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Dong WJ, Zhou P, Xiao Y, Navid IA, Lee JL, Mi Z. Silver Halide Catalysts on GaN Nanowires/Si Heterojunction Photocathodes for CO2 Reduction to Syngas at High Current Density. ACS Catal 2022. [DOI: 10.1021/acscatal.1c04904] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Wan Jae Dong
- Department of Electrical Engineering and Computer Science, University of Michigan, 1301 Beal Avenue, Ann Arbor, Michigan 48109, United States
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - Peng Zhou
- Department of Electrical Engineering and Computer Science, University of Michigan, 1301 Beal Avenue, Ann Arbor, Michigan 48109, United States
| | - Yixin Xiao
- Department of Electrical Engineering and Computer Science, University of Michigan, 1301 Beal Avenue, Ann Arbor, Michigan 48109, United States
| | - Ishtiaque Ahmed Navid
- Department of Electrical Engineering and Computer Science, University of Michigan, 1301 Beal Avenue, Ann Arbor, Michigan 48109, United States
| | - Jong-Lam Lee
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - Zetian Mi
- Department of Electrical Engineering and Computer Science, University of Michigan, 1301 Beal Avenue, Ann Arbor, Michigan 48109, United States
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Wu H, Li J, Qi K, Zhang Y, Petit E, Wang W, Flaud V, Onofrio N, Rebiere B, Huang L, Salameh C, Lajaunie L, Miele P, Voiry D. Improved electrochemical conversion of CO 2 to multicarbon products by using molecular doping. Nat Commun 2021; 12:7210. [PMID: 34893586 PMCID: PMC8664807 DOI: 10.1038/s41467-021-27456-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 11/12/2021] [Indexed: 11/29/2022] Open
Abstract
The conversion of CO2 into desirable multicarbon products via the electrochemical reduction reaction holds promise to achieve a circular carbon economy. Here, we report a strategy in which we modify the surface of bimetallic silver-copper catalyst with aromatic heterocycles such as thiadiazole and triazole derivatives to increase the conversion of CO2 into hydrocarbon molecules. By combining operando Raman and X-ray absorption spectroscopy with electrocatalytic measurements and analysis of the reaction products, we identified that the electron withdrawing nature of functional groups orients the reaction pathway towards the production of C2+ species (ethanol and ethylene) and enhances the reaction rate on the surface of the catalyst by adjusting the electronic state of surface copper atoms. As a result, we achieve a high Faradaic efficiency for the C2+ formation of ≈80% and full-cell energy efficiency of 20.3% with a specific current density of 261.4 mA cm-2 for C2+ products.
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Affiliation(s)
- Huali Wu
- grid.121334.60000 0001 2097 0141Institut Européen des Membranes, IEM, UMR 5635, Université Montpellier, ENSCM, CNRS, Montpellier, 34000 France
| | - Ji Li
- grid.121334.60000 0001 2097 0141Institut Européen des Membranes, IEM, UMR 5635, Université Montpellier, ENSCM, CNRS, Montpellier, 34000 France ,grid.454711.20000 0001 1942 5509College of Bioresources and Materials Engineering, Shaanxi University of Science & Technology, 710021 Xi’an, People’s Republic of China
| | - Kun Qi
- grid.121334.60000 0001 2097 0141Institut Européen des Membranes, IEM, UMR 5635, Université Montpellier, ENSCM, CNRS, Montpellier, 34000 France
| | - Yang Zhang
- grid.121334.60000 0001 2097 0141Institut Européen des Membranes, IEM, UMR 5635, Université Montpellier, ENSCM, CNRS, Montpellier, 34000 France
| | - Eddy Petit
- grid.121334.60000 0001 2097 0141Institut Européen des Membranes, IEM, UMR 5635, Université Montpellier, ENSCM, CNRS, Montpellier, 34000 France
| | - Wensen Wang
- grid.121334.60000 0001 2097 0141Institut Européen des Membranes, IEM, UMR 5635, Université Montpellier, ENSCM, CNRS, Montpellier, 34000 France
| | - Valérie Flaud
- grid.462034.70000 0001 2368 8723Institut Charles Gerhardt, ICGM, UMR 5253, University of Montpellier, ENSCM, CNRS, 34095 Montpellier Cedex 5, France
| | - Nicolas Onofrio
- grid.121334.60000 0001 2097 0141Institut Européen des Membranes, IEM, UMR 5635, Université Montpellier, ENSCM, CNRS, Montpellier, 34000 France
| | - Bertrand Rebiere
- grid.462034.70000 0001 2368 8723Institut Charles Gerhardt, ICGM, UMR 5253, University of Montpellier, ENSCM, CNRS, 34095 Montpellier Cedex 5, France
| | - Lingqi Huang
- grid.10784.3a0000 0004 1937 0482School of Science and Engineering, The Chinese University of Hong Kong, 518172 Shenzhen, Guangdong People’s Republic of China
| | - Chrystelle Salameh
- grid.121334.60000 0001 2097 0141Institut Européen des Membranes, IEM, UMR 5635, Université Montpellier, ENSCM, CNRS, Montpellier, 34000 France
| | - Luc Lajaunie
- grid.7759.c0000000103580096Departamento de Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica, Facultad de Ciencias, Universidad de Cádiz, Campus Río San Pedro S/N, Puerto Real, 11510 Cádiz, Spain ,grid.7759.c0000000103580096Instituto Universitario de Investigación de Microscopía Electrónica y Materiales (IMEYMAT), Facultad de Ciencias, Universidad de Cádiz, Campus Río San Pedro S/N, Puerto Real, 11510 Cádiz, Spain
| | - Philippe Miele
- grid.121334.60000 0001 2097 0141Institut Européen des Membranes, IEM, UMR 5635, Université Montpellier, ENSCM, CNRS, Montpellier, 34000 France ,grid.440891.00000 0001 1931 4817Institut Universitaire de France (IUF), 1 rue Descartes, 75231 Paris Cedex 05, France
| | - Damien Voiry
- Institut Européen des Membranes, IEM, UMR 5635, Université Montpellier, ENSCM, CNRS, Montpellier, 34000, France.
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Dong WJ, Navid IA, Xiao Y, Lim JW, Lee JL, Mi Z. CuS-Decorated GaN Nanowires on Silicon Photocathodes for Converting CO 2 Mixture Gas to HCOOH. J Am Chem Soc 2021; 143:10099-10107. [PMID: 34210119 DOI: 10.1021/jacs.1c02139] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Hybrid materials consisting of semiconductors and cocatalysts have been widely used for photoelectrochemical (PEC) conversion of CO2 gas to value-added chemicals such as formic acid (HCOOH). To date, however, the rational design of catalytic architecture enabling the reduction of real CO2 gas to chemical has remained a grand challenge. Here, we report a unique photocathode consisting of CuS-decorated GaN nanowires (NWs) integrated on planar silicon (Si) for the conversion of H2S-containing CO2 mixture gas to HCOOH. It was discovered that H2S impurity in the modeled industrial CO2 gas could lead to the spontaneous transformation of Cu to CuS NPs, which resulted in significantly increased faradaic efficiency of HCOOH generation. The CuS/GaN/Si photocathode exhibited superior faradaic efficiency of HCOOH = 70.2% and partial current density = 7.07 mA/cm2 at -1.0 VRHE under AM1.5G 1 sun illumination. To our knowledge, this is the first demonstration that impurity mixed in the CO2 gas can enhance, rather than degrade, the performance of the PEC CO2 reduction reaction.
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Affiliation(s)
- Wan Jae Dong
- Department of Electrical Engineering and Computer Science, University of Michigan, 1301 Beal Avenue, Ann Arbor, Michigan 48109, United States.,Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyungbuk 790-784, Korea
| | - Ishtiaque Ahmed Navid
- Department of Electrical Engineering and Computer Science, University of Michigan, 1301 Beal Avenue, Ann Arbor, Michigan 48109, United States
| | - Yixin Xiao
- Department of Electrical Engineering and Computer Science, University of Michigan, 1301 Beal Avenue, Ann Arbor, Michigan 48109, United States
| | - Jin Wook Lim
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyungbuk 790-784, Korea
| | - Jong-Lam Lee
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyungbuk 790-784, Korea
| | - Zetian Mi
- Department of Electrical Engineering and Computer Science, University of Michigan, 1301 Beal Avenue, Ann Arbor, Michigan 48109, United States
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