Anionic Metal-Organic Framework Derived Cu Catalyst for Selective CO 2 Electroreduction to Hydrocarbons.

Autor: Wen CF; Key Laboratory for Ultrafine Materials of Ministry of Education, Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Materials Science and Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China., Yang S; Key Laboratory for Ultrafine Materials of Ministry of Education, Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Materials Science and Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China., He JJ; National Enterprise Technology Center, Inner Mongolia Erdos Electric Power and Metallurgy Group Company Limited, Ordos, Inner Mongolia, 016064, China., Niu Q; National Enterprise Technology Center, Inner Mongolia Erdos Electric Power and Metallurgy Group Company Limited, Ordos, Inner Mongolia, 016064, China., Liu PF; Key Laboratory for Ultrafine Materials of Ministry of Education, Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Materials Science and Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China., Yang HG; Key Laboratory for Ultrafine Materials of Ministry of Education, Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Materials Science and Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China.
Jazyk: angličtina
Zdroj: Small (Weinheim an der Bergstrasse, Germany) [Small] 2024 Aug 02, pp. e2405051. Date of Electronic Publication: 2024 Aug 02.
DOI: 10.1002/smll.202405051
Abstrakt: Metal-organic frameworks (MOFs)-related Cu materials are promising candidates for promoting electrochemical CO 2 reduction to produce valuable chemical feedstocks. However, many MOF materials inevitable undergo reconstruction under reduction conditions; therefore, exploiting the restructuring of MOF materials is of importance for the rational design of high-performance catalyst targeting multi-carbon products (C 2 ). Herein, a facile solvent process is choosed to fabricate HKUST-1 with an anionic framework (a-HKUST-1) and utilize it as a pre-catalyst for alkaline CO 2 RR. The a-HKUST-1 catalyst can be electrochemically reduced into Cu with significant structural reconstruction under operating reaction conditions. The anionic HKUST-1 derived Cu catalyst (aHD-Cu) delivers a FE C2H4 of 56% and FE C2 of ≈80% at -150 mA cm -2 in alkaline electrolyte. The resulting aHD-Cu catalyst has a high electrochemically active surface area and low coordinated sites. In situ Raman spectroscopy indicates that the aHD-Cu surface displays higher coverage of *CO intermediates, which favors the production of hydrocarbons.
(© 2024 Wiley‐VCH GmbH.)
Databáze: MEDLINE
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