Electrochemical C-C coupling mediated by novel Sn-SnO2 supported Cu single atoms: The case of CO2 conversion to ethanol

Muhammad Aurang Zeb Gul Sial; Na Guo; Abdul Jalil; Muhammad Abbas; Muhammad Mateen; Sami Ullah; Umair Alam; Zahid Manzoor Bhat; Arshad Hussain; Xingke Cai; Panagiotis Tsiakaras

doi:10.1016/j.cej.2024.151099

Electrochemical C-C coupling mediated by novel Sn-SnO₂ supported Cu single atoms: The case of CO₂ conversion to ethanol

Muhammad Aurang Zeb Gul Sial, Na Guo, Abdul Jalil, Muhammad Abbas, Muhammad Mateen, Sami Ullah, Umair Alam, Zahid Manzoor Bhat^*, Arshad Hussain, Xingke Cai, Panagiotis Tsiakaras

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

The electrochemical reduction of CO₂ into multi-carbon containing products with high activity and selectivity still remains a big challenge. Herein, we propose a novel Cu-SACs (Cu single atoms catalyst) supported on tin-tin oxide (Cu_SA-Sn-SnO₂) synthesized following a simple wetness impregnation and sequential reduction method for the direct conversion of CO₂ into ethanol, which shows good product selectivity, activity, and stability. It is confirmed that the copper single atoms with an oxidation state close to 1 are stabilized on the Sn-SnO₂ substrates. The electrochemical analysis of Sn-SnO₂ displays selectivity towards other products apart from CO and H₂. With the impregnation with Cu single atoms, the products on the Sn-SnO₂ surface shifts from HCOOH to ethanol. With the increase in Cu content, the ethanol production increases at the expense of CO, pointing towards dimerization of C1 products. The synthesized catalyst exhibited a remarkable selectivity as high as 74 % at −0.7 V vs RHE towards ethanol production with high stability.

Original language	English
Article number	151099
Journal	Chemical Engineering Journal
Volume	489
DOIs	https://doi.org/10.1016/j.cej.2024.151099
State	Published - 1 Jun 2024

Bibliographical note

Publisher Copyright:
© 2024 Elsevier B.V.

Keywords

Carbon coupling
Electrochemical carbon dioxide reduction
Ethanol production
Formic acid
Single atom catalysts

ASJC Scopus subject areas

General Chemistry
Environmental Chemistry
General Chemical Engineering
Industrial and Manufacturing Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.cej.2024.151099

Cite this

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title = "Electrochemical C-C coupling mediated by novel Sn-SnO2 supported Cu single atoms: The case of CO2 conversion to ethanol",

abstract = "The electrochemical reduction of CO2 into multi-carbon containing products with high activity and selectivity still remains a big challenge. Herein, we propose a novel Cu-SACs (Cu single atoms catalyst) supported on tin-tin oxide (CuSA-Sn-SnO2) synthesized following a simple wetness impregnation and sequential reduction method for the direct conversion of CO2 into ethanol, which shows good product selectivity, activity, and stability. It is confirmed that the copper single atoms with an oxidation state close to 1 are stabilized on the Sn-SnO2 substrates. The electrochemical analysis of Sn-SnO2 displays selectivity towards other products apart from CO and H2. With the impregnation with Cu single atoms, the products on the Sn-SnO2 surface shifts from HCOOH to ethanol. With the increase in Cu content, the ethanol production increases at the expense of CO, pointing towards dimerization of C1 products. The synthesized catalyst exhibited a remarkable selectivity as high as 74 % at −0.7 V vs RHE towards ethanol production with high stability.",

keywords = "Carbon coupling, Electrochemical carbon dioxide reduction, Ethanol production, Formic acid, Single atom catalysts",

author = "Sial, {Muhammad Aurang Zeb Gul} and Na Guo and Abdul Jalil and Muhammad Abbas and Muhammad Mateen and Sami Ullah and Umair Alam and Bhat, {Zahid Manzoor} and Arshad Hussain and Xingke Cai and Panagiotis Tsiakaras",

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doi = "10.1016/j.cej.2024.151099",

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T1 - Electrochemical C-C coupling mediated by novel Sn-SnO2 supported Cu single atoms

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AU - Sial, Muhammad Aurang Zeb Gul

AU - Guo, Na

AU - Jalil, Abdul

AU - Abbas, Muhammad

AU - Mateen, Muhammad

AU - Ullah, Sami

AU - Alam, Umair

AU - Bhat, Zahid Manzoor

AU - Hussain, Arshad

AU - Cai, Xingke

AU - Tsiakaras, Panagiotis

PY - 2024/6/1

Y1 - 2024/6/1

N2 - The electrochemical reduction of CO2 into multi-carbon containing products with high activity and selectivity still remains a big challenge. Herein, we propose a novel Cu-SACs (Cu single atoms catalyst) supported on tin-tin oxide (CuSA-Sn-SnO2) synthesized following a simple wetness impregnation and sequential reduction method for the direct conversion of CO2 into ethanol, which shows good product selectivity, activity, and stability. It is confirmed that the copper single atoms with an oxidation state close to 1 are stabilized on the Sn-SnO2 substrates. The electrochemical analysis of Sn-SnO2 displays selectivity towards other products apart from CO and H2. With the impregnation with Cu single atoms, the products on the Sn-SnO2 surface shifts from HCOOH to ethanol. With the increase in Cu content, the ethanol production increases at the expense of CO, pointing towards dimerization of C1 products. The synthesized catalyst exhibited a remarkable selectivity as high as 74 % at −0.7 V vs RHE towards ethanol production with high stability.

AB - The electrochemical reduction of CO2 into multi-carbon containing products with high activity and selectivity still remains a big challenge. Herein, we propose a novel Cu-SACs (Cu single atoms catalyst) supported on tin-tin oxide (CuSA-Sn-SnO2) synthesized following a simple wetness impregnation and sequential reduction method for the direct conversion of CO2 into ethanol, which shows good product selectivity, activity, and stability. It is confirmed that the copper single atoms with an oxidation state close to 1 are stabilized on the Sn-SnO2 substrates. The electrochemical analysis of Sn-SnO2 displays selectivity towards other products apart from CO and H2. With the impregnation with Cu single atoms, the products on the Sn-SnO2 surface shifts from HCOOH to ethanol. With the increase in Cu content, the ethanol production increases at the expense of CO, pointing towards dimerization of C1 products. The synthesized catalyst exhibited a remarkable selectivity as high as 74 % at −0.7 V vs RHE towards ethanol production with high stability.

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KW - Formic acid

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