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Xu Y, Liu X, Jiang M, Chi B, Lu Y, Guo J, Wang Z, Cui S. Achieving high selectivity and activity of CO 2 electroreduction to formate by in-situ synthesis of single atom Pb doped Cu catalysts. J Colloid Interface Sci 2024; 665:365-375. [PMID: 38537585 DOI: 10.1016/j.jcis.2024.03.137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Revised: 03/18/2024] [Accepted: 03/20/2024] [Indexed: 04/17/2024]
Abstract
Exploring highly selective and stable electrocatalysts is of great significance for the electrochemical conversion of CO2 into fuel. Herein, a three-dimensional (3D) nanostructure catalyst was developed by doping Pb single-atom (PbSA) in-situ on carbon paper (PbSA100-Cu/CP) through a low-energy and economical method. The designed catalyst exhibited abundant active sites and was beneficial to CO2 adsorption, activation, and subsequent conversion to fuel. Interestingly, PbSA100-Cu/CP showed a prominent Faraday efficiency (FE) of 97 % at -0.9 V versus reversible hydrogen electrode (vs. RHE) and a high partial current density of 27.9 mA·cm-2 for formate. Also, the catalyst remained significantly stable for 60 h during the durability test. The reaction mechanism was investigated by density functional theory (DFT), demonstrating that the doping PbSA induced the electrons redistribution, promoted the formate generation, reduced the rate-determining step (RDS) energy barrier, and inhibited the hydrogen evolution reaction. The study aims to provide a new strategy for developing of single-atom catalysts with high selectivity and stability, which will help reduce environmental pressure and alleviate energy problems.
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Affiliation(s)
- Yurui Xu
- College of Materials Science & Engineering, Beijing University of Technology, Beijing 100124, China; Institute of Disaster Prevention, Sanhe 065201, China
| | - Xiao Liu
- College of Materials Science & Engineering, Beijing University of Technology, Beijing 100124, China.
| | - Minghui Jiang
- College of Materials Science & Engineering, Beijing University of Technology, Beijing 100124, China
| | - Bichuan Chi
- China Institute of Building Standard Design and Research, Beijing 100048, China
| | - Yue Lu
- Beijing Key Laboratory of Microstructure and Properties of Solids, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China
| | - Jin Guo
- State Key Laboratory of Mechanical Behavior and System Safety of Traffic Engineering Structures, Shijiazhuang Tiedao University, Shijiazhuang 050043, China
| | - Ziming Wang
- College of Materials Science & Engineering, Beijing University of Technology, Beijing 100124, China
| | - Suping Cui
- College of Materials Science & Engineering, Beijing University of Technology, Beijing 100124, China
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Zhang C, Hao X, Wang J, Ding X, Zhong Y, Jiang Y, Wu MC, Long R, Gong W, Liang C, Cai W, Low J, Xiong Y. Concentrated Formic Acid from CO 2 Electrolysis for Directly Driving Fuel Cell. Angew Chem Int Ed Engl 2024; 63:e202317628. [PMID: 38305482 DOI: 10.1002/anie.202317628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Revised: 02/01/2024] [Accepted: 02/02/2024] [Indexed: 02/03/2024]
Abstract
The production of formic acid via electrochemical CO2 reduction may serve as a key link for the carbon cycle in the formic acid economy, yet its practical feasibility is largely limited by the quantity and concentration of the product. Here we demonstrate continuous electrochemical CO2 reduction for formic acid production at 2 M at an industrial-level current densities (i.e., 200 mA cm-2 ) for 300 h on membrane electrode assembly using scalable lattice-distorted bismuth catalysts. The optimized catalysts also enable a Faradaic efficiency for formate of 94.2 % and a highest partial formate current density of 1.16 A cm-2 , reaching a production rate of 21.7 mmol cm-2 h-1 . To assess the practicality of this system, we perform a comprehensive techno-economic analysis and life cycle assessment, showing that our approach can potentially substitute conventional methyl formate hydrolysis for industrial formic acid production. Furthermore, the resultant formic acid serves as direct fuel for air-breathing formic acid fuel cells, boasting a power density of 55 mW cm-2 and an exceptional thermal efficiency of 20.1 %.
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Affiliation(s)
- Chao Zhang
- Hefei National Research Center for Physical Sciences at the Microscale, School of Chemistry and Materials Science, and National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230026, China
- Suzhou Institute for Advanced Research, University of Science and Technology of China, Suzhou, Jiangsu, 215123, China
| | - Xiaobin Hao
- Hefei National Research Center for Physical Sciences at the Microscale, School of Chemistry and Materials Science, and National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Jiatang Wang
- Sustainable Energy Laboratory, Faculty of Materials Science and Chemistry, China University of Geosciences Wuhan, 388 Lumo Road, Wuhan, Hubei, 430074, China
| | - Xiayu Ding
- Hefei National Research Center for Physical Sciences at the Microscale, School of Chemistry and Materials Science, and National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Yuan Zhong
- Hefei National Research Center for Physical Sciences at the Microscale, School of Chemistry and Materials Science, and National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Yawen Jiang
- Hefei National Research Center for Physical Sciences at the Microscale, School of Chemistry and Materials Science, and National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Ming-Chung Wu
- Department of Chemical and Materials Engineering, Chang Gung University, Taoyuan, 33302, Taiwan
| | - Ran Long
- Hefei National Research Center for Physical Sciences at the Microscale, School of Chemistry and Materials Science, and National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Wanbing Gong
- Hefei National Research Center for Physical Sciences at the Microscale, School of Chemistry and Materials Science, and National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Changhao Liang
- Key Laboratory of Materials Physics, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei, Anhui, 230031, China
| | - Weiwei Cai
- Sustainable Energy Laboratory, Faculty of Materials Science and Chemistry, China University of Geosciences Wuhan, 388 Lumo Road, Wuhan, Hubei, 430074, China
| | - Jingxiang Low
- Hefei National Research Center for Physical Sciences at the Microscale, School of Chemistry and Materials Science, and National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Yujie Xiong
- Hefei National Research Center for Physical Sciences at the Microscale, School of Chemistry and Materials Science, and National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230026, China
- Suzhou Institute for Advanced Research, University of Science and Technology of China, Suzhou, Jiangsu, 215123, China
- Anhui Engineering Research Center of Carbon Neutrality, The Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecular-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui, 241002, China
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