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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2021-08-01
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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 |
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1721283726913044480 |