Microscopic insights into the Faradaic reaction effects on the electric double layers
Microscopic insights into the Faradaic reaction effects on the electric double layers
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法拉第反应对双电层影响的微观见解
DOI：
10.1016/j.ces.2019.115452
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发表时间：
2020-04
影响因子：
4.7
通讯作者：
Jianzhong Wu
中科院分区：
文献类型：
--
作者：
Haiping Su;Cheng Lian;Alej;ro Gallegos;Shengwei Deng;Yazhuo Shang;Honglai Liu;Jianzhong Wu
Oxygen-containing functional groups have strong effect on the electrochemical capacitive behavior of carbon electrodes and have been subjected to many experimental investigations. However, there are relatively few theoretical reports on the relation between the oxygen-containing functional groups and the capacitance of carbon supercapacitors. In this study, we present a simple molecular model to describe electric double layer (EDL) in the presence of Faradaic reactions. We find that electrodes modified with oxygen functional groups increase the Faradaic capacitance but have relatively little influence on the EDL capacitance. The theoretical predictions agree quantitatively with experimental observations. We hope that this joint model by combining quantum DFT and classical DFT could provide a theoretical routine to study pseudocapacitors.
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