Ultrasound-boosted selectivity of CO in CO2 electrochemical reduction

Ultrasound-boosted selectivity of CO in CO2 electrochemical reduction

Among the possible products of CO2 electrochemical reduction, CO plays a unique and vital role, which can be an ideal feedstock for further reduction to C2+ products, and also the important component of syngas that can be used as feedstock for value-added chemicals and fuels. However, it is still a...

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Main Authors: Yang Yang, Yiqing Feng, Kejian Li, Saira Ajmal, Hanyun Cheng, Kedong Gong, Liwu Zhang
Format: Article
Language:English
Published: Elsevier 2021-08-01
Series:Ultrasonics Sonochemistry
Subjects:
Electrochemical CO2 reduction
CO
Ultrasonic
Cu electrode
In-situ Raman
Online Access:http://www.sciencedirect.com/science/article/pii/S1350417721001656
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spelling doaj-1490ac1df1b64169a3c6ba1381f9cc7f2021-07-25T04:42:22ZengElsevierUltrasonics Sonochemistry1350-41772021-08-0176105623Ultrasound-boosted selectivity of CO in CO2 electrochemical reductionYang Yang0Yiqing Feng1Kejian Li2Saira Ajmal3Hanyun Cheng4Kedong Gong5Liwu Zhang6Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, PR ChinaShanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, PR ChinaShanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, PR ChinaShanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, PR ChinaShanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, PR ChinaShanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, PR ChinaShanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, PR China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, PR China; Corresponding author at: Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, PR China.Among the possible products of CO2 electrochemical reduction, CO plays a unique and vital role, which can be an ideal feedstock for further reduction to C2+ products, and also the important component of syngas that can be used as feedstock for value-added chemicals and fuels. However, it is still a challenge to tune the CO selectivity on Cu electrode. Here we newly construct an ultrasound-assisted electrochemical method for CO2 reduction, which can tune the selectivity of CO2 to CO from less than 10% to >80% at −1.18 V versus (vs.) reversible hydrogen electrode (RHE). The partial current density of CO production is significantly improved by 15 times. By in-situ Raman study, the dominating factor for the improved CO production is attributed to the accelerated desorption of *CO intermediate. This work provides a facile method to tune the product selectivity in CO2 electrochemical reduction.http://www.sciencedirect.com/science/article/pii/S1350417721001656Electrochemical CO2 reductionCOUltrasonicCu electrodeIn-situ Raman
collection DOAJ
language English
format Article
sources DOAJ
author Yang Yang
Yiqing Feng
Kejian Li
Saira Ajmal
Hanyun Cheng
Kedong Gong
Liwu Zhang
spellingShingle Yang Yang
Yiqing Feng
Kejian Li
Saira Ajmal
Hanyun Cheng
Kedong Gong
Liwu Zhang
Ultrasound-boosted selectivity of CO in CO2 electrochemical reduction
Ultrasonics Sonochemistry
Electrochemical CO2 reduction
CO
Ultrasonic
Cu electrode
In-situ Raman
author_facet Yang Yang
Yiqing Feng
Kejian Li
Saira Ajmal
Hanyun Cheng
Kedong Gong
Liwu Zhang
author_sort Yang Yang
title Ultrasound-boosted selectivity of CO in CO2 electrochemical reduction
title_short Ultrasound-boosted selectivity of CO in CO2 electrochemical reduction
title_full Ultrasound-boosted selectivity of CO in CO2 electrochemical reduction
title_fullStr Ultrasound-boosted selectivity of CO in CO2 electrochemical reduction
title_full_unstemmed Ultrasound-boosted selectivity of CO in CO2 electrochemical reduction
title_sort ultrasound-boosted selectivity of co in co2 electrochemical reduction
publisher Elsevier
series Ultrasonics Sonochemistry
issn 1350-4177
publishDate 2021-08-01
description Among the possible products of CO2 electrochemical reduction, CO plays a unique and vital role, which can be an ideal feedstock for further reduction to C2+ products, and also the important component of syngas that can be used as feedstock for value-added chemicals and fuels. However, it is still a challenge to tune the CO selectivity on Cu electrode. Here we newly construct an ultrasound-assisted electrochemical method for CO2 reduction, which can tune the selectivity of CO2 to CO from less than 10% to >80% at −1.18 V versus (vs.) reversible hydrogen electrode (RHE). The partial current density of CO production is significantly improved by 15 times. By in-situ Raman study, the dominating factor for the improved CO production is attributed to the accelerated desorption of *CO intermediate. This work provides a facile method to tune the product selectivity in CO2 electrochemical reduction.
topic Electrochemical CO2 reduction
CO
Ultrasonic
Cu electrode
In-situ Raman
url http://www.sciencedirect.com/science/article/pii/S1350417721001656
work_keys_str_mv AT yangyang ultrasoundboostedselectivityofcoinco2electrochemicalreduction
AT yiqingfeng ultrasoundboostedselectivityofcoinco2electrochemicalreduction
AT kejianli ultrasoundboostedselectivityofcoinco2electrochemicalreduction
AT sairaajmal ultrasoundboostedselectivityofcoinco2electrochemicalreduction
AT hanyuncheng ultrasoundboostedselectivityofcoinco2electrochemicalreduction
AT kedonggong ultrasoundboostedselectivityofcoinco2electrochemicalreduction
AT liwuzhang ultrasoundboostedselectivityofcoinco2electrochemicalreduction
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