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Ma A, Lee Y, Seo D, Kim J, Park S, Son J, Kwon W, Nam DH, Lee H, Kim YI, Um HD, Shin H, Nam KM. Unlocking the Potential of Bi 2S 3-Derived Bi Nanoplates: Enhanced Catalytic Activity and Selectivity in Electrochemical and Photoelectrochemical CO 2 Reduction to Formate. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2400874. [PMID: 38760899 DOI: 10.1002/advs.202400874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Revised: 04/24/2024] [Indexed: 05/20/2024]
Abstract
Various electrocatalysts are extensively examined for their ability to selectively produce desired products by electrochemical CO2 reduction reaction (CO2RR). However, an efficient CO2RR electrocatalyst doesn't ensure an effective co-catalyst on the semiconductor surface for photoelectrochemical CO2RR. Herein, Bi2S3 nanorods are synthesized and electrochemically reduced to Bi nanoplates that adhere to the substrates for application in the electrochemical and photoelectrochemical CO2RR. Compared with commercial-Bi, the Bi2S3-derived Bi (S-Bi) nanoplates on carbon paper exhibit superior electrocatalytic activity and selectivity for formate (HCOO-) in the electrochemical CO2RR, achieving a Faradaic efficiency exceeding 93%, with minimal H2 production over a wide potential range. This highly selective S-Bi catalyst is being employed on the Si photocathode to investigate the behavior of electrocatalysts during photoelectrochemical CO2RR. The strong adhesion of the S-Bi nanoplates to the Si nanowire substrate and their unique catalytic properties afford exceptional activity and selectivity for HCOO- under simulated solar irradiation. The selectivity observed in electrochemical CO2RR using the S-Bi catalyst correlates with that seen in the photoelectrochemical CO2RR system. Combined pulsed potential methods and theoretical analyses reveal stabilization of the OCHO* intermediate on the S-Bi catalyst under specific conditions, which is critical for developing efficient catalysts for CO2-to-HCOO- conversion.
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Affiliation(s)
- Ahyeon Ma
- Department of Chemistry and Institute for Future Earth, Pusan National University, Geumjeong-gu, Busan, 46241, Republic of Korea
| | - Yongsoon Lee
- Graduate School of Energy Science and Technology (GEST), Chungnam National University, Daejeon, 34134, Republic of Korea
| | - Dongho Seo
- Department of Chemistry and Institute for Future Earth, Pusan National University, Geumjeong-gu, Busan, 46241, Republic of Korea
| | - Jiyoon Kim
- Department of Chemistry and Institute for Future Earth, Pusan National University, Geumjeong-gu, Busan, 46241, Republic of Korea
| | - Soohyeok Park
- Department of Chemical Engineering, Kangwon National University, Chuncheon, Gangwon-do, 24341, Republic of Korea
| | - Jihoon Son
- Graduate School of Energy Science and Technology (GEST), Chungnam National University, Daejeon, 34134, Republic of Korea
| | - Woosuck Kwon
- Department of Energy Science and Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, 42988, Republic of Korea
| | - Dae-Hyun Nam
- Department of Energy Science and Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, 42988, Republic of Korea
| | - Hyosung Lee
- Korea Research Institute of Standards and Science (KRISS), 267 Gajeong, Yuseong, Daejeon, 34113, Republic of Korea
- Department of Measurement Engineering, University of Science and Technology, 217, Gajeong, Yuseong, Daejeon, 34113, Republic of Korea
| | - Yong-Il Kim
- Korea Research Institute of Standards and Science (KRISS), 267 Gajeong, Yuseong, Daejeon, 34113, Republic of Korea
- Department of Measurement Engineering, University of Science and Technology, 217, Gajeong, Yuseong, Daejeon, 34113, Republic of Korea
| | - Han-Don Um
- Department of Chemical Engineering, Kangwon National University, Chuncheon, Gangwon-do, 24341, Republic of Korea
| | - Hyeyoung Shin
- Graduate School of Energy Science and Technology (GEST), Chungnam National University, Daejeon, 34134, Republic of Korea
| | - Ki Min Nam
- Department of Chemistry and Institute for Future Earth, Pusan National University, Geumjeong-gu, Busan, 46241, Republic of Korea
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Cheng Y, Yang R, Xia L, Zhao X, Tan Y, Sun M, Li S, Li F, Huang M. Graphene quantum dot-mediated anchoring of highly dispersed bismuth nanoparticles on porous graphene for enhanced electrocatalytic CO 2 reduction to formate. NANOSCALE 2024; 16:2373-2381. [PMID: 38206313 DOI: 10.1039/d3nr05853k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2024]
Abstract
The electrocatalytic reduction of CO2 to produce formic acid is gaining prominence as a critical technology in the pursuit of carbon neutrality. Nonetheless, it remains challenging to attain both substantial formic acid production and high stability across a wide voltage range, particularly when utilizing bismuth-based catalysts. Herein, we present a novel graphene quantum dot-mediated synthetic strategy to achieve the uniform deposition of highly dispersed bismuth nanoparticles on porous graphene. This innovative design achieves an elevated faradaic efficiency for formate of 87.0% at -1.11 V vs. RHE with high current density and long-term stability. When employing a flow cell, a maximum FEformate of 80.0% was attained with a total current density of 156.5 mA cm-2. The exceptional catalytic properties can be primarily attributed to the use of porous graphene as the support and the auxiliary contribution of graphene quantum dots, which enhance the dispersion of bismuth nanoparticles. This improved dispersion, in turn, has a significantly positive impact on CO2 activation and the generation of *HCOO intermediates to facilitate the formation of formate. This work presents a straightforward technique to create uniform metal nanoparticles on carbon materials for advancing various electrolytic applications.
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Affiliation(s)
- Yi Cheng
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, China.
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313001, China
| | - Ruizhe Yang
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, China.
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313001, China
| | - Lu Xia
- ICFO-Institut de Ciències Fotòniques, The Barcelona Institute of Science and Technology, Barcelona 08860, Spain
| | - Xiaoli Zhao
- School of Materials Science and Engineering, Xihua University, Chengdu, 610039, China.
| | - Yuwei Tan
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, China.
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313001, China
| | - Ming Sun
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, China.
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313001, China
| | - Suming Li
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, China.
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313001, China
| | - Fei Li
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, China.
| | - Ming Huang
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, China.
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313001, China
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