title: Hydrogen ion supercapacitor: a new hybrid configuration of highly dispersed MnO₂ in porous carbon coupled with nitrogen-doped highly ordered mesoporous carbon with enhanced H-insertion.
abstract: A new configuration of hydrogen ion supercapacitors was reported. A positive electrode composed of pseudocapacitive MnO2, highly dispersed into active porous carbon through an impregnation method, was combined with a nitrogen-doped highly ordered mesoporous carbon with enhanced electrochemical hydrogen insertion capacity as a negative electrode. During the operation, hydrogen ion shuttled between MnO2 and carbon electrodes. The MnO2 was formed on the surface of nanostructured carbon through a spontaneous redox reaction. Operating in an aqueous neutral solution, the hybrid device demonstrated an extended working voltage to ∼2.1 V with good cycle life.
authors.affiliation: Department of Chemistry, School of Chemistry, Chemical Engineering and Life Science and §State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology , Wuhan 430070, Hubei, P. R. China.
authors.forename: Deyu
authors.initials: D
authors.lastname: Qu
authors.forename: Jianfeng
authors.initials: J
authors.lastname: Wen
authors.forename: Dan
authors.initials: D
authors.lastname: Liu
authors.forename: Zhizhong
authors.initials: Z
authors.lastname: Xie
authors.forename: Xuran
authors.initials: X
authors.lastname: Zhang
authors.forename: Dong
authors.initials: D
authors.lastname: Zheng
authors.forename: Jiahen
authors.initials: J
authors.lastname: Lei
authors.forename: Wei
authors.initials: W
authors.lastname: Zhong
authors.forename: Haolin
authors.initials: H
authors.lastname: Tang
authors.forename: Liang
authors.initials: L
authors.lastname: Xiao
authors.forename: Deyang
authors.initials: D
authors.lastname: Qu
keywords: electrochemical hydrogen insertion; highly ordered mesoporous carbon; hydrogen ion supercapacitor; pseudocapacitive MnO2 electrode