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Kang Z, Peng Y, Wei Z, Liu Y, Song X, Ji Z, Shen X, Yao N, Du X, Zhu G. A trinary support of Ni/NiO/C to immobilize Ir nanoclusters for alkaline hydrogen oxidation. Dalton Trans 2024; 53:2762-2769. [PMID: 38226665 DOI: 10.1039/d3dt03981a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2024]
Abstract
The hydrogen oxidation reaction is an important process in anion exchange membrane fuel cells with alkaline solutions. The pursuit of efficient catalysts for alkaline hydrogen oxidation has attracted considerable attention. In this study, we present a precursor route for the synthesis of a new Ir-based catalyst (Ir-Ni/NiO/C), in which Ir nanoclusters were immobilized on the generated Ni/NiO/C support derived from a metal-organic framework. The small size of Ir clusters facilitates the exposure of catalytically active sites. The electronic interplay between the Ir nanoclusters and the Ni/NiO/C support optimized the hydrogen binding energy (HBE) and hydroxide binding energy (OHBE) on the surface, which is unattainable on the contrasting Ir-C, Ir-Ni/C, and Ir-NiO/C products. The optimized catalyst shows excellent mass activity for alkaline hydrogen oxidation, which is 3.1 times that of the Pt/C catalyst. This study presents a promising pathway for the development of advanced HOR catalysts.
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Affiliation(s)
- Ziliang Kang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, China.
| | - Yao Peng
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, China.
| | - Zi Wei
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, China.
| | - Yuanjun Liu
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, China.
| | - Xiaoyang Song
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, China.
| | - Zhenyuan Ji
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, China.
| | - Xiaoping Shen
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, China.
| | - Ning Yao
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, China.
| | - Xinhang Du
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, China.
| | - Guoxing Zhu
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, China.
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Shang Z, Feng X, Chen G, Qin R, Han Y. Recent Advances on Single-Atom Catalysts for Photocatalytic CO 2 Reduction. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2304975. [PMID: 37528498 DOI: 10.1002/smll.202304975] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 07/20/2023] [Indexed: 08/03/2023]
Abstract
The present energy crisis and environmental challenges may be efficiently resolved by converting carbon dioxide (CO2 ) into various useful carbon products. The development of more effective catalysts has been the main focus of current research on photocatalytic CO2 reduction. Due to their high atomic efficiency and superior catalytic activity, single-atom catalysts (SACs) have attracted considerable interest in catalytic CO2 conversion. This review discusses the current research developments, obstacles, and potential of SACs for photocatalytic CO2 reduction. And further, discusses the principle of photocatalytic carbon dioxide reduction. This work has compared and analyzed the effects of support materials and active site types in SACs on photocatalytic CO2 reduction performance. This work believes that by sharing these developments, some inspiration for the rational design and development of stable and effective photocatalytic CO2 reduction catalysts based on SACs can be provided.
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Affiliation(s)
- Ziang Shang
- Frontiers Science Center for Flexible Electronics, and Institute of Flexible Electronics (IFE), Northwestern Polytechnical University, Xi'an, 710072, China
| | - Xueting Feng
- Frontiers Science Center for Flexible Electronics, and Institute of Flexible Electronics (IFE), Northwestern Polytechnical University, Xi'an, 710072, China
| | - Guanzhen Chen
- Frontiers Science Center for Flexible Electronics, and Institute of Flexible Electronics (IFE), Northwestern Polytechnical University, Xi'an, 710072, China
| | - Rong Qin
- Frontiers Science Center for Flexible Electronics, and Institute of Flexible Electronics (IFE), Northwestern Polytechnical University, Xi'an, 710072, China
| | - Yunhu Han
- Frontiers Science Center for Flexible Electronics, and Institute of Flexible Electronics (IFE), Northwestern Polytechnical University, Xi'an, 710072, China
- Key Laboratory of Flexible Electronics of Zhejiang Province, Ningbo Institute of Northwestern Polytechnical University, Ningbo, 315103, China
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Huo J, Shen Z, Cao X, Li L, Zhao Y, Liu H, Wang G. Macro/Micro-Environment Regulating Carbon-Supported Single-Atom Catalysts for Hydrogen/Oxygen Conversion Reactions. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2202394. [PMID: 35853722 DOI: 10.1002/smll.202202394] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 05/21/2022] [Indexed: 06/15/2023]
Abstract
Single-atom catalysts (SACs) have attracted tremendous research interest due to their unique atomic structure, maximized atom utilization, and remarkable catalytic performance. Among the SACs, the carbon-supported SACs have been widely investigated due to their easily controlled properties of the carbon substrates, such as the tunable morphologies, ordered porosity, and abundant anchoring sites. The electrochemical performance of carbon-supported SACs is highly related to the morphological structure of carbon substrates (macro-environment) and the local coordination environments of center metals (micro-environment). This review aims to provide a comprehensive summary on the macro/micro-environment regulating carbon-supported SACs for highly efficient hydrogen/oxygen conversion reactions. The authors first summarize the macro-environment engineering strategies of carbon-supported SACs with altered specific surface areas and porous properties of the carbon substrates, facilitating the mass diffusion kinetics and structural stability. Then the micro-environment engineering strategies of carbon-supported SACs are discussed with the regulated atomic structure and electronic structure of metal centers, boosting the catalytic performance. Insights into the correlation between the co-boosted effect from the macro/micro-environments and catalytic activity for hydrogen/oxygen conversion reactions are summarized and discussed. Finally, the challenges and perspectives are addressed in building highly efficient carbon-supported SACs for practical applications.
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Affiliation(s)
- Juanjuan Huo
- Joint International Laboratory on Environmental and Energy Frontier Materials, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, P. R. China
- School of Materials Science and Engineering, Shanghai University, Shanghai, 200444, P. R. China
| | - Ziyan Shen
- Joint International Laboratory on Environmental and Energy Frontier Materials, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, P. R. China
| | - Xianjun Cao
- Joint International Laboratory on Environmental and Energy Frontier Materials, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, P. R. China
| | - Lu Li
- Joint International Laboratory on Environmental and Energy Frontier Materials, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, P. R. China
| | - Yufei Zhao
- Joint International Laboratory on Environmental and Energy Frontier Materials, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, P. R. China
| | - Hao Liu
- Joint International Laboratory on Environmental and Energy Frontier Materials, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, P. R. China
- Key Laboratory of Materials Processing and Mold (Zhengzhou University), Ministry of Education, Zhengzhou, 450002, China
- Centre for Clean Energy Technology, Faculty of Science, University of Technology Sydney, Broadway, Sydney, NSW 2007, Australia
| | - Guoxiu Wang
- Centre for Clean Energy Technology, Faculty of Science, University of Technology Sydney, Broadway, Sydney, NSW 2007, Australia
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