Tween20 surfactant effect on the electrocatalytic performance of porous carbon micro-spheres supported MnO2
Tween20 surfactant effect on the electrocatalytic performance of porous carbon micro-spheres supported MnO2
复制标题
Tween20表面活性剂对多孔碳微球负载MnO2电催化性能的影响
DOI:
10.1039/c4ra09169h
复制
发表时间:
2014-10
期刊:
影响因子:
3.9
通讯作者:
Wang Hong-Qiang
中科院分区:
文献类型:
--
作者:
Li Qing-Yu;Wu Yong-Sheng;Zhang Xiao-Hui;Huang You-Guo;Wu Qiang;Wang Hong-Qiang
This study is concerned with the electrocatalytic evolution of oxygen at polyoxyethylene sorbitan monolaurate (Tween20) modified porous carbon micro-spheres (PCS) supported MnO2 catalyst in 0.1 M KOH solution. The Super P (SP) was used to improve the electrical conductivity of the catalyst. The electrochemical measurements revealed a significant enhancement of the electrocatalytic activity of the MnO2/PCS towards the oxygen evolution reaction (OER) upon the Tween20 modification. The onset potentials of the OER at the Tween20 modified MnO2/PCS particles electrode are more negative by about 0.162 V compared with the bare (i.e. unmodified) MnO2/PCS electrode. Tween20 is absorbed on the surface of MnO2/PCS and covers the entire surface of the MnO2/PCS particles homogeneously. The Tween20 plays a vital role as a catalytic mediator, which facilitates the ion transfer during the water oxidation into molecular oxygen and thus the OER is accomplished at less positive potentials.
登录
查看更多内容
影响因子:
4.5
作者:
X. Tong;M. Aindow;J. Farr
通讯作者:
X. Tong;M. Aindow;J. Farr
影响因子:
6.6
作者:
A. Polcaro;S. Palmas
通讯作者:
A. Polcaro;S. Palmas
影响因子:
3
作者:
Zonghui Yi;Yongguang Liang;Xuefeng Lei;Chiwei Wang;Ju-tang Sun
通讯作者:
Zonghui Yi;Yongguang Liang;Xuefeng Lei;Chiwei Wang;Ju-tang Sun
影响因子:
15
作者:
Yeo, Boon Siang;Bell, Alexis T.
通讯作者:
Bell, Alexis T.
影响因子:
9.9
作者:
Dao-Jun Guo;Hu-lin Li
通讯作者:
Dao-Jun Guo;Hu-lin Li