1
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Kishore MRA, Lee S, Yoo JS. A Density Functional Theory Analysis of Electrochemical Oxidation of Methane to Alcohol over High-Entropy Oxide (CoCrFeMnNi) 3O 4 Catalysts. Chemphyschem 2024; 25:e202400098. [PMID: 38546734 DOI: 10.1002/cphc.202400098] [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: 01/31/2024] [Revised: 03/28/2024] [Indexed: 05/04/2024]
Abstract
The direct conversion of methane into alcohol is a promising approach for achieving a low-carbon future, yet it remains a major challenge. In this study, we utilize density functional theory to explore the potential of the (CoCrFeMnNi)3O4 (CCFMNO) high entropy oxide (HEO) for electrochemical oxidation of methane to methanol and ethanol, alongside their competition with CO2 production. Our primary focus in this study is on thermodynamics, enabling a prompt analysis of the catalyst's potential, with the calculation of electrochemical barriers falling beyond our scope. Among all potential active sites within CCFMNO HEO, we identify Co as the most active site for methane activation when using carbonate ions as oxidants. This results in methanol production with a limiting potential of 1.4 VCHE, and ethanol and CO2 productions with a limiting potential of 1.2 VCHE. Additionally, our findings suggest that the occupied p-band center of O* on CCFMNO HEO is a potential descriptor for identifying the most active site within CCFMNO HEO. Overall, our results indicate that CCFMNO HEO holds promise as catalysts for methane oxidation to alcohols, employing carbonate ions as oxidants.
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Affiliation(s)
- M R Ashwin Kishore
- Department of Chemical Engineering, University of Seoul, Seoul, 02504, Republic of Korea
| | - Sungwoo Lee
- Department of Chemical Engineering, University of Seoul, Seoul, 02504, Republic of Korea
| | - Jong Suk Yoo
- Department of Chemical Engineering, University of Seoul, Seoul, 02504, Republic of Korea
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2
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Araujo RB, Edvinsson T. Supervised AI and Deep Neural Networks to Evaluate High-Entropy Alloys as Reduction Catalysts in Aqueous Environments. ACS Catal 2024; 14:3742-3755. [PMID: 38510666 PMCID: PMC10949192 DOI: 10.1021/acscatal.3c05017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 02/04/2024] [Accepted: 02/07/2024] [Indexed: 03/22/2024]
Abstract
Competitive surface adsorption energies on catalytic surfaces constitute a fundamental aspect of modeling electrochemical reactions in aqueous environments. The conventional approach to this task relies on applying density functional theory, albeit with computationally intensive demands, particularly when dealing with intricate surfaces. In this study, we present a methodological exposition of quantifying competitive relationships within complex systems. Our methodology leverages quantum-mechanical-guided deep neural networks, deployed in the investigation of quinary high-entropy alloys composed of Mo-Cr-Mn-Fe-Co-Ni-Cu-Zn. These alloys are under examination as prospective electrocatalysts, facilitating the electrochemical synthesis of ammonia in aqueous media. Even in the most favorable scenario for nitrogen fixation identified in this study, at the transition from O and OH coverage to surface hydrogenation, the probability of N2 coverage remains low. This underscores the fact that catalyst optimization alone is insufficient for achieving efficient nitrogen reduction. In particular, these insights illuminate that system consideration with oxygen- and hydrogen-repelling approaches or high-pressure solutions would be necessary for improved nitrogen reduction within an aqueous environment.
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Affiliation(s)
- Rafael B. Araujo
- Department
of Materials Science and Engineering, Solid State Physics, Uppsala University, Box 35, 75103 Uppsala, Sweden
| | - Tomas Edvinsson
- Department
of Materials Science and Engineering, Solid State Physics, Uppsala University, Box 35, 75103 Uppsala, Sweden
- Energy
Materials Laboratory, School of Natural and Environmental Science, Newcastle University, NE1 7RU Newcastle Upon Tyne, U.K.
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3
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Fan RY, Zhang YS, Lv JY, Han GQ, Chai YM, Dong B. The Promising Seesaw Relationship Between Activity and Stability of Ru-Based Electrocatalysts for Acid Oxygen Evolution and Proton Exchange Membrane Water Electrolysis. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2304636. [PMID: 37789503 DOI: 10.1002/smll.202304636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 08/09/2023] [Indexed: 10/05/2023]
Abstract
The development of electrocatalysts that are not reliant on iridium for efficient acid-oxygen evolution is a critical step towards the proton exchange membrane water electrolysis (PEMWE) and green hydrogen industry. Ruthenium-based electrocatalysts have garnered widespread attention due to their remarkable catalytic activity and lower commercial price. However, the challenge lies in balancing the seesaw relationship between activity and stability of these electrocatalysts during the acid-oxygen evolution reaction (OER). This review delves into the progress made in Ru-based electrocatalysts with regards to acid OER and PEMWE applications. It highlights the significance of customizing the acidic OER mechanism of Ru-based electrocatalysts through the coordination of adsorption evolution mechanism (AEM) and lattice oxygen oxidation mechanism (LOM) to attain the ideal activity and stability relationship. The promising tradeoffs between the activity and stability of different Ru-based electrocatalysts, including Ru metals and alloys, Ru single-atomic materials, Ru oxides, and derived complexes, and Ru-based heterojunctions, as well as their applicability to PEMWE systems, are discussed in detail. Furthermore, this paper offers insights on in situ control of Ru active sites, dynamic catalytic mechanism, and commercial application of PEMWE. Based on three-way relationship between cost, activity, and stability, the perspectives and development are provided.
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Affiliation(s)
- Ruo-Yao Fan
- State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao, 266580, P. R. China
| | - Yu-Sheng Zhang
- State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao, 266580, P. R. China
| | - Jing-Yi Lv
- State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao, 266580, P. R. China
| | - Guan-Qun Han
- Department of Chemistry, University of Cincinnati, Cincinnati, Ohio, 45221, USA
| | - Yong-Ming Chai
- State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao, 266580, P. R. China
| | - Bin Dong
- State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao, 266580, P. R. China
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4
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Wang C, Fei Z, Wang Y, Ren F, Du Y. Recent progress of Ni-based nanomaterials for the electrocatalytic oxygen evolution reaction at large current density. Dalton Trans 2024; 53:851-861. [PMID: 38054822 DOI: 10.1039/d3dt03636g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2023]
Abstract
The precise design and development of high-performing oxygen evolution reaction (OER) for the production of industrial hydrogen gas through water electrolysis has been a widely studied topic. A profound understanding of the nature of electrocatalytic processes reveals that Ni-based catalysts are highly active toward OER that can stably operate at a high current density for a long period of time. Given the current gap between research and applications in industrial water electrolysis, we have completed a systematic review by constructively discussing the recent progress of Ni-based catalysts for electrocatalytic OER at a large current density, with special focus on the morphology and composition regulation of Ni-based electrocatalysts for achieving extraordinary OER performance. This review will facilitate future research toward rationally designing next-generation OER electrocatalysts that can meet industrial demands, thereby promoting new sustainable solutions for energy shortage and environment issues.
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Affiliation(s)
- Cheng Wang
- College of Chemical and Environmental Engineering, Yancheng Teachers University, Yancheng 224002, P. R. China.
| | - Zhenghao Fei
- College of Chemical and Environmental Engineering, Yancheng Teachers University, Yancheng 224002, P. R. China.
| | - Yanqing Wang
- College of Chemical and Environmental Engineering, Yancheng Teachers University, Yancheng 224002, P. R. China.
| | - Fangfang Ren
- College of Chemical and Environmental Engineering, Yancheng Teachers University, Yancheng 224002, P. R. China.
| | - Yukou Du
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, Jiangsu, China.
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5
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Ren JT, Chen L, Wang HY, Yuan ZY. High-entropy alloys in electrocatalysis: from fundamentals to applications. Chem Soc Rev 2023; 52:8319-8373. [PMID: 37920962 DOI: 10.1039/d3cs00557g] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2023]
Abstract
High-entropy alloys (HEAs) comprising five or more elements in near-equiatomic proportions have attracted ever increasing attention for their distinctive properties, such as exceptional strength, corrosion resistance, high hardness, and excellent ductility. The presence of multiple adjacent elements in HEAs provides unique opportunities for novel and adaptable active sites. By carefully selecting the element configuration and composition, these active sites can be optimized for specific purposes. Recently, HEAs have been shown to exhibit remarkable performance in electrocatalytic reactions. Further activity improvement of HEAs is necessary to determine their active sites, investigate the interactions between constituent elements, and understand the reaction mechanisms. Accordingly, a comprehensive review is imperative to capture the advancements in this burgeoning field. In this review, we provide a detailed account of the recent advances in synthetic methods, design principles, and characterization technologies for HEA-based electrocatalysts. Moreover, we discuss the diverse applications of HEAs in electrocatalytic energy conversion reactions, including the hydrogen evolution reaction, hydrogen oxidation reaction, oxygen reduction reaction, oxygen evolution reaction, carbon dioxide reduction reaction, nitrogen reduction reaction, and alcohol oxidation reaction. By comprehensively covering these topics, we aim to elucidate the intricacies of active sites, constituent element interactions, and reaction mechanisms associated with HEAs. Finally, we underscore the imminent challenges and emphasize the significance of both experimental and theoretical perspectives, as well as the potential applications of HEAs in catalysis. We anticipate that this review will encourage further exploration and development of HEAs in electrochemistry-related applications.
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Affiliation(s)
- Jin-Tao Ren
- National Institute for Advanced Materials, School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Nankai University, Tianjin 300350, China.
| | - Lei Chen
- National Institute for Advanced Materials, School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Nankai University, Tianjin 300350, China.
| | - Hao-Yu Wang
- National Institute for Advanced Materials, School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Nankai University, Tianjin 300350, China.
| | - Zhong-Yong Yuan
- National Institute for Advanced Materials, School of Materials Science and Engineering, Smart Sensing Interdisciplinary Science Center, Nankai University, Tianjin 300350, China.
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin 300071, China
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6
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Tao L, Huang B, Zhao Y. Low-Dimensional High-Entropy Alloys for Advanced Electrocatalytic Reactions. CHEM REC 2023; 23:e202300097. [PMID: 37236145 DOI: 10.1002/tcr.202300097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 05/11/2023] [Indexed: 05/28/2023]
Abstract
Low-dimensional high-entropy alloy (HEA) nanomaterials are widely employed as electrocatalysts for energy conversion reactions, due to their inherent advantages, including high electron mobility, rich catalytically active site, optimal electronic structure. Moreover, the high-entropy, lattice distortion, and sluggish diffusion effects also enable them to be promising electrocatalysts. A thorough understanding on the structure-activity relationships of low-dimensional HEA catalyst play a huge role in the future pursuit of more efficient electrocatalysts. In this review, we summarize the recent progress of low-dimensional HEA nanomaterials for efficient catalytic energy conversion. By systematically discussing the fundamentals of HEA and properties of low-dimensional nanostructures, we highlight the advantages of low-dimensional HEAs. Subsequently, we also present many low-dimensional HEA catalysts for electrocatalytic reactions, aiming to gain a better understanding on the structure-activity relationship. Finally, a series of upcoming challenges and issues are also thoroughly proposed as well as their future directions.
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Affiliation(s)
- Lei Tao
- Jiangsu Province Engineering Research Center of Special Functional Textile Materials, Changzhou Vocational Institute of Textile and Garment, Changzhou, 213164, China
- Changzhou Sveck Photovoltaic New Material Co., Ltd, Changzhou, Jiangsu, 213200, China
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, Jiangsu, 211189, China
| | - Baoyu Huang
- Changzhou Sveck Photovoltaic New Material Co., Ltd, Changzhou, Jiangsu, 213200, China
| | - Yitao Zhao
- Jiangsu Province Engineering Research Center of Special Functional Textile Materials, Changzhou Vocational Institute of Textile and Garment, Changzhou, 213164, China
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering, Changzhou University, Changzhou, 213164, China
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7
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Clausen CM, Krysiak OA, Banko L, Pedersen JK, Schuhmann W, Ludwig A, Rossmeisl J. A Flexible Theory for Catalysis: Learning Alkaline Oxygen Reduction on Complex Solid Solutions within the Ag-Pd-Pt-Ru Composition Space. Angew Chem Int Ed Engl 2023; 62:e202307187. [PMID: 37534574 DOI: 10.1002/anie.202307187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 07/31/2023] [Accepted: 08/02/2023] [Indexed: 08/04/2023]
Abstract
Compositionally complex materials such as high-entropy alloys and oxides have the potential to be efficient platforms for catalyst discovery because of the vast chemical space spanned by these novel materials. Identifying the composition of the most active catalyst materials, however, requires unraveling the descriptor-activity relationship, as experimentally screening the multitude of possible element ratios quickly becomes a daunting task. In this work, we show that inferred adsorption energy distributions of *OH and *O on complex solid solution surfaces within the space spanned by the system Ag-Pd-Pt-Ru are coupled to the experimentally observed electrocatalytic performance for the oxygen reduction reaction. In total, the catalytic activity of 1582 alloy compositions is predicted with a cross-validated mean absolute error of 0.042 mA/cm2 by applying a theory-derived model with only two adjustable parameters. Trends in the discrepancies between predicted electrochemical performance values of the model and the measured values on thin film surfaces subsequently provide insight into the alloys' surface compositions during reaction conditions. Bridging this gap between computationally modeled and experimentally observed catalytic activities, not only reveals insight into the underlying theory of catalysis but also takes a step closer to realizing exploration and exploitation of high-entropy materials.
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Affiliation(s)
- Christian M Clausen
- Center for High-Entropy Alloy Catalysis (CHEAC), Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100, Copenhagen, Denmark
| | - Olga A Krysiak
- Analytical Chemistry-Center for Electrochemical Sciences (CES), Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Universitätsstrasse 150, 44780, Bochum, Germany
| | - Lars Banko
- Materials Discovery and Interfaces, Institute for Materials, Ruhr University Bochum, Universitätsstrasse 150, 44780, Bochum, Germany
| | - Jack K Pedersen
- Center for High-Entropy Alloy Catalysis (CHEAC), Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100, Copenhagen, Denmark
| | - Wolfgang Schuhmann
- Analytical Chemistry-Center for Electrochemical Sciences (CES), Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Universitätsstrasse 150, 44780, Bochum, Germany
| | - Alfred Ludwig
- Materials Discovery and Interfaces, Institute for Materials, Ruhr University Bochum, Universitätsstrasse 150, 44780, Bochum, Germany
| | - Jan Rossmeisl
- Center for High-Entropy Alloy Catalysis (CHEAC), Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100, Copenhagen, Denmark
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8
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Baek J, Hossain MD, Mukherjee P, Lee J, Winther KT, Leem J, Jiang Y, Chueh WC, Bajdich M, Zheng X. Synergistic effects of mixing and strain in high entropy spinel oxides for oxygen evolution reaction. Nat Commun 2023; 14:5936. [PMID: 37741823 PMCID: PMC10517924 DOI: 10.1038/s41467-023-41359-7] [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: 07/20/2022] [Accepted: 08/28/2023] [Indexed: 09/25/2023] Open
Abstract
Developing stable and efficient electrocatalysts is vital for boosting oxygen evolution reaction (OER) rates in sustainable hydrogen production. High-entropy oxides (HEOs) consist of five or more metal cations, providing opportunities to tune their catalytic properties toward high OER efficiency. This work combines theoretical and experimental studies to scrutinize the OER activity and stability for spinel-type HEOs. Density functional theory confirms that randomly mixed metal sites show thermodynamic stability, with intermediate adsorption energies displaying wider distributions due to mixing-induced equatorial strain in active metal-oxygen bonds. The rapid sol-flame method is employed to synthesize HEO, comprising five 3d-transition metal cations, which exhibits superior OER activity and durability under alkaline conditions, outperforming lower-entropy oxides, even with partial surface oxidations. The study highlights that the enhanced activity of HEO is primarily attributed to the mixing of multiple elements, leading to strain effects near the active site, as well as surface composition and coverage.
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Affiliation(s)
- Jihyun Baek
- Department of Mechanical Engineering, Stanford University, Stanford, CA, 94305, USA
| | - Md Delowar Hossain
- SUNCAT Center for Interface Science and Catalysis, Department of Chemical Engineering, Stanford University, Stanford, CA, 94305, USA
- SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA
| | - Pinaki Mukherjee
- Stanford Nano Shared Facilities, Stanford University, Stanford, CA, 94305, USA
| | - Junghwa Lee
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA
- Stanford Institute for Materials and Energy Science, SLAC National Accelerator Laboratory, Menlo Park, CA, USA
| | - Kirsten T Winther
- SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA
| | - Juyoung Leem
- Department of Mechanical Engineering, Stanford University, Stanford, CA, 94305, USA
| | - Yue Jiang
- Department of Mechanical Engineering, Stanford University, Stanford, CA, 94305, USA
| | - William C Chueh
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA
- Stanford Institute for Materials and Energy Science, SLAC National Accelerator Laboratory, Menlo Park, CA, USA
| | - Michal Bajdich
- SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA.
| | - Xiaolin Zheng
- Department of Mechanical Engineering, Stanford University, Stanford, CA, 94305, USA.
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9
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Wu H, Zhang J, Lu Q, Li Y, Jiang R, Liu Y, Zheng X, Zhao N, Li J, Deng Y, Hu W. High-Entropy Layered Double Hydroxides with Highly Adjustable Components for Enhancing Electrocatalytic Oxygen Evolution. ACS APPLIED MATERIALS & INTERFACES 2023; 15:38423-38432. [PMID: 37527430 DOI: 10.1021/acsami.3c05781] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/03/2023]
Abstract
The main obstacle to the development of large-scale electrochemical hydrogen production based on water splitting is the slow four-electron kinetics of OER (oxygen evolution reaction). The most efficient method is to create sophisticated and effective OER catalysts. Here, we proposed the controlled synthesis of high-entropy layered double hydroxides (HELDH) for wide component regulation and the component design of high OER activity to make up for the restricted component regulation in conventional catalysts. Through the use of coprecipitation and hydrothermal synthesis, the representative sample (MgCoNi)3(FeAl)-LDH is created and systematically characterized. Significantly, this technique of preparation may generically synthesize a variety of HELDH with various component combinations, demonstrating the remarkable adaptability of the HELDH components. Subsequently, (FeCoNi)3(FeCr)-LDH with high OER activity is designed and synthesized. (FeCoNi)3(FeCr)-LDH shows excellent OER activity (overpotential is only 230 mV at 10 mA cm-2). A new platform for the creation of high-performance catalysts and high-entropy materials was established by the synthesis and design of HELDH.
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Affiliation(s)
- Han Wu
- School of Materials Science and Engineering, Tianjin Key Laboratory of Composite and Functional Materials, Key Laboratory of Advanced Ceramics and Machining Technology, (Ministry of Education), Tianjin University, Tianjin 300350, P. R. China
| | - Jinfeng Zhang
- School of Materials Science and Engineering, Tianjin Key Laboratory of Composite and Functional Materials, Key Laboratory of Advanced Ceramics and Machining Technology, (Ministry of Education), Tianjin University, Tianjin 300350, P. R. China
| | - Qi Lu
- School of Materials Science and Engineering, Tianjin Key Laboratory of Composite and Functional Materials, Key Laboratory of Advanced Ceramics and Machining Technology, (Ministry of Education), Tianjin University, Tianjin 300350, P. R. China
| | - Yajing Li
- School of Materials Science and Engineering, Tianjin Key Laboratory of Composite and Functional Materials, Key Laboratory of Advanced Ceramics and Machining Technology, (Ministry of Education), Tianjin University, Tianjin 300350, P. R. China
| | - Rui Jiang
- School of Materials Science and Engineering, Tianjin Key Laboratory of Composite and Functional Materials, Key Laboratory of Advanced Ceramics and Machining Technology, (Ministry of Education), Tianjin University, Tianjin 300350, P. R. China
| | - Yuan Liu
- School of Materials Science and Engineering, Tianjin Key Laboratory of Composite and Functional Materials, Key Laboratory of Advanced Ceramics and Machining Technology, (Ministry of Education), Tianjin University, Tianjin 300350, P. R. China
| | - Xuerong Zheng
- School of Materials Science and Engineering, Tianjin Key Laboratory of Composite and Functional Materials, Key Laboratory of Advanced Ceramics and Machining Technology, (Ministry of Education), Tianjin University, Tianjin 300350, P. R. China
- State Key Laboratory of Marine Resource Utilization in South China Sea, School of Materials Science and Engineering, Hainan University, Haikou 570228, P. R. China
| | - Naiqin Zhao
- School of Materials Science and Engineering, Tianjin Key Laboratory of Composite and Functional Materials, Key Laboratory of Advanced Ceramics and Machining Technology, (Ministry of Education), Tianjin University, Tianjin 300350, P. R. China
| | - Jiajun Li
- School of Materials Science and Engineering, Tianjin Key Laboratory of Composite and Functional Materials, Key Laboratory of Advanced Ceramics and Machining Technology, (Ministry of Education), Tianjin University, Tianjin 300350, P. R. China
| | - Yida Deng
- School of Materials Science and Engineering, Tianjin Key Laboratory of Composite and Functional Materials, Key Laboratory of Advanced Ceramics and Machining Technology, (Ministry of Education), Tianjin University, Tianjin 300350, P. R. China
- State Key Laboratory of Marine Resource Utilization in South China Sea, School of Materials Science and Engineering, Hainan University, Haikou 570228, P. R. China
| | - Wenbin Hu
- School of Materials Science and Engineering, Tianjin Key Laboratory of Composite and Functional Materials, Key Laboratory of Advanced Ceramics and Machining Technology, (Ministry of Education), Tianjin University, Tianjin 300350, P. R. China
- Joint School of National University of Singapore and Tianjin University International Campus of Tianjin University, Binhai New City, Fuzhou 350207, P. R. China
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10
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Bornet A, Pittkowski R, Nielsen TM, Berner E, Maletzko A, Schröder J, Quinson J, Melke J, Jensen KMØ, Arenz M. Influence of Temperature on the Performance of Carbon- and ATO-supported Oxygen Evolution Reaction Catalysts in a Gas Diffusion Electrode Setup. ACS Catal 2023; 13:7568-7577. [PMID: 37288094 PMCID: PMC10242686 DOI: 10.1021/acscatal.3c01193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 05/09/2023] [Indexed: 06/09/2023]
Abstract
State-of-the-art industrial electrocatalysts for the oxygen evolution reaction (OER) under acidic conditions are Ir-based. Considering the scarce supply of Ir, it is imperative to use the precious metal as efficiently as possible. In this work, we immobilized ultrasmall Ir and Ir0.4Ru0.6 nanoparticles on two different supports to maximize their dispersion. One high-surface-area carbon support serves as a reference but has limited technological relevance due to its lack of stability. The other support, antimony-doped tin oxide (ATO), has been proposed in the literature as a possible better support for OER catalysts. Temperature-dependent measurements performed in a recently developed gas diffusion electrode (GDE) setup reveal that surprisingly the catalysts immobilized on commercial ATO performed worse than their carbon-immobilized counterparts. The measurements suggest that the ATO support deteriorates particularly fast at elevated temperatures.
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Affiliation(s)
- Aline Bornet
- Department
of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland
| | - Rebecca Pittkowski
- Department
of Chemistry, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen, Denmark
| | - Tobias M. Nielsen
- Department
of Chemistry, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen, Denmark
| | - Etienne Berner
- Department
of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland
| | - Annabelle Maletzko
- Department
for Applied Electrochemistry, Fraunhofer-Institute
for Chemical Technology ICT, Joseph-von-Fraunhofer Strasse 7, 76327 Pfinztal, Germany
| | - Johanna Schröder
- Department
of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland
| | - Jonathan Quinson
- Department
of Chemistry, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen, Denmark
- Biochemical
and Chemical Engineering Department, Aarhus
University, Åbogade 40, 8200 Aarhus, Denmark
| | - Julia Melke
- Department
for Applied Electrochemistry, Fraunhofer-Institute
for Chemical Technology ICT, Joseph-von-Fraunhofer Strasse 7, 76327 Pfinztal, Germany
| | - Kirsten M. Ø. Jensen
- Department
of Chemistry, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen, Denmark
| | - Matthias Arenz
- Department
of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland
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11
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Katzbaer RR, Vincent WM, Mao Z, Schaak RE. Synthesis and Magnetic, Optical, and Electrocatalytic Properties of High-Entropy Mixed-Metal Tungsten and Molybdenum Oxides. Inorg Chem 2023; 62:7843-7852. [PMID: 37163751 DOI: 10.1021/acs.inorgchem.3c00541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
High-entropy oxides (HEOs) are of interest for their unique physical and chemical properties. Significant lattice distortions, strain, and tolerance for high-vacancy concentrations set HEOs apart from single-metal or mixed-metal oxides. Herein, we synthesized and characterized the structures and compositions, along with the optical, magnetic, and electrocatalytic properties, of two families of high-entropy mixed-metal tungsten and molybdenum oxides, AWO4 and B2Mo3O8, where A and B are 3d transition metals. The HEOs A6WO4 (A = Mn, Fe, Co, Ni, Cu, and Zn) and B25Mo3O8 (B = Mn, Fe, Co, Ni, and Zn), as well as all accessible single-metal AWO4 and B2Mo3O8 parent compounds, were synthesized using high-temperature solid-state methods. X-ray photoelectron spectroscopy analysis of the surfaces revealed that the HEOs largely had the metal oxidation states expected from the bulk chemical formulas, but in some cases they were different than in the parent compounds. A6WO4 exhibited antiferromagnetic (AFM) ordering with a Néel temperature of 30 K, which is less than the average of its AFM parent compounds, and had a narrow band gap of 0.24 eV, which is much lower than all of its parent compounds. B25Mo3O8 was paramagnetic, despite the existence of AFM and ferromagnetic ordering in several of its parent compounds and had no observable band gap, which is analogous to its parent compounds. Both A6WO4 and B25Mo3O8 exhibited superior catalytic activity relative to the parent compounds for the oxygen evolution reaction, the oxidation half reaction of overall water splitting, under alkaline conditions, based on the overpotential required to reach the benchmark surface area normalized current density. Consistent with literature predictions of OER durability for ternary tungsten and molybdenum oxides, A6WO4 and B25Mo3O8 also exhibited stable performance without significant dissolution during 10 h stability experiments at a constant current.
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Affiliation(s)
- Rowan R Katzbaer
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - William M Vincent
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Zhiqiang Mao
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
- Department of Physics, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Raymond E Schaak
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
- Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
- Materials Research Institute, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
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12
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Cechanaviciute IA, Antony RP, Krysiak OA, Quast T, Dieckhöfer S, Saddeler S, Telaar P, Chen YT, Muhler M, Schuhmann W. Scalable Synthesis of Multi-Metal Electrocatalyst Powders and Electrodes and their Application for Oxygen Evolution and Water Splitting. Angew Chem Int Ed Engl 2023; 62:e202218493. [PMID: 36640442 DOI: 10.1002/anie.202218493] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 01/12/2023] [Accepted: 01/13/2023] [Indexed: 01/15/2023]
Abstract
Multi-metal electrocatalysts provide nearly unlimited catalytic possibilities arising from synergistic element interactions. We propose a polymer/metal precursor spraying technique that can easily be adapted to produce a large variety of compositional different multi-metal catalyst materials. To demonstrate this, 11 catalysts were synthesized, characterized, and investigated for the oxygen evolution reaction (OER). Further investigation of the most active OER catalyst, namely CoNiFeMoCr, revealed a polycrystalline structure, and operando Raman measurements indicate that multiple active sites are participating in the reaction. Moreover, Ni foam-supported CoNiFeMoCr electrodes were developed and applied for water splitting in flow-through electrolysis cells with electrolyte gaps and in zero-gap membrane electrode assembly (MEA) configurations. The proposed alkaline MEA-type electrolyzers reached up to 3 A cm-2 , and 24 h measurements demonstrated no loss of current density of 1 A cm-2 .
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Affiliation(s)
- Ieva A Cechanaviciute
- Analytical Chemistry-Center for Electrochemical Sciences (CES), Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Universitätsstr. 150, 44780, Bochum, Germany
| | - Rajini P Antony
- Analytical Chemistry-Center for Electrochemical Sciences (CES), Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Universitätsstr. 150, 44780, Bochum, Germany
| | - Olga A Krysiak
- Analytical Chemistry-Center for Electrochemical Sciences (CES), Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Universitätsstr. 150, 44780, Bochum, Germany
| | - Thomas Quast
- Analytical Chemistry-Center for Electrochemical Sciences (CES), Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Universitätsstr. 150, 44780, Bochum, Germany
| | - Stefan Dieckhöfer
- Analytical Chemistry-Center for Electrochemical Sciences (CES), Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Universitätsstr. 150, 44780, Bochum, Germany
| | - Sascha Saddeler
- Analytical Chemistry-Center for Electrochemical Sciences (CES), Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Universitätsstr. 150, 44780, Bochum, Germany
| | - Pascal Telaar
- Laboratory of Industrial Chemistry, Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Universitätsstr. 150, 44801, Bochum, Germany
| | - Yen-Ting Chen
- The Center for Solvation Science ZEMOS, Ruhr University Bochum, Universitätsstr. 150, 44801, Bochum, Germany
| | - Martin Muhler
- Laboratory of Industrial Chemistry, Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Universitätsstr. 150, 44801, Bochum, Germany
| | - Wolfgang Schuhmann
- Analytical Chemistry-Center for Electrochemical Sciences (CES), Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Universitätsstr. 150, 44780, Bochum, Germany
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13
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Chen Z, Yang H, Mebs S, Dau H, Driess M, Wang Z, Kang Z, Menezes PW. Reviving Oxygen Evolution Electrocatalysis of Bulk La-Ni Intermetallics via Gaseous Hydrogen Engineering. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2208337. [PMID: 36528302 DOI: 10.1002/adma.202208337] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Revised: 12/05/2022] [Indexed: 06/17/2023]
Abstract
A hydrogen processing strategy is developed to enable bulk LaNi5 to attain high activity and long-term stability toward the electrocatalytic oxygen evolution reaction (OER). By a combination of in situ Raman and quasi in situ X-ray absorption (XAS) spectra, secondary-electron-excited scanning transmission electron microscopy (STEM) patterns as well as the Rietveld method and density functional theory (DFT) calculations, it is discovered that hydrogen-induced lattice distortion, grain refinement, and particle cracks dictate the effective reconstruction of the LaNi5 surface into a porous hetero-nanoarchitecture composed of uniformly confined active γ-NiOOH nanocrystals by La(OH)3 layer in the alkaline OER process. This significantly optimizes the charge transfer, structural integrity, active-site exposure, and adsorption energy toward the reaction intermediates. Benefiting from these merits, the overpotential (322 mV) at 100 mA cm-2 for the hydrogen-processed OER catalyst deposited on nickel foam is reduced by 104 mV as compared to the original phase. Notably, it exhibits remarkable stability for 10 days at an industrial-grade current density of more than 560 mA cm-2 in alkaline media.
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Affiliation(s)
- Ziliang Chen
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, 215123, P. R. China
| | - Hongyuan Yang
- Department of Chemistry, Metalorganics and Inorganic Materials, Technische Universität Berlin, Straße des 17 Juni 135, Sekr. C2, 10623, Berlin, Germany
| | - Stefan Mebs
- S Department of Physics, Free University of Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Holger Dau
- S Department of Physics, Free University of Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Matthias Driess
- Department of Chemistry, Metalorganics and Inorganic Materials, Technische Universität Berlin, Straße des 17 Juni 135, Sekr. C2, 10623, Berlin, Germany
| | - Zhaowu Wang
- School of Physics and Engineering, Longmen laboratory, Henan University of Science and Technology, Luoyang, 471023, P. R. China
| | - Zhenhui Kang
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, 215123, P. R. China
| | - Prashanth W Menezes
- Department of Chemistry, Metalorganics and Inorganic Materials, Technische Universität Berlin, Straße des 17 Juni 135, Sekr. C2, 10623, Berlin, Germany
- Materials Chemistry Group for Thin Film Catalysis-CatLab, Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Str. 15, 12489, Berlin, Germany
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14
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Xu H, Jin Z, Zhang Y, Lin X, Xie G, Liu X, Qiu HJ. Designing strategies and enhancing mechanism for multicomponent high-entropy catalysts. Chem Sci 2023; 14:771-790. [PMID: 36755717 PMCID: PMC9890551 DOI: 10.1039/d2sc06403k] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 12/27/2022] [Indexed: 01/04/2023] Open
Abstract
High-entropy materials (HEMs) are new-fashioned functional materials in the field of catalysis owing to their large designing space, tunable electronic structure, interesting "cocktail effect", and entropy stabilization effect. Many effective strategies have been developed to design advanced catalysts for various important reactions. Herein, we firstly review effective strategies developed so far for optimizing HEM-based catalysts and the underlying mechanism revealed by both theoretical simulations and experimental aspects. In light of this overview, we subsequently present some perspectives about the development of HEM-based catalysts and provide some serviceable guidelines and/or inspiration for further studying multicomponent catalysts.
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Affiliation(s)
- Haitao Xu
- School of Materials Science and Engineering, Dongguan University of TechnologyDongguan 523808China
| | - Zeyu Jin
- School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen) Shenzhen 518055 China
| | - Yinghe Zhang
- School of Science, Harbin Institute of Technology (Shenzhen)Shenzhen 518055China
| | - Xi Lin
- School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen) Shenzhen 518055 China
| | - Guoqiang Xie
- School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen) Shenzhen 518055 China
| | - Xingjun Liu
- School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen) Shenzhen 518055 China
| | - Hua-Jun Qiu
- School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen) Shenzhen 518055 China
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15
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Svane KL, Rossmeisl J. Theoretical Optimization of Compositions of High-Entropy Oxides for the Oxygen Evolution Reaction. Angew Chem Int Ed Engl 2022; 61:e202201146. [PMID: 35225378 PMCID: PMC9314724 DOI: 10.1002/anie.202201146] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Indexed: 11/30/2022]
Abstract
High‐entropy oxides are oxides consisting of five or more metals incorporated in a single lattice, and the large composition space suggests that properties of interest can be readily optimised. For applications within catalysis, the different local atomic environments result in a distribution of binding energies for the catalytic intermediates. Using the oxygen evolution reaction on the rutile (110) surface as example, here we outline a strategy for the theoretical optimization of the composition. Density functional theory calculations performed for a limited number of sites are used to fit a model that predicts the reaction energies for all possible local atomic environments. Two reaction pathways are considered; the conventional pathway on the coordinatively unsaturated sites and an alternative pathway involving transfer of protons to a bridging oxygen. An explicit model of the surface is constructed to describe the interdependency of the two pathways and identify the composition that maximizes catalytic activity.
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Affiliation(s)
- Katrine L Svane
- Center for High Entropy Alloy Catalysis, Department of Chemistry, Copenhagen University, Universitetsparken 5, 2100, København K, Denmark
| | - Jan Rossmeisl
- Center for High Entropy Alloy Catalysis, Department of Chemistry, Copenhagen University, Universitetsparken 5, 2100, København K, Denmark
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