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Cu-Sn Aerogels for Electrochemical CO(2) Reduction with High CO Selectivity

This work reports the synthesis of Cu(x)Sn(y) alloy aerogels for electrochemical CO(2) reduction catalysts. An in situ reduction and the subsequent freeze-drying process can successfully give CnxSny aerogels with tuneable Sn contents, and such aerogels are composed of three-dimensional architectures...

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Autores principales: Pan, Yexin, Wu, Muchen, Ye, Ziran, Tang, Haibin, Hong, Zhanglian, Zhi, Mingjia
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9919718/
https://www.ncbi.nlm.nih.gov/pubmed/36770699
http://dx.doi.org/10.3390/molecules28031033
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author Pan, Yexin
Wu, Muchen
Ye, Ziran
Tang, Haibin
Hong, Zhanglian
Zhi, Mingjia
author_facet Pan, Yexin
Wu, Muchen
Ye, Ziran
Tang, Haibin
Hong, Zhanglian
Zhi, Mingjia
author_sort Pan, Yexin
collection PubMed
description This work reports the synthesis of Cu(x)Sn(y) alloy aerogels for electrochemical CO(2) reduction catalysts. An in situ reduction and the subsequent freeze-drying process can successfully give CnxSny aerogels with tuneable Sn contents, and such aerogels are composed of three-dimensional architectures made from inter-connected fine nanoparticles with pores as the channels. Density functional theory (DFT) calculations show that the introduction of Sn in Cu aerogels inhibits H(2) evolution reaction (HER) activity, while the accelerated CO desorption on the catalyst surface is found at the same time. The porous structure of aerogel also favors exposing more active sites. Counting these together, with the optimized composition of Cu(95)Sn(5) aerogel, the high selectivity of CO can be achieved with a faradaic efficiency of over 90% in a wide potential range (−0.7 V to −1.0 V vs. RHE).
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spelling pubmed-99197182023-02-12 Cu-Sn Aerogels for Electrochemical CO(2) Reduction with High CO Selectivity Pan, Yexin Wu, Muchen Ye, Ziran Tang, Haibin Hong, Zhanglian Zhi, Mingjia Molecules Article This work reports the synthesis of Cu(x)Sn(y) alloy aerogels for electrochemical CO(2) reduction catalysts. An in situ reduction and the subsequent freeze-drying process can successfully give CnxSny aerogels with tuneable Sn contents, and such aerogels are composed of three-dimensional architectures made from inter-connected fine nanoparticles with pores as the channels. Density functional theory (DFT) calculations show that the introduction of Sn in Cu aerogels inhibits H(2) evolution reaction (HER) activity, while the accelerated CO desorption on the catalyst surface is found at the same time. The porous structure of aerogel also favors exposing more active sites. Counting these together, with the optimized composition of Cu(95)Sn(5) aerogel, the high selectivity of CO can be achieved with a faradaic efficiency of over 90% in a wide potential range (−0.7 V to −1.0 V vs. RHE). MDPI 2023-01-19 /pmc/articles/PMC9919718/ /pubmed/36770699 http://dx.doi.org/10.3390/molecules28031033 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
Pan, Yexin
Wu, Muchen
Ye, Ziran
Tang, Haibin
Hong, Zhanglian
Zhi, Mingjia
Cu-Sn Aerogels for Electrochemical CO(2) Reduction with High CO Selectivity
title Cu-Sn Aerogels for Electrochemical CO(2) Reduction with High CO Selectivity
title_full Cu-Sn Aerogels for Electrochemical CO(2) Reduction with High CO Selectivity
title_fullStr Cu-Sn Aerogels for Electrochemical CO(2) Reduction with High CO Selectivity
title_full_unstemmed Cu-Sn Aerogels for Electrochemical CO(2) Reduction with High CO Selectivity
title_short Cu-Sn Aerogels for Electrochemical CO(2) Reduction with High CO Selectivity
title_sort cu-sn aerogels for electrochemical co(2) reduction with high co selectivity
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9919718/
https://www.ncbi.nlm.nih.gov/pubmed/36770699
http://dx.doi.org/10.3390/molecules28031033
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