TY - JOUR
T1 - Polymer Modification Strategy to Modulate Reaction Microenvironment for Enhanced CO2 Electroreduction to Ethylene
AU - Deng, Ting
AU - Jia, Shuaiqiang
AU - Chen, Chunjun
AU - Jiao, Jiapeng
AU - Chen, Xiao
AU - Xue, Cheng
AU - Xia, Wei
AU - Xing, Xueqing
AU - Zhu, Qinggong
AU - Wu, Haihong
AU - He, Mingyuan
AU - Han, Buxing
N1 - Publisher Copyright:
© 2023 Wiley-VCH GmbH.
PY - 2024/1/8
Y1 - 2024/1/8
N2 - Modulation of the microenvironment on the electrode surface is one of the effective means to improve the efficiency of electrocatalytic carbon dioxide reduction (eCO2RR). To achieve high conversion rates, the phase boundary at the electrode surface should be finely controlled to overcome the limitation of CO2 solubility in the aqueous electrolyte. Herein, we developed a simple and efficient method to structure electrocatalyst with a superhydrophobic surface microenvironment by one-step co-electrodeposition of Cu and polytetrafluoroethylene (PTFE) on carbon paper. The super-hydrophobic Cu-based electrode displayed a high ethylene (C2H4) selectivity with a Faraday efficiency (FE) of 67.3 % at −1.25 V vs. reversible hydrogen electrode (RHE) in an H-type cell, which is 2.5 times higher than a regular Cu electrode without PTFE. By using PTFE as a surface modifier, the activity of eCO2RR is enhanced and water (proton) adsorption is inhibited. This strategy has the potential to be applied to other gas-conversion electrocatalysts.
AB - Modulation of the microenvironment on the electrode surface is one of the effective means to improve the efficiency of electrocatalytic carbon dioxide reduction (eCO2RR). To achieve high conversion rates, the phase boundary at the electrode surface should be finely controlled to overcome the limitation of CO2 solubility in the aqueous electrolyte. Herein, we developed a simple and efficient method to structure electrocatalyst with a superhydrophobic surface microenvironment by one-step co-electrodeposition of Cu and polytetrafluoroethylene (PTFE) on carbon paper. The super-hydrophobic Cu-based electrode displayed a high ethylene (C2H4) selectivity with a Faraday efficiency (FE) of 67.3 % at −1.25 V vs. reversible hydrogen electrode (RHE) in an H-type cell, which is 2.5 times higher than a regular Cu electrode without PTFE. By using PTFE as a surface modifier, the activity of eCO2RR is enhanced and water (proton) adsorption is inhibited. This strategy has the potential to be applied to other gas-conversion electrocatalysts.
KW - CO Reduction Reaction
KW - Ethylene
KW - Polymer Modification
KW - Superhydrophobic Surface
KW - “Gas-Liquid-Solid” Interface
UR - https://www.scopus.com/pages/publications/85178906671
U2 - 10.1002/anie.202313796
DO - 10.1002/anie.202313796
M3 - 文章
C2 - 38015565
AN - SCOPUS:85178906671
SN - 1433-7851
VL - 63
JO - Angewandte Chemie - International Edition
JF - Angewandte Chemie - International Edition
IS - 2
M1 - e202313796
ER -