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Regulation of Bimetallic Coordination Centers in MOF Catalyst for Electrochemical CO(2) Reduction to Formate

Electrocatalytic reduction of CO(2) to valuable chemicals can alleviate the energy crisis, and solve the greenhouse effect. The key is to develop non-noble metal electrocatalysts with high activity, selectivity, and stability. Herein, bimetallic metal organic frameworks (MOFs) materials (BiZn-MOF, B...

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Autores principales: Yang, Rui, Huang, Qun, Sha, Xuelan, Gao, Beibei, Peng, Juan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10530794/
https://www.ncbi.nlm.nih.gov/pubmed/37762141
http://dx.doi.org/10.3390/ijms241813838
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author Yang, Rui
Huang, Qun
Sha, Xuelan
Gao, Beibei
Peng, Juan
author_facet Yang, Rui
Huang, Qun
Sha, Xuelan
Gao, Beibei
Peng, Juan
author_sort Yang, Rui
collection PubMed
description Electrocatalytic reduction of CO(2) to valuable chemicals can alleviate the energy crisis, and solve the greenhouse effect. The key is to develop non-noble metal electrocatalysts with high activity, selectivity, and stability. Herein, bimetallic metal organic frameworks (MOFs) materials (BiZn-MOF, BiSn-MOF, and BiIn-MOF) were constructed by coordinating the metals Zn, In, Sn, and Bi with the organic ligand 3-amino-1H-1,2,4-triazole-5-carboxylic acid (H(2)atzc) through a rapid microwave synthesis approach. The coordination centers in bimetallic MOF catalyst were regulated to optimize the catalytic performance for electrochemical CO(2) reduction reaction (CO(2)RR). The optimized catalyst BiZn-MOF exhibited higher catalytic activity than those of Bi-MOF, BiSn-MOF, and BiIn-MOF. BiZn-MOF exhibited a higher selectivity for formate production with a Faradic efficiency (FE = 92%) at a potential of −0.9 V (vs. RHE, reversible hydrogen electrode) with a current density of 13 mA cm(−2). The current density maintained continuous electrolysis for 13 h. The electrochemical conversion of CO(2) to formate mainly follows the *OCHO pathway. The good catalytic performance of BiZn-MOF may be attributed to the Bi-Zn bimetallic coordination centers in the MOF, which can reduce the binding energies of the reaction intermediates by tuning the electronic structure and atomic arrangement. This study provides a feasible strategy for performance optimization of bismuth-based catalysts.
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spelling pubmed-105307942023-09-28 Regulation of Bimetallic Coordination Centers in MOF Catalyst for Electrochemical CO(2) Reduction to Formate Yang, Rui Huang, Qun Sha, Xuelan Gao, Beibei Peng, Juan Int J Mol Sci Article Electrocatalytic reduction of CO(2) to valuable chemicals can alleviate the energy crisis, and solve the greenhouse effect. The key is to develop non-noble metal electrocatalysts with high activity, selectivity, and stability. Herein, bimetallic metal organic frameworks (MOFs) materials (BiZn-MOF, BiSn-MOF, and BiIn-MOF) were constructed by coordinating the metals Zn, In, Sn, and Bi with the organic ligand 3-amino-1H-1,2,4-triazole-5-carboxylic acid (H(2)atzc) through a rapid microwave synthesis approach. The coordination centers in bimetallic MOF catalyst were regulated to optimize the catalytic performance for electrochemical CO(2) reduction reaction (CO(2)RR). The optimized catalyst BiZn-MOF exhibited higher catalytic activity than those of Bi-MOF, BiSn-MOF, and BiIn-MOF. BiZn-MOF exhibited a higher selectivity for formate production with a Faradic efficiency (FE = 92%) at a potential of −0.9 V (vs. RHE, reversible hydrogen electrode) with a current density of 13 mA cm(−2). The current density maintained continuous electrolysis for 13 h. The electrochemical conversion of CO(2) to formate mainly follows the *OCHO pathway. The good catalytic performance of BiZn-MOF may be attributed to the Bi-Zn bimetallic coordination centers in the MOF, which can reduce the binding energies of the reaction intermediates by tuning the electronic structure and atomic arrangement. This study provides a feasible strategy for performance optimization of bismuth-based catalysts. MDPI 2023-09-08 /pmc/articles/PMC10530794/ /pubmed/37762141 http://dx.doi.org/10.3390/ijms241813838 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Yang, Rui
Huang, Qun
Sha, Xuelan
Gao, Beibei
Peng, Juan
Regulation of Bimetallic Coordination Centers in MOF Catalyst for Electrochemical CO(2) Reduction to Formate
title Regulation of Bimetallic Coordination Centers in MOF Catalyst for Electrochemical CO(2) Reduction to Formate
title_full Regulation of Bimetallic Coordination Centers in MOF Catalyst for Electrochemical CO(2) Reduction to Formate
title_fullStr Regulation of Bimetallic Coordination Centers in MOF Catalyst for Electrochemical CO(2) Reduction to Formate
title_full_unstemmed Regulation of Bimetallic Coordination Centers in MOF Catalyst for Electrochemical CO(2) Reduction to Formate
title_short Regulation of Bimetallic Coordination Centers in MOF Catalyst for Electrochemical CO(2) Reduction to Formate
title_sort regulation of bimetallic coordination centers in mof catalyst for electrochemical co(2) reduction to formate
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10530794/
https://www.ncbi.nlm.nih.gov/pubmed/37762141
http://dx.doi.org/10.3390/ijms241813838
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