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Effectively increased efficiency for electroreduction of carbon monoxide using supported polycrystalline copper powder electrocatalysts

Li, Jing and Chang, Kuan and Zhang, Haochen and He, Ming and Goddard, William A., III and Chen, Jingguang G. and Cheng, Mu-Jeng and Lu, Qi (2019) Effectively increased efficiency for electroreduction of carbon monoxide using supported polycrystalline copper powder electrocatalysts. ACS Catalysis, 9 (6). pp. 4709-4718. ISSN 2155-5435. doi:10.1021/acscatal.9b00099.

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Many electrocatalysts can efficiently convert CO_2 to CO. However, the further conversion of CO to higher-value products was hindered by the low activity of the CO reduction reaction and the consequent lack of mechanistic insights for designing better catalysts. A flow-type reactor could potentially improve the reaction rate of CO reduction. However, the currently available configurations would pose great challenges in reaction mechanism understanding due to their complex nature and/or lack of precise potential control. Here we report, in a standard electrochemical cell with a three-electrode setup, a supported bulk polycrystalline copper powder electrode reduces CO to hydrocarbons and multicarbon oxygenates with dramatically increased activities of more than 100 mA cm^(–2) and selectivities of more than 80%. The high activity and selectivity that was achieved demonstrates the practical feasibility of electrochemical CO or CO_2 (with a tandem strategy) conversion and enables the experimental exploration of the CO reduction mechanism to further reduced products.

Item Type:Article
Related URLs:
URLURL TypeDescription
Zhang, Haochen0000-0002-2774-5868
Goddard, William A., III0000-0003-0097-5716
Chen, Jingguang G.0000-0002-9592-2635
Cheng, Mu-Jeng0000-0002-8121-0485
Lu, Qi0000-0002-0380-2629
Additional Information:© 2019 American Chemical Society. Received: January 9, 2019; Revised: March 16, 2019; Published: April 18, 2019. This work was supported by the National Basic Research of China (grant number 2017YFA0208200) and the National Natural Science Foundation of China (grant number 21872079, 21606142). M.J.C. acknowledges financial support from the Ministry of Science and Technology of the Republic of China under grant no. MOST 107-2113-M-006-008-MY2.
Funding AgencyGrant Number
National Basic Research of China2017YFA0208200
National Natural Science Foundation of China21872079
National Natural Science Foundation of China21606142
Ministry of Science and Technology (Taipei)107-2113-M-006-008-MY2
Subject Keywords:CO2 reduction; CO reduction; copper; triple-phase-boundary; solar fuel; energy conversion
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Issue or Number:6
Record Number:CaltechAUTHORS:20190418-104651423
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Official Citation:Effectively Increased Efficiency for Electroreduction of Carbon Monoxide Using Supported Polycrystalline Copper Powder Electrocatalysts. Jing Li, Kuan Chang, Haochen Zhang, Ming He, William A. Goddard, III, Jingguang G. Chen, Mu-Jeng Cheng, and Qi Lu. ACS Catalysis 2019 9 (6), 4709-4718. DOI: 10.1021/acscatal.9b00099
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:94785
Deposited By: Tony Diaz
Deposited On:18 Apr 2019 18:19
Last Modified:16 Nov 2021 17:07

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