Cu and Zn promoted Al-fumarate metal organic frameworks for electrocatalytic CO 2 reduction.

Autor: Dieu Thuy UT; Institute of Materials Science, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet, Cau Giay Hanoi Vietnam dieuthuy@ims.vast.vn liemnq@vast.vn., Huan TN; Laboratoire de Chimie des Processus Biologiques, Collège de France, Sorbonne Université 11 Place Marcelin Berthelot 75231 Paris Cedex 05 France ngoc-huan.tran@college-de-france.fr., Zanna S; Chimie ParisTech, PSL Research University, CNRS, Institut de Recherche de Chimie Paris (IRCP) 11 rue Pierre et Marie Curie 75005 Paris France., Wilson K; School of Environment & Science, Centre for Catalysis and Clean Energy, Griffith University Gold Coast Campus QLD 4222 Australia., Lee AF; School of Environment & Science, Centre for Catalysis and Clean Energy, Griffith University Gold Coast Campus QLD 4222 Australia., Le ND; Laboratoire de Chimie des Processus Biologiques, Collège de France, Sorbonne Université 11 Place Marcelin Berthelot 75231 Paris Cedex 05 France ngoc-huan.tran@college-de-france.fr., Mensah J; Centre for Applied Materials and Industrial Chemistry (CAMIC), RMIT University Australia., Dasireddy VDBC; School of Environment & Science, Centre for Catalysis and Clean Energy, Griffith University Gold Coast Campus QLD 4222 Australia., Liem NQ; Institute of Materials Science, Vietnam Academy of Science and Technology 18 Hoang Quoc Viet, Cau Giay Hanoi Vietnam dieuthuy@ims.vast.vn liemnq@vast.vn.
Jazyk: angličtina
Zdroj: RSC advances [RSC Adv] 2024 Jan 22; Vol. 14 (5), pp. 3489-3497. Date of Electronic Publication: 2024 Jan 22 (Print Publication: 2024).
DOI: 10.1039/d3ra07639c
Abstrakt: Metal organic frameworks (MOFs) are attractive materials to generate multifunctional catalysts for the electrocatalytic reduction of CO 2 to hydrocarbons. Here we report the synthesis of Cu and Zn modified Al-fumarate (Al-fum) MOFs, in which Zn promotes the selective reduction of CO 2 to CO and Cu promotes CO reduction to oxygenates and hydrocarbons in an electrocatalytic cascade. Cu and Zn nanoparticles (NPs) were introduced to the Al-fum MOF by a double solvent method to promote in-pore metal deposition, and the resulting reduced Cu-Zn@Al-fum drop-cast on a hydrophobic gas diffusion electrode for electrochemical study. Cu-Zn@Al-fum is active for CO 2 electroreduction, with the Cu and Zn loading influencing the product yields. The highest faradaic efficiency (FE) of 62% is achieved at -1.0 V vs. RHE for the conversion of CO 2 into CO, HCOOH, CH 4 , C 2 H 4 and C 2 H 5 OH, with a FE of 28% to CH 4 , C 2 H 4 and C 2 H 5 OH at pH 6.8. Al-fum MOF is a chemically robust matrix to disperse Cu and Zn NPs, improving electrocatalyst lifetime during CO 2 reduction by minimizing transition metal aggregation during electrode operation.
Competing Interests: There are no conflicts of interest to declare.
(This journal is © The Royal Society of Chemistry.)
Databáze: MEDLINE
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