Synthesis and Electrochemical Property of Boron-Doped Mesoporous Carbon in Supercapacitor

被引：504
|
作者：
Wang, Da-Wei [1 ]
Li, Feng [1 ]
Chen, Zhi-Gang [1 ]
Lu, Gao Qing [2 ,3 ]
Cheng, Hui-Ming [1 ]
机构：
[1] Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China
[2] Univ Queensland, Australian Res Council Ctr Funct Nanomat, AIBN, Brisbane, Qld 4072, Australia
[3] Univ Queensland, Sch Engn, Brisbane, Qld 4072, Australia
来源：
CHEMISTRY OF MATERIALS | 2008年 / 20卷 / 22期
基金：
中国国家自然科学基金;
关键词：
D O I：
10.1021/cm801729y
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Mesoporous carbon with homogeneous boron dopant was prepared by co-impregnation and carbonization of sucrose and boric acid confined in mesopores of SBA-15 silica template. Low-level boron doping shows catalytic effect on oxygen chemisorption at edge planes and alters electronic structure of space charge layer of doped mesoporous carbon. These characteristics are responsible for substantial improvement of interfacial capacitance by 1.5-1.6 times higher in boron-doped carbon than that in boron-free carbon with alkaline electrolyte (6 M KOH) and/or acid electrolyte (I M H2SO4). This finding should be very useful for developing new doped carbon electrode materials for supercapacitors.
引用
收藏
页码：7195 / 7200
页数：6
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