux et Matériaux de Poitiers (IC2MP) UMR 7285 CNRS Université de Poitiers Poitiers France
| | - Teko W. Napporn
- Institut de Chimie des Milieux et Matériaux de Poitiers (IC2MP) UMR 7285 CNRS Université de Poitiers Poitiers France
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16
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Cui B, Fu G. Process of metal-organic framework (MOF)/covalent-organic framework (COF) hybrids-based derivatives and their applications on energy transfer and storage. NANOSCALE 2022; 14:1679-1699. [PMID: 35048101 DOI: 10.1039/d1nr07614k] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The fossil-fuel shortage and severe environmental issues have posed ever-increasing demands on clean and renewable energy sources, for which the exploration of electrocatalysts has been a big challenge toward energy transfer and storage. Some indispensable features of electrocatalysts, such as large surface area, controlled structure, high porosity, and effective functionalization, have been proved to be critical for the improvement of electrocatalytic activities. Recently, the rapid expansion of metal-organic frameworks (MOFs), covalent-organic frameworks (COFs), and porous-organic polymers has provided extensive opportunities for the development of various electrocatalysts. Moreover, combining diverse descriptions of porous-organic frameworks (such as MOFs and COFs) can generate amazing and fantastic properties, affording the formed MOF/COF (including core-shell MOF@MOF and MOF@COF and layer-on-layer MOF-on-MOF or COF-on-MOF) heterostructures wide applications in diverse fields, especially in clean energy and energy transfer. To further boosts electronic conductivity, catalytic performances, and energy storage abilities, these MOF/COF hybrid materials have been widely utilized as versatile precursors for the manufacture of transition metal catalysts embedded within mesoporous carbon nitrides (M@CNx) and porous carbon nitride frameworks (CNx) via a facile pyrolysis process. Given that these M@CNx and CNx hybrids are composed of abundant catalytic centers, rich functionalities, and large specific surface areas, vast applications in energy transfer and energy storage fields can be realized. In this mini-review, we summarize the preparation strategies of MOF/COF-based hybrids, as well as their derivatives, nanostructure formation mechanism of M@CNx and CNx hybrids from MOF/COF-based hybrid materials, and their applications as catalysts for driving diverse reactions and electrode materials for energy storage. Further, current challenges and future prospects of applying these derivatives into energy conversion and storage devices are also discussed.
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Affiliation(s)
- Bingbing Cui
- School of Chemistry and Chemical Engineering, Southeast University, Jiangning District, Nanjing, Jiangsu Province 211189, China.
| | - Guodong Fu
- School of Chemistry and Chemical Engineering, Southeast University, Jiangning District, Nanjing, Jiangsu Province 211189, China.
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17
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Oldroyd P, Malliaras GG. Achieving long-term stability of thin-film electrodes for neurostimulation. Acta Biomater 2022; 139:65-81. [PMID: 34020055 DOI: 10.1016/j.actbio.2021.05.004] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 05/06/2021] [Accepted: 05/06/2021] [Indexed: 12/17/2022]
Abstract
Implantable electrodes that can reliably measure brain activity and deliver an electrical stimulus to a target tissue are increasingly employed to treat various neurological diseases and neuropsychiatric disorders. Flexible thin-film electrodes have gained attention over the past few years to minimise invasiveness and damage upon implantation. Research has previously focused on optimising the electrode's electrical and mechanical properties; however, their chronic stability must be validated to translate electrodes from a research to a clinical application. Neurostimulation electrodes, which actively inject charge, have yet to reliably demonstrate continuous functionality for ten years or more in vivo, the accepted metric for clinical viability. Long-term stability can only be achieved if the focus switches to investigating how and why such devices fail. Unfortunately, there is a field-wide reluctance to investigate device stability and failures, which hinders device optimisation. This review surveys thin-film electrode designs with a focus on adhesion between electrode layers and the interactions with the surrounding environment. A comprehensive summary of the abiotic failure modes faced by such electrodes is presented, and to encourage investigation, systematic methods for analysing their origin are recommended. Finally, approaches to reducing the likelihood of device failure are offered. STATEMENT OF SIGNIFICANCE: Neural electrodes that can deliver an electrical stimulus to a target tissue are widely used to treat various neurological diseases. Essential to the function of these electrodes is the ability to safely stimulate the target tissue for extended periods (> 10 years); however, this has not yet been clinically achieved. The key to achieving long-term stability is an increased understanding of electrode interactions with the surrounding tissue and subsequent systematic analysis of their failure modes. This review highlights the need for a change in the approach to investigating electrode failure, and in doing so summarizes the common ways in which neural electrodes fail, methods for identifying them and approaches to preventing them.
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18
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Abstract
Hydrogen energy, as a clean and renewable energy, has attracted much attention in recent years. Water electrolysis via the hydrogen evolution reaction at the cathode coupled with the oxygen evolution reaction at the anode is a promising method to produce hydrogen. Given the shortage of freshwater resources on the planet, the direct use of seawater as an electrolyte for hydrogen production has become a hot research topic. Direct use of seawater as the electrolyte for water electrolysis can reduce the cost of hydrogen production due to the great abundance and wide availability. In recent years, various high-efficiency electrocatalysts have made great progress in seawater splitting and have shown great potential. This review introduces the mechanisms and challenges of seawater splitting and summarizes the recent progress of various electrocatalysts used for hydrogen and oxygen evolution reaction in seawater electrolysis in recent years. Finally, the challenges and future opportunities of seawater electrolysis for hydrogen and oxygen production are presented.
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19
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20
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Jaf ZN, Miran HA, Jiang ZT, Altarawneh M. Molybdenum nitrides from structures to industrial applications. REV CHEM ENG 2021. [DOI: 10.1515/revce-2021-0002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Owing to their remarkable characteristics, refractory molybdenum nitride (MoN
x
)-based compounds have been deployed in a wide range of strategic industrial applications. This review reports the electronic and structural properties that render MoN
x
materials as potent catalytic surfaces for numerous chemical reactions and surveys the syntheses, procedures, and catalytic applications in pertinent industries such as the petroleum industry. In particular, hydrogenation, hydrodesulfurization, and hydrodeoxygenation are essential processes in the refinement of oil segments and their conversions into commodity fuels and platform chemicals. N-vacant sites over a catalyst’s surface are a significant driver of diverse chemical phenomena. Studies on various reaction routes have emphasized that the transfer of adsorbed hydrogen atoms from the N-vacant sites reduces the activation barriers for bond breaking at key structural linkages. Density functional theory has recently provided an atomic-level understanding of Mo–N systems as active ingredients in hydrotreating processes. These Mo–N systems are potentially extendible to the hydrogenation of more complex molecules, most notably, oxygenated aromatic compounds.
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Affiliation(s)
- Zainab N. Jaf
- Department of Physics, College of Education for Pure Sciences – Ibn Al-Haitham , University of Baghdad , Baghdad 10071 , Iraq
| | - Hussein A. Miran
- Department of Physics, College of Education for Pure Sciences – Ibn Al-Haitham , University of Baghdad , Baghdad 10071 , Iraq
| | - Zhong-Tao Jiang
- Surface Analysis and Materials Engineering Research Group, College of Science, Health, Engineering and Education , Murdoch University , Murdoch , WA 6150 , Australia
| | - Mohammednoor Altarawneh
- Department of Chemical and Petroleum Engineering , United Arab Emirates University , Sheikh Khalifa bin Zayed Street , Al-Ain 15551 , United Arab Emirates
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21
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Park SH, Kang SH, Youn DH. Direct One-Step Growth of Bimetallic Ni 2Mo 3N on Ni Foam as an Efficient Oxygen Evolution Electrocatalyst. MATERIALS (BASEL, SWITZERLAND) 2021; 14:4768. [PMID: 34443289 PMCID: PMC8398334 DOI: 10.3390/ma14164768] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 08/18/2021] [Accepted: 08/19/2021] [Indexed: 11/16/2022]
Abstract
A simple and economical synthetic route for direct one-step growth of bimetallic Ni2Mo3N nanoparticles on Ni foam substrate (Ni2Mo3N/NF) and its catalytic performance during an oxygen evolution reaction (OER) are reported. The Ni2Mo3N/NF catalyst was obtained by annealing a mixture of a Mo precursor, Ni foam, and urea at 600 °C under N2 flow using one-pot synthesis. Moreover, the Ni2Mo3N/NF exhibited high OER activity with low overpotential values (336.38 mV at 50 mA cm-2 and 392.49 mV at 100 mA cm-2) and good stability for 5 h in Fe-purified alkaline electrolyte. The Ni2Mo3N nanoparticle surfaces converted into amorphous surface oxide species during the OER, which might be attributed to the OER activity.
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Affiliation(s)
- Sang Heon Park
- Department of Chemical Engineering, Interdisciplinary Program in Advanced Functional Materials and Devices Development, Kangwon National University, Chuncheon 24341, Korea;
| | - Soon Hyung Kang
- Department of Chemistry Education, Chonnam National University, Gwangju 61186, Korea
| | - Duck Hyun Youn
- Department of Chemical Engineering, Interdisciplinary Program in Advanced Functional Materials and Devices Development, Kangwon National University, Chuncheon 24341, Korea;
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22
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Hamo ER, Rosen BA. Improved Durability and Activity in Pt/Mo
2
C Fuel Cell Cathodes by Magnetron Sputtering of Tantalum. ChemElectroChem 2021. [DOI: 10.1002/celc.202100591] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Eliran R. Hamo
- Department of Materials Science and Engineering Tel Aviv University Tel Aviv-Yafo, Ramat Aviv 69978001 ISRAEL
| | - Brian A. Rosen
- Department of Materials Science and Engineering Tel Aviv University Tel Aviv-Yafo, Ramat Aviv 69978001 ISRAEL
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23
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Yuan Y, Adimi S, Thomas T, Wang J, Guo H, Chen J, Attfield JP, DiSalvo FJ, Yang M. Co 3Mo 3N-An efficient multifunctional electrocatalyst. Innovation (N Y) 2021; 2:100096. [PMID: 34557748 PMCID: PMC8454690 DOI: 10.1016/j.xinn.2021.100096] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Accepted: 03/12/2021] [Indexed: 11/21/2022] Open
Abstract
Efficient catalysts are required for both oxidative and reductive reactions of hydrogen and oxygen in sustainable energy conversion devices. However, current precious metal-based electrocatalysts do not perform well across the full range of reactions and reported multifunctional catalysts are all complex hybrids. Here, we show that single-phase porous Co3Mo3N prepared via a facile method is an efficient and reliable electrocatalyst for three essential energy conversion reactions; oxygen evolution reaction (OER), oxygen reduction reaction (ORR), and hydrogen evolution reaction (HER) in alkaline solutions. Co3Mo3N presents outstanding OER, ORR, and HER activity with high durability, comparable with the commercial catalysts RuO2 for OER and Pt/C for ORR and HER. In practical demonstrations, Co3Mo3N gives high specific capacity (850 mA h gZn−1 at 10 mA cm−2) as the cathode in a zinc-air battery, and a low potential (1.63 V at 10 mA cm−2) used in a water-splitting electrolyzer. Availability of Co and Mo d-states appear to result in high ORR and HER performance, while the OER properties result from a cobalt oxide-rich activation surface layer. Our findings will inspire further development of bimetallic nitrides as cost-effective and versatile multifunctional catalysts that will enable scalable usage of electrochemical energy devices. Porous Co3Mo3N can act as a multifunctional electrocatalyst for OER, ORR, and HER Co3Mo3N performs better than precious metal catalysts Cobalt oxide-rich activation surface layer is shown to aid OER activity Better ORR and HER performance of Co3Mo3N is due to Co and Mo d-states
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Affiliation(s)
- Yao Yuan
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China.,Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Samira Adimi
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China
| | - Tiju Thomas
- Department of Metallurgical and Materials Engineering, Indian Institute of Technology Madras Adyar, Chennai 600036, Tamil Nadu, India
| | - Jiacheng Wang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, China
| | - Haichuan Guo
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China
| | - Jian Chen
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - J Paul Attfield
- Centre for Science at Extreme Conditions and School of Chemistry, University of Edinburgh, Edinburgh, EH9 3JZ, UK
| | - Francis J DiSalvo
- Department of Chemistry and Chemical Biology, Cornell University, New York, 14853, USA
| | - Minghui Yang
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China
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24
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Arif Khan M, Sun C, Cai J, Ye D, Zhao K, Zhang G, Shi S, Ali Shah L, Fang J, Yang C, Zhao H, Mu S, Zhang J. Potassium‐Ion Activating Formation of Fe−N−C Moiety as Efficient Oxygen Electrocatalyst for Zn‐Air Batteries. ChemElectroChem 2021. [DOI: 10.1002/celc.202001625] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Muhammad Arif Khan
- School of Material Science and Engineering Shanghai University Shanghai 200444 P.R China
- College of Sciences & Institute for Sustainable Energy Shanghai University Shanghai 200444 P. R. China
| | - Congli Sun
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430070 P. R. China
| | - Jian Cai
- Department of Physics, College of Sciences & Institute for Sustainable Energy Shanghai University Shanghai 200444 PR China
| | - Daixin Ye
- College of Sciences & Institute for Sustainable Energy Shanghai University Shanghai 200444 P. R. China
| | - Kangning Zhao
- College of Sciences & Institute for Sustainable Energy Shanghai University Shanghai 200444 P. R. China
| | - Guobing Zhang
- College of Mechanical Engineering City University of Hong Kong Kowloon P. R. China
| | - Shanshan Shi
- College of Sciences & Institute for Sustainable Energy Shanghai University Shanghai 200444 P. R. China
| | - Luqman Ali Shah
- Polymer Laboratory National Centre of Excellence in Physical Chemistry University of Peshawar Peshawar 25120 Pakistan
| | - Jianhui Fang
- College of Sciences & Institute for Sustainable Energy Shanghai University Shanghai 200444 P. R. China
| | - Chao Yang
- Institute of Material Science and Technologies Technical University Berlin Berlin 10623 Germany
| | - Hongbin Zhao
- College of Sciences & Institute for Sustainable Energy Shanghai University Shanghai 200444 P. R. China
| | - Shichun Mu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan 430070 P. R. China
| | - Jiujun Zhang
- College of Sciences & Institute for Sustainable Energy Shanghai University Shanghai 200444 P. R. China
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25
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Sun T, Mitchell S, Li J, Lyu P, Wu X, Pérez-Ramírez J, Lu J. Design of Local Atomic Environments in Single-Atom Electrocatalysts for Renewable Energy Conversions. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2003075. [PMID: 33283369 DOI: 10.1002/adma.202003075] [Citation(s) in RCA: 89] [Impact Index Per Article: 29.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 08/06/2020] [Indexed: 05/27/2023]
Abstract
Single-atom electrocatalysts (SAECs) have recently attracted tremendous research interest due to their often remarkable catalytic responses, unmatched by conventional catalysts. The electrocatalytic performance of SAECs is closely related to the specific metal species and their local atomic environments, including their coordination number, the determined structure of the coordination sites, and the chemical identity of nearest and second nearest neighboring atoms. The wide range of distinct chemical bonding configurations of a single-metal atom with its surrounding host atoms creates virtually limitless opportunities for the rational design and synthesis of SAECs with tunable local atomic environment for high-performance electrocatalysis. In this review, the authors first identify fundamental hurdles in electrochemical conversions and highlight the relevance of SAECs. They then critically examine the role of the local atomic structures, encompassing the first and second coordination spheres of the isolated metal atoms, on the design of high-performance SAECs. The relevance of single-atom dopants for host activation is also discussed. Insights into the correlation between local structures of SAECs and their catalytic response are analyzed and discussed. Finally, the authors summarize major challenges to be addressed in the field of SAECs and provide some perspectives in the rational construction of superior SAECs for a wide range of electrochemical conversions.
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Affiliation(s)
- Tao Sun
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
- Centre for Advanced 2D Materials and Graphene Research Centre, National University of Singapore, Singapore, 117546, Singapore
| | - Sharon Mitchell
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1, Zürich, 8093, Switzerland
| | - Jing Li
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
- Centre for Advanced 2D Materials and Graphene Research Centre, National University of Singapore, Singapore, 117546, Singapore
| | - Pin Lyu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Xinbang Wu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Javier Pérez-Ramírez
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1, Zürich, 8093, Switzerland
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Science Drive 4, Singapore, 117585, Singapore
| | - Jiong Lu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
- Centre for Advanced 2D Materials and Graphene Research Centre, National University of Singapore, Singapore, 117546, Singapore
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26
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Fe/Co/Ni mixed oxide nanoparticles supported on oxidized multi-walled carbon nanotubes as electrocatalysts for the oxygen reduction and the oxygen evolution reactions in alkaline media. Catal Today 2020. [DOI: 10.1016/j.cattod.2019.02.047] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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27
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Nazir R, Khalfani A, Abdelfattah O, Kumar A, Saleh Saad MA, Ali S. Nanosheet Synthesis of Mixed Co 3O 4/CuO via Combustion Method for Methanol Oxidation and Carbon Dioxide Reduction. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:12760-12771. [PMID: 33034455 DOI: 10.1021/acs.langmuir.0c02554] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
This paper represents a study of mixed Co3O4/CuO nanosheet (NS) synthesis via solution combustion synthesis for oxidation of methanol and carbon dioxide (CO2) conversion. The mixed oxide NS of Co3O4/CuO is a hybrid structure of Co3O4 and CuO NSs. We applied this mixed oxide NS of Co3O4/CuO for methanol oxidation and carbon dioxide (CO2) conversion, and the results revealed that the activity of the mixed oxide NS surpassed the activity of the corresponding individual Co3O4 and CuO metal oxide NSs, both in methanol oxidation and in CO2 conversion. The mass activity of the mixed Co3O4/CuO NS produced at 0.627 V versus Ag/AgCl during methanol oxidation (0.5 M) was 12 mA g-1, which is 2.4 times better than that of Co3O4, whose mass activity is 5 mA g-1, and 4 times better than that of the CuO NS, whose mass activity is 3 mA g-1. The methanol oxidation peak at 0.62 V versus Ag/AgCl was also more intense than individual oxides. The trend in performance of methanol oxidation follows the order: Co3O4/CuO > Co3O4 > CuO. In the case of CO2 reduction, we experienced that our product was formate, and this was proved by formate oxidation (formate is formed as a product during the reduction of CO2) on the surface of the Pt ring of a rotating ring-disc electrode. Similar to methanol oxidation, Co3O4/CuO also showed superior activity in carbon dioxide reduction. It was experienced that at -1.5 V, the current density rises to -24 mA/cm2 for the Co3O4/CuO NS, that is, 0.6 times that of the CuO NS, which is -15 mA/cm2, and 3 times more than that of the Co3O4 NS, which is 8 mA/cm2. The trend in performance of CO2 reduction follows the order: Co3O4/CuO > CuO > Co3O4.
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Affiliation(s)
- Roshan Nazir
- Department of Chemical Engineering, Qatar University, P.O. Box 2713, Doha, Qatar
- Department of Chemistry, Bilkent University, Ankara Turkey, 06800 Bilkent, Ankara, Turkey
| | - Alanoud Khalfani
- Department of Chemical Engineering, Qatar University, P.O. Box 2713, Doha, Qatar
| | - Omnia Abdelfattah
- Department of Chemical Engineering, Qatar University, P.O. Box 2713, Doha, Qatar
| | - Anand Kumar
- Department of Chemical Engineering, Qatar University, P.O. Box 2713, Doha, Qatar
| | | | - Sardar Ali
- Gas Processing Center, Qatar University, P.O. Box 2713, Doha, Qatar
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Roca-Ayats M, Yeung K, Hernández-Caricol M, Chen W, Deng R, Fierro J, Lázaro M, Martínez-Huerta M. Titanium carbonitride–graphene composites assembled with organic linkers as electrocatalytic supports for methanol oxidation reaction. Catal Today 2020. [DOI: 10.1016/j.cattod.2019.06.079] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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29
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Abstract
The lithium-sulfur (Li-S) redox battery system is considered to be the most promising next-generation energy storage technology due to its high theoretical specific capacity (1673 mAh g−1), high energy density (2600 Wh kg−1), low cost, and the environmentally friendly nature of sulfur. Though this system is deemed to be the next-generation energy storage device for portable electronics and electric vehicles, its poor cycle life, low coulombic efficiency and low rate capability limit it from practical applications. These performance barriers were linked to several issues like polysulfide (LiPS) shuttle, inherent low conductivity of charge/discharge end products, and poor redox kinetics. Here, we review the recent developments made to alleviate these problems through an electrocatalysis approach, which is considered to be an effective strategy not only to trap the LiPS but also to accelerate their conversion reactions kinetics. Herein, the influence of different chemical interactions between the LiPS and the catalyst surfaces and their effect on the conversion of liquid LiPS to solid end products are reviewed. Finally, we also discussed the challenges and perspectives for designing cathode architectures to enable high sulfur loading along with the capability to rapidly convert the LiPS.
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30
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Nazir R, Kumar A, Ali Saleh Saad M, Ali S. Development of CuAg/Cu2O nanoparticles on carbon nitride surface for methanol oxidation and selective conversion of carbon dioxide into formate. J Colloid Interface Sci 2020; 578:726-737. [DOI: 10.1016/j.jcis.2020.06.033] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 06/05/2020] [Accepted: 06/07/2020] [Indexed: 12/18/2022]
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31
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Gong S, Zhang YX, Niu Z. Recent Advances in Earth-Abundant Core/Noble-Metal Shell Nanoparticles for Electrocatalysis. ACS Catal 2020. [DOI: 10.1021/acscatal.0c02587] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Shuyan Gong
- Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Yu-Xiao Zhang
- Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Zhiqiang Niu
- Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
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32
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Nikiforidis G, Wustoni S, Routier C, Hama A, Koklu A, Saleh A, Steiner N, Druet V, Fiumelli H, Inal S. Benchmarking the Performance of Electropolymerized Poly(3,4-ethylenedioxythiophene) Electrodes for Neural Interfacing. Macromol Biosci 2020; 20:e2000215. [PMID: 32820588 DOI: 10.1002/mabi.202000215] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 08/03/2020] [Indexed: 11/11/2022]
Abstract
The development of electronics adept at interfacing with the nervous system is an ever-growing effort, leading to discoveries in fundamental neuroscience applied in clinical setting. Highly capacitive and electrochemically stable electronic materials are paramount for these advances. A systematic study is presented where copolymers based on 3,4-ethylenedioxythiophene (EDOT) and its hydroxyl-terminated counterpart (EDOTOH) are electropolymerized in an aqueous solution in the presence of various counter anions and additives. Amongst the conducting materials developed, the copolymer p(EDOT-ran-EDOTOH) doped with perchlorate in the presence of ethylene glycol shows high specific capacitance (105 F g-1 ), and capacitance retention (85%) over 1000 galvanostatic charge-discharge cycles. A microelectrode array-based on this material is fabricated and primary cortical neurons are cultured therein for several days. The microelectrodes electrically stimulate targeted neuronal networks and record their activity with high signal-to-noise ratio. The stability of charge injection capacity of the material is validated via long-term pulsing experiments. While providing insights on the effect of additives and dopants on the electrochemical performance and operational stability of electropolymerized conducting polymers, this study highlights the importance of high capacitance accompanied with stability to achieve high performance electrodes for biological interfacing.
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Affiliation(s)
- Georgios Nikiforidis
- Organic Bioelectronics Laboratory, Biological Science and Engineering Division (BESE), King Abdullah University of Science and Engineering (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Shofarul Wustoni
- Organic Bioelectronics Laboratory, Biological Science and Engineering Division (BESE), King Abdullah University of Science and Engineering (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Cyril Routier
- Organic Bioelectronics Laboratory, Biological Science and Engineering Division (BESE), King Abdullah University of Science and Engineering (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Adel Hama
- Organic Bioelectronics Laboratory, Biological Science and Engineering Division (BESE), King Abdullah University of Science and Engineering (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Anil Koklu
- Organic Bioelectronics Laboratory, Biological Science and Engineering Division (BESE), King Abdullah University of Science and Engineering (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Abdulelah Saleh
- Organic Bioelectronics Laboratory, Biological Science and Engineering Division (BESE), King Abdullah University of Science and Engineering (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | | | - Victor Druet
- Organic Bioelectronics Laboratory, Biological Science and Engineering Division (BESE), King Abdullah University of Science and Engineering (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | | | - Sahika Inal
- Organic Bioelectronics Laboratory, Biological Science and Engineering Division (BESE), King Abdullah University of Science and Engineering (KAUST), Thuwal, 23955-6900, Saudi Arabia
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33
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Sustainability Outcomes of Green Processes in Relation to Industry 4.0 in Manufacturing: Systematic Review. SUSTAINABILITY 2020. [DOI: 10.3390/su12155968] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Green processes are very important for the implementation of green technologies in production to achieve positive sustainability outcomes in the Industry 4.0 era. The scope of the paper is to review how conventional green processes as a part of Industry 4.0 provide sustainability outcomes in manufacturing. The paper is based on the methodology of systematic literature review through the content analysis of literary resources. Twenty-nine studies were included in our content analysis. The results show the main focus of current literature related to Industry 4.0, sustainability outcomes and green processes. The authors present a conceptual Sustainability Green Industry 4.0 (SGI 4.0) framework that helps to structure and evaluate conventional green processes in relation to Industry 4.0 and sustainability. The study summarizes which technologies (big data, cyber-physical systems, Industrial Internet of Things and smart systems) and green processes (logistics, manufacturing and product design) are important for achieving a higher level of sustainability. The authors found that the most often common sustainability outcomes are energy saving, emission reduction, resource optimalization, cost reduction, productivity and efficiency and higher economic performance, human resources development, social welfare and workplace safety. The study suggests implications for practice, knowledge and future research.
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34
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Li D, Xing Y, Yang R, Wen T, Jiang D, Shi W, Yuan S. Holey Cobalt-Iron Nitride Nanosheet Arrays as High-Performance Bifunctional Electrocatalysts for Overall Water Splitting. ACS APPLIED MATERIALS & INTERFACES 2020; 12:29253-29263. [PMID: 32498507 DOI: 10.1021/acsami.0c05219] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Designing efficient metal nitride electrocatalysts with advantageous nanostructures toward overall water splitting is of great significance for energy conversion. In this work, holey cobalt-iron nitride nanosheet arrays grown on Ni foam substrate (CoFeNx HNAs/NF) are prepared via a facile hydrothermal and subsequent thermal nitridation method. This unique HNA architecture can not only expose abundant active sites but also facilitate the charge/mass transfer. Resulting from these merits, the CoFeNx HNAs/NF exhibits high catalytic performance with overpotentials of 200 and 260 mV at 10 mA cm-2 for the hydrogen evolution reaction (HER) and 50 mA cm-2 for the oxygen evolution reaction (OER), respectively. Furthermore, when using CoFeNx-500 HNAs/NF as both anode and cathode, the alkaline electrolyzer could afford a current density of 10 mA cm-2 at 1.592 V, higher than many other metal nitride-based electrocatalysts. This work signifies a simple approach to prepare holey metal nitride nanosheet arrays, which can be applied in various fields of energy conversion and storage.
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Affiliation(s)
- Di Li
- Institute for Energy Research, Jiangsu University, Zhenjiang 212013, China
| | - Yingying Xing
- Institute for Energy Research, Jiangsu University, Zhenjiang 212013, China
| | - Rong Yang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Tai Wen
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Deli Jiang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Weidong Shi
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Shouqi Yuan
- Institute for Energy Research, Jiangsu University, Zhenjiang 212013, China
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35
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Wang H, Zhang W, Bai P, Xu L. Ultrasound-assisted transformation from waste biomass to efficient carbon-based metal-free pH-universal oxygen reduction reaction electrocatalysts. ULTRASONICS SONOCHEMISTRY 2020; 65:105048. [PMID: 32203918 DOI: 10.1016/j.ultsonch.2020.105048] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 02/15/2020] [Accepted: 02/27/2020] [Indexed: 06/10/2023]
Abstract
Efficient carbon-based nitrogen-doped electrocatalysts derived from waste biomass are regarded as a promising alternative to noble metal catalysts for oxygen reduction reaction (ORR), which is crucial to fuel cell performance. Here, coconut palm leaves are employed as the carbon source and a series of nitrogen-doped porous carbons were prepared by virtue of a facile and mild ultrasound-assisted method. The obtained carbon material (ANDC-900-10) conveys excellent pH-universal catalytic activity with onset potentials (Eonset) of 1.01, 0.91 and 0.84 V vs. RHE, half-wave potentials (E1/2) of 0.87, 0.74 and 0.66 V vs. RHE and limiting current densities (JL) of 5.50, 5.45 and 4.97 mA cm-2 in alkaline, neutral and acidic electrolytes, respectively, prevailing over the commercial Pt/C catalyst and, what's more, ANDC-900-10 displays preeminent methanol crossover resistance and long-term stability in the broad pH range (0-13), thanks to its abundant hierarchical nanopores as well as effective nitrogen doping with high-density pyridinic-N and graphitic-N. This work provides sonochemical insight for underpinning the eco-friendly approach to rationally designing versatile metal-free carbon-based catalysts toward the ORR at various pH levels.
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Affiliation(s)
- Huifen Wang
- MOE Key Laboratory of Coal Processing and Efficient Utilization, School of Chemical Engineering and Technology, China University of Mining and Technology, 1 Daxue Road, Xuzhou, Jiangsu 221116, China
| | - Wendu Zhang
- MOE Key Laboratory of Coal Processing and Efficient Utilization, School of Chemical Engineering and Technology, China University of Mining and Technology, 1 Daxue Road, Xuzhou, Jiangsu 221116, China
| | - Peiyao Bai
- MOE Key Laboratory of Coal Processing and Efficient Utilization, School of Chemical Engineering and Technology, China University of Mining and Technology, 1 Daxue Road, Xuzhou, Jiangsu 221116, China
| | - Lang Xu
- MOE Key Laboratory of Coal Processing and Efficient Utilization, School of Chemical Engineering and Technology, China University of Mining and Technology, 1 Daxue Road, Xuzhou, Jiangsu 221116, China.
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36
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Sun K, Zhang T, Tan L, Zhou D, Qian Y, Gao X, Song F, Bian H, Lu Z, Dang J, Gao H, Shaw J, Chen S, Chen G, Rao Y. Interface Catalysts of Ni/Co 2N for Hydrogen Electrochemistry. ACS APPLIED MATERIALS & INTERFACES 2020; 12:29357-29364. [PMID: 32501672 DOI: 10.1021/acsami.0c06644] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The development of active, durable, and nonprecious electrocatalysts for hydrogen electrochemistry is highly desirable but challenging. In this work, we design and fabricate a novel interface catalyst of Ni and Co2N (Ni/Co2N) for hydrogen evolution reaction (HER) and hydrogen oxidation reaction (HOR). The Ni/Co2N interfacial catalysts not only achieve a current density of -10.0 mA cm-2 with an overpotential of 16.2 mV for HER but also provide a HOR current density of 2.35 mA cm-2 at 0.1 V vs reversible hydrogen electrode (RHE). Furthermore, the electrode couple made of the Ni/Co2N interfacial catalysts requires only a cell voltage of 1.57 V to gain a current density of 10 mA cm-2 for overall water splitting. Hybridizations in the three elements of Ni-3d, N-2p, and Co-3d result in charge transfer in the interfacial junction of the Ni and Co2N materials. Our density functional theory calculations show that both the interfacial N and Co sites of Ni/Co2N prefer to hydrogen adsorption in the hydrogen catalytic activities. This study provides a new approach for the construction of multifunctional catalysts for hydrogen electrochemistry.
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Affiliation(s)
- Kaixi Sun
- Key Laboratory of Pesticide & Chemical Biology Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, Hubei 430079, China
- Department of Chemistry and Biochemistry, Utah State University, Logan, Utah 84322, United States
| | - Tong Zhang
- Department of Chemistry and Biochemistry, Utah State University, Logan, Utah 84322, United States
- Beijing National Laboratory for Molecular Sciences and State Key Laboratory of Molecular Reaction Dynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Liming Tan
- Department of Chemistry and Biochemistry, Utah State University, Logan, Utah 84322, United States
| | - Dexia Zhou
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China
| | - Yuqin Qian
- Department of Chemistry and Biochemistry, Utah State University, Logan, Utah 84322, United States
| | - Xiaoxia Gao
- Key Laboratory of Pesticide & Chemical Biology Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, Hubei 430079, China
| | - Fahui Song
- Key Laboratory of Pesticide & Chemical Biology Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, Hubei 430079, China
| | - Hongtao Bian
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China
| | - Zhou Lu
- Anhui Province Key Laboratory of Optoelectronic Material Science and Technology, School of Physics of Electronic Information, Anhui Normal University, Wuhu, Anhui 241002, China
| | - Jingshuang Dang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China
| | - Hong Gao
- Beijing National Laboratory for Molecular Sciences and State Key Laboratory of Molecular Reaction Dynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Jeremy Shaw
- Key Laboratory of Pesticide & Chemical Biology Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, Hubei 430079, China
| | - Shutang Chen
- Honda Research Institute, USA, Inc., San Jose, California 95134, United States
| | - Gugang Chen
- Honda Research Institute, USA, Inc., San Jose, California 95134, United States
| | - Yi Rao
- Department of Chemistry and Biochemistry, Utah State University, Logan, Utah 84322, United States
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37
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Defect-controlled Fe-N-doped carbon nanofiber by ball-milling for oxygen reduction reaction. KOREAN J CHEM ENG 2020. [DOI: 10.1007/s11814-020-0522-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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38
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Golmohammadi F, Amiri M. Fabrication of MEA from Biomass-Based Carbon Nanofibers Composited with Nickel-Cobalt Oxides as a New Electrocatalyst for Oxygen Reduction Reaction in Passive Direct Methanol Fuel Cells. Electrocatalysis (N Y) 2020. [DOI: 10.1007/s12678-020-00607-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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39
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Ultrasound supported synthesis of tantalum carbide integrated functionalized carbon composite for the voltammetric determination of the antibacterial drug nitrofurantoin in pharmaceutical samples. Mikrochim Acta 2020; 187:342. [DOI: 10.1007/s00604-020-04314-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Accepted: 05/08/2020] [Indexed: 01/07/2023]
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40
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Qi W, Meng X, Adimi S, Guo H, Thomas T, Li F, Jiang H, Liu S, Yang M. A size tunable bimetallic nickel-zinc nitride as a multi-functional co-catalyst on nitrogen doped titania boosts solar energy conversion. Dalton Trans 2020; 49:4887-4895. [PMID: 32227002 DOI: 10.1039/d0dt00657b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
To enable high-efficiency solar energy conversion, rational design and preparation of low cost and stable semiconductor photocatalysts with associated co-catalysts are desirable. However preparation of efficient catalytic systems remains a challenge. Here, N-doped TiO2/ternary nickel-zinc nitride (N-TiO2-Ni3ZnN) nanocomposites have been shown to be a multi-functional catalyst for photocatalytic reactions. The particle size of Ni3ZnN can be readily tuned using N-TiO2 nanospheres as the active support. Due to its high conductivity and Pt-like properties, Ni3ZnN promotes charge separation and transfer, as well as reaction kinetics. The material shows co-catalytic performance relevant for multiple reactions, demonstrating its multifunctionality. Density functional theory (DFT) based calculations confirm the intrinsic metallic properties of Ni3ZnN. N-TiO2-Ni3ZnN exhibits evidently improved photocatalytic performances as compared to N-TiO2 under visible light irradiation.
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Affiliation(s)
- Weiliang Qi
- Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo 315201, P. R. China. and Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Xiangjian Meng
- Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo 315201, P. R. China. and Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Samira Adimi
- Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo 315201, P. R. China. and Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Haichuan Guo
- Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo 315201, P. R. China. and Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Tiju Thomas
- Department of Metallurgical and Materials Engineering, Indian Institute of Technology Madras, Adyar, Chennai 600036, Tamil Nadu, India
| | - Fei Li
- College of Chemistry, Chemical Engineering and Environment Engineering, Liaoning Shihua University, Fushun 113001, China
| | - Heng Jiang
- College of Chemistry, Chemical Engineering and Environment Engineering, Liaoning Shihua University, Fushun 113001, China
| | - Siqi Liu
- Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo 315201, P. R. China. and Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Minghui Yang
- Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo 315201, P. R. China. and Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
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41
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Zhang H, Xia W, Shen H, Guo W, Liang Z, Zhang K, Wu Y, Zhu B, Zou R. Antiperovskite Intermetallic Nanoparticles for Enhanced Oxygen Reduction. Angew Chem Int Ed Engl 2020; 59:1871-1877. [DOI: 10.1002/anie.201911943] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Indexed: 11/10/2022]
Affiliation(s)
- Hao Zhang
- Beijing Key Laboratory for Theory and Technology of Advanced Battery MaterialsDepartment of Materials Science and EngineeringCollege of EngineeringPeking University Beijing 100871 China
| | - Wei Xia
- Beijing Key Laboratory for Theory and Technology of Advanced Battery MaterialsDepartment of Materials Science and EngineeringCollege of EngineeringPeking University Beijing 100871 China
| | - Haoming Shen
- Beijing Key Laboratory for Theory and Technology of Advanced Battery MaterialsDepartment of Materials Science and EngineeringCollege of EngineeringPeking University Beijing 100871 China
| | - Wenhan Guo
- Beijing Key Laboratory for Theory and Technology of Advanced Battery MaterialsDepartment of Materials Science and EngineeringCollege of EngineeringPeking University Beijing 100871 China
| | - Zibin Liang
- Beijing Key Laboratory for Theory and Technology of Advanced Battery MaterialsDepartment of Materials Science and EngineeringCollege of EngineeringPeking University Beijing 100871 China
| | - Kexin Zhang
- Beijing Key Laboratory for Theory and Technology of Advanced Battery MaterialsDepartment of Materials Science and EngineeringCollege of EngineeringPeking University Beijing 100871 China
| | - Yingxiao Wu
- Beijing Key Laboratory for Theory and Technology of Advanced Battery MaterialsDepartment of Materials Science and EngineeringCollege of EngineeringPeking University Beijing 100871 China
| | - Bingjun Zhu
- Beijing Key Laboratory for Theory and Technology of Advanced Battery MaterialsDepartment of Materials Science and EngineeringCollege of EngineeringPeking University Beijing 100871 China
| | - Ruqiang Zou
- Beijing Key Laboratory for Theory and Technology of Advanced Battery MaterialsDepartment of Materials Science and EngineeringCollege of EngineeringPeking University Beijing 100871 China
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42
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Zhang H, Xia W, Shen H, Guo W, Liang Z, Zhang K, Wu Y, Zhu B, Zou R. Antiperovskite Intermetallic Nanoparticles for Enhanced Oxygen Reduction. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201911943] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Hao Zhang
- Beijing Key Laboratory for Theory and Technology of Advanced Battery MaterialsDepartment of Materials Science and EngineeringCollege of EngineeringPeking University Beijing 100871 China
| | - Wei Xia
- Beijing Key Laboratory for Theory and Technology of Advanced Battery MaterialsDepartment of Materials Science and EngineeringCollege of EngineeringPeking University Beijing 100871 China
| | - Haoming Shen
- Beijing Key Laboratory for Theory and Technology of Advanced Battery MaterialsDepartment of Materials Science and EngineeringCollege of EngineeringPeking University Beijing 100871 China
| | - Wenhan Guo
- Beijing Key Laboratory for Theory and Technology of Advanced Battery MaterialsDepartment of Materials Science and EngineeringCollege of EngineeringPeking University Beijing 100871 China
| | - Zibin Liang
- Beijing Key Laboratory for Theory and Technology of Advanced Battery MaterialsDepartment of Materials Science and EngineeringCollege of EngineeringPeking University Beijing 100871 China
| | - Kexin Zhang
- Beijing Key Laboratory for Theory and Technology of Advanced Battery MaterialsDepartment of Materials Science and EngineeringCollege of EngineeringPeking University Beijing 100871 China
| | - Yingxiao Wu
- Beijing Key Laboratory for Theory and Technology of Advanced Battery MaterialsDepartment of Materials Science and EngineeringCollege of EngineeringPeking University Beijing 100871 China
| | - Bingjun Zhu
- Beijing Key Laboratory for Theory and Technology of Advanced Battery MaterialsDepartment of Materials Science and EngineeringCollege of EngineeringPeking University Beijing 100871 China
| | - Ruqiang Zou
- Beijing Key Laboratory for Theory and Technology of Advanced Battery MaterialsDepartment of Materials Science and EngineeringCollege of EngineeringPeking University Beijing 100871 China
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43
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Ye Z, Qie Y, Fan Z, Liu Y, Chen X, Shi Z, Yang H. Synthesis, Morphology and Magnetic Properties of Fe
3
C/CNTs Composites by a g‐C
3
N
4
Route. ChemistrySelect 2019. [DOI: 10.1002/slct.201902702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Zhantong Ye
- College of ChemistryJilin University Changchun 130012 PR China
| | - Yaqin Qie
- College of ChemistryJilin University Changchun 130012 PR China
| | - Zhipeng Fan
- College of ChemistryJilin University Changchun 130012 PR China
| | - Yixuan Liu
- College of ChemistryJilin University Changchun 130012 PR China
| | - Xiaodong Chen
- College of ChemistryJilin University Changchun 130012 PR China
| | - Zhan Shi
- State Key Laboratory of Inorganic Synthesis and Preparative ChemistryCollege of ChemistryJilin University Changchun 130012 PR China
| | - Hua Yang
- College of ChemistryJilin University Changchun 130012 PR China
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44
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Li S, Liu J, Yin Z, Ren P, Lin L, Gong Y, Yang C, Zheng X, Cao R, Yao S, Deng Y, Liu X, Gu L, Zhou W, Zhu J, Wen X, Xu B, Ma D. Impact of the Coordination Environment on Atomically Dispersed Pt Catalysts for Oxygen Reduction Reaction. ACS Catal 2019. [DOI: 10.1021/acscatal.9b04558] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Siwei Li
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering and College of Engineering, and BIC-ESAT, Peking University, Beijing 100871, P. R. China
| | - Jinjia Liu
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, CAS, Taiyuan 030000, China
- Syncat@Beijing, Synfuels China Technology Company, Ltd, Beijing 101407, China
| | - Zhen Yin
- Tianjin Key Laboratory of Green Chemical Technology and Process Engineering, School of Chemistry and Chemical Engineering, Tianjin Polytechnic University, Tianjin 300387, China
| | - Pengju Ren
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, CAS, Taiyuan 030000, China
- Syncat@Beijing, Synfuels China Technology Company, Ltd, Beijing 101407, China
| | - Lili Lin
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering and College of Engineering, and BIC-ESAT, Peking University, Beijing 100871, P. R. China
| | - Yue Gong
- Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
| | - Ce Yang
- Chemical Science and Engineering Division, Argonne National Laboratory, 9700 S. Cass Avenue, Argonne 60439, United States
| | - Xusheng Zheng
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China
| | - Ruochen Cao
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering and College of Engineering, and BIC-ESAT, Peking University, Beijing 100871, P. R. China
| | - Siyu Yao
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering and College of Engineering, and BIC-ESAT, Peking University, Beijing 100871, P. R. China
| | - Yuchen Deng
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering and College of Engineering, and BIC-ESAT, Peking University, Beijing 100871, P. R. China
| | - Xi Liu
- Syncat@Beijing, Synfuels China Technology Company, Ltd, Beijing 101407, China
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Lin Gu
- Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
| | - Wu Zhou
- School of Physical Sciences and CAS Center for Excellence in Topological Quantum Computation, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Junfa Zhu
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029, China
| | - Xiaodong Wen
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, CAS, Taiyuan 030000, China
- Syncat@Beijing, Synfuels China Technology Company, Ltd, Beijing 101407, China
| | - Bingjun Xu
- Department of Chemical and Biomolecular Engineering, Center for Catalytic Science and Technology, University of Delaware, 150 Academy Street, Newark, Delaware 19716, United States
| | - Ding Ma
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering and College of Engineering, and BIC-ESAT, Peking University, Beijing 100871, P. R. China
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Ansari MZ, Nandi DK, Janicek P, Ansari SA, Ramesh R, Cheon T, Shong B, Kim SH. Low-Temperature Atomic Layer Deposition of Highly Conformal Tin Nitride Thin Films for Energy Storage Devices. ACS APPLIED MATERIALS & INTERFACES 2019; 11:43608-43621. [PMID: 31633331 DOI: 10.1021/acsami.9b15790] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
We present an atomic layer deposition (ALD) process for the synthesis of tin nitride (SnNx) thin films using tetrakis(dimethylamino) tin (TDMASn, Sn(NMe2)4) and ammonia (NH3) as the precursors at low deposition temperatures (70-200 °C). This newly developed ALD scheme exhibits ideal ALD features such as self-limited film growth at 150 °C. The growth per cycle (GPC) was found to be ∼0.21 nm/cycle at 70 °C, which decreased with increasing deposition temperature. Interestingly, when the deposition temperature was between 125 and 180 °C, the GPC remained almost constant at ∼0.10 nm/cycle, which suggests an ALD temperature window, whereas upon further increasing the temperature to 200 °C, the GPC considerably decreased to ∼0.04 nm/cycle. Thermodynamic analysis via density functional theory calculations showed that the self-saturation of TDMASn would occur on an NH2-terminated surface. Moreover, it also suggests that the condensation of a molecular precursor and the desorption of surface *NH2 moieties would occur at lower and higher temperatures outside the ALD window, respectively. Thanks to the characteristics of ALD, this process could be used to conformally and uniformly deposit SnNx onto an ultranarrow dual-trench Si structure (minimum width: 15 nm; aspect ratio: ∼6.3) with ∼100% step coverage. Several analysis tools such as transmission electron microscopy, X-ray diffraction (XRD), X-ray photoelectron spectroscopy, Rutherford backscattering spectrometry, and secondary-ion mass spectrometry were used to characterize the film properties under different deposition conditions. XRD showed that a hexagonal SnN phase was obtained at a relatively low deposition temperature (100-150 °C), whereas cubic Sn3N4 was formed at a higher deposition temperature (175-200 °C). The stoichiometry of these thermally grown ALD-SnNx films (Sn-to-N ratio) deposited at 150 °C was determined to be ∼1:0.93 with negligible impurities. The optoelectronic properties of the SnNx films, such as the band gap, wavelength-dependent refractive index, extinction coefficient, carrier concentration, and mobility, were further evaluated via spectroscopic ellipsometry analysis. Finally, ALD-SnNx-coated Ni-foam (NF) and hollow carbon nanofibers were successfully used as free-standing electrodes in electrochemical supercapacitors and in Li-ion batteries, which showed a higher charge-storage time (about eight times greater than that of the uncoated NF) and a specific capacity of ∼520 mAh/g after 100 cycles at 0.1 A/g, respectively. This enhanced performance might be due to the uniform coverage of these substrates by ALD-SnNx, which ensures good electric contact and mechanical stability during electrochemical reactions.
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Affiliation(s)
- Mohd Zahid Ansari
- School of Materials Science and Engineering , Yeungnam University , Gyeongsan 712-749 , Korea
| | - Dip K Nandi
- School of Materials Science and Engineering , Yeungnam University , Gyeongsan 712-749 , Korea
| | - Petr Janicek
- Institute of Applied Physics and Mathematics, Faculty of Chemical Technology , University of Pardubice , Studentska 95 , Pardubice 532 10 , Czech Republic
- Center of Materials and Nanotechnologies, Faculty of Chemical Technology , University of Pardubice , Studentska 95 , Pardubice 532 10 , Czech Republic
| | - Sajid Ali Ansari
- Department of Physics, College of Science , King Faisal University , Al-Ahsa 31982 , Kingdom of Saudi Arabia
| | - Rahul Ramesh
- School of Materials Science and Engineering , Yeungnam University , Gyeongsan 712-749 , Korea
| | - Taehoon Cheon
- School of Materials Science and Engineering , Yeungnam University , Gyeongsan 712-749 , Korea
- Center for Core Research Facilities , Daegu Gyeongbuk Institute of Science & Technology , Sang-ri, Hyeonpung-myeon, Dalseong-gun, Daegu 711-873 , Republic of Korea
| | - Bonggeun Shong
- Department of Chemical Engineering , Hongik University , Mapo-gu, Seoul 04066 , Republic of Korea
| | - Soo-Hyun Kim
- School of Materials Science and Engineering , Yeungnam University , Gyeongsan 712-749 , Korea
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46
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Zhu J, Hu L, Zhao P, Lee LYS, Wong KY. Recent Advances in Electrocatalytic Hydrogen Evolution Using Nanoparticles. Chem Rev 2019; 120:851-918. [DOI: 10.1021/acs.chemrev.9b00248] [Citation(s) in RCA: 946] [Impact Index Per Article: 189.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Jing Zhu
- Institute of Materials, China Academy of Engineering Physics, No. 9, Huafengxincun, Jiangyou City, Sichuan Province 621908, P. R. China
| | - Liangsheng Hu
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, P. R. China
- Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Guangdong 515063, P. R. China
| | - Pengxiang Zhao
- Institute of Materials, China Academy of Engineering Physics, No. 9, Huafengxincun, Jiangyou City, Sichuan Province 621908, P. R. China
| | - Lawrence Yoon Suk Lee
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, P. R. China
| | - Kwok-Yin Wong
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, P. R. China
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Microwave Enthrakometric Labs-On-A-Chip and On-Chip Enthrakometric Catalymetry: From Non-Conventional Chemotronics Towards Microwave-Assisted Chemosensors. CHEMOSENSORS 2019. [DOI: 10.3390/chemosensors7040048] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A unique chemical analytical approach is proposed based on the integration of chemical radiophysics with electrochemistry at the catalytically-active surface. This approach includes integration of: radiofrequency modulation polarography with platinum electrodes, applied as film enthrakometers for microwave measurements; microwave thermal analysis performed on enthrakometers as bolometric sensors; catalytic measurements, including registration of chemical self-oscillations on the surface of a platinum enthrakometer as the chemosensor; measurements on the Pt chemosensor implemented as an electrochemical chip with the enthrakometer walls acting as the chip walls; chemotron measurements and data processing in real time on the surface of the enthrakometric chip; microwave electron paramagnetic resonance (EPR) measurements using an enthrakometer both as a substrate and a microwave power meter; microwave acceleration of chemical reactions and microwave catalysis оn the Pt surface; chemical generation of radio- and microwaves, and microwave spin catalysis; and magnetic isotope measurements on the enthrakometric chip. The above approach allows one to perform multiparametric physical and electrochemical sensing on a single active enthrakometric surface, combining the properties of the selective electrochemical sensor and an additive physical detector.
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Defilippi C, Shinde DV, Dang Z, Manna L, Hardacre C, Greer AJ, D'Agostino C, Giordano C. HfN Nanoparticles: An Unexplored Catalyst for the Electrocatalytic Oxygen Evolution Reaction. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201908758] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Chiara Defilippi
- School of Biological and Chemical Sciences Chemistry Department Queen Mary University of London Mile End Road London E1 4NS UK
| | - Dipak V. Shinde
- Nanochemistry Department Istituto Italiano di Tecnologia via Morego 30 16163 Genova Italy
| | - Zhiya Dang
- Nanochemistry Department Istituto Italiano di Tecnologia via Morego 30 16163 Genova Italy
| | - Liberato Manna
- Nanochemistry Department Istituto Italiano di Tecnologia via Morego 30 16163 Genova Italy
| | - Christopher Hardacre
- Department of Chemical Engineering and Analytical Science The University of Manchester The Mill, Sackville Street Manchester M13 9PL UK
| | - Adam J. Greer
- Department of Chemical Engineering and Analytical Science The University of Manchester The Mill, Sackville Street Manchester M13 9PL UK
| | - Carmine D'Agostino
- Department of Chemical Engineering and Analytical Science The University of Manchester The Mill, Sackville Street Manchester M13 9PL UK
| | - Cristina Giordano
- School of Biological and Chemical Sciences Chemistry Department Queen Mary University of London Mile End Road London E1 4NS UK
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49
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Defilippi C, Shinde DV, Dang Z, Manna L, Hardacre C, Greer AJ, D'Agostino C, Giordano C. HfN Nanoparticles: An Unexplored Catalyst for the Electrocatalytic Oxygen Evolution Reaction. Angew Chem Int Ed Engl 2019; 58:15464-15470. [PMID: 31437350 DOI: 10.1002/anie.201908758] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Revised: 08/15/2019] [Indexed: 11/08/2022]
Abstract
Water electrolysis is one of the most promising methods to produce H2 and O2 as high potential fuels. Comparing the two half-reactions, the oxygen evolution reaction (OER) is the more difficult to be optimized and still relies on expensive noble metal-based catalysts such as Ru or Ir. In this paper, we prepared nanoparticles of HfN and Hf2 ON2 and tested them for the OER for the first time. The HfN sample, in particular, showed the highest activity, requiring an overpotential of only 358 mV at 10 mA cm-2 in Fe-free electrolyte and, above all, exhibiting long-term stability. This result places this system amongst one of the most promising catalysts for OER tested to date, in terms of sustainability, activity and stability. The prepared nanoparticles are small (less than 15 nm in diameter), well-defined in shape and crystalline, and were characterised before and after electrochemical testing also via electron microscopy (EM), powder X-ray diffraction (PXRD) and X-ray photoelectron spectroscopy (XPS).
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Affiliation(s)
- Chiara Defilippi
- School of Biological and Chemical Sciences, Chemistry Department, Queen Mary University of London, Mile End Road, London, E1 4NS, UK
| | - Dipak V Shinde
- Nanochemistry Department, Istituto Italiano di Tecnologia, via Morego 30, 16163, Genova, Italy
| | - Zhiya Dang
- Nanochemistry Department, Istituto Italiano di Tecnologia, via Morego 30, 16163, Genova, Italy
| | - Liberato Manna
- Nanochemistry Department, Istituto Italiano di Tecnologia, via Morego 30, 16163, Genova, Italy
| | - Christopher Hardacre
- Department of Chemical Engineering and Analytical Science, The University of Manchester, The Mill, Sackville Street, Manchester, M13 9PL, UK
| | - Adam J Greer
- Department of Chemical Engineering and Analytical Science, The University of Manchester, The Mill, Sackville Street, Manchester, M13 9PL, UK
| | - Carmine D'Agostino
- Department of Chemical Engineering and Analytical Science, The University of Manchester, The Mill, Sackville Street, Manchester, M13 9PL, UK
| | - Cristina Giordano
- School of Biological and Chemical Sciences, Chemistry Department, Queen Mary University of London, Mile End Road, London, E1 4NS, UK
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50
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Ushakov SV, Navrotsky A, Hong QJ, van de Walle A. Carbides and Nitrides of Zirconium and Hafnium. MATERIALS 2019; 12:ma12172728. [PMID: 31454900 PMCID: PMC6747801 DOI: 10.3390/ma12172728] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 08/21/2019] [Accepted: 08/22/2019] [Indexed: 01/13/2023]
Abstract
Among transition metal carbides and nitrides, zirconium, and hafnium compounds are the most stable and have the highest melting temperatures. Here we review published data on phases and phase equilibria in Hf-Zr-C-N-O system, from experiment and ab initio computations with focus on rocksalt Zr and Hf carbides and nitrides, their solid solutions and oxygen solubility limits. The systematic experimental studies on phase equilibria and thermodynamics were performed mainly 40–60 years ago, mostly for binary systems of Zr and Hf with C and N. Since then, synthesis of several oxynitrides was reported in the fluorite-derivative type of structures, of orthorhombic and cubic higher nitrides Zr3N4 and Hf3N4. An ever-increasing stream of data is provided by ab initio computations, and one of the testable predictions is that the rocksalt HfC0.75N0.22 phase would have the highest known melting temperature. Experimental data on melting temperatures of hafnium carbonitrides are absent, but minimum in heat capacity and maximum in hardness were reported for Hf(C,N) solid solutions. New methods, such as electrical pulse heating and laser melting, can fill the gaps in experimental data and validate ab initio predictions.
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Affiliation(s)
- Sergey V Ushakov
- Peter A. Rock Thermochemistry Laboratory and NEAT ORU, University of California at Davis, Davis, CA 95616, USA.
| | - Alexandra Navrotsky
- Peter A. Rock Thermochemistry Laboratory and NEAT ORU, University of California at Davis, Davis, CA 95616, USA.
| | - Qi-Jun Hong
- School of Engineering, Brown University, Providence, RI 02912, USA.
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