N/B-co-doped ordered mesoporous carbon spheres by ionothermal strategy for enhancing supercapacitor performance

被引:58
作者
Du, Juan [1 ]
Zhang, Yue [1 ]
Lv, Haijun [1 ]
Chen, Aibing [1 ,2 ]
机构
[1] Hebei Univ Sci & Technol, Coll Chem & Pharmaceut Engn, 70 Yuhua Rd, Shijiazhuang 050018, Hebei, Peoples R China
[2] Chinese Acad Sci, Inst Coal Chem, CAS Key Lab Carbon Mat, Beijing, Peoples R China
基金
中国国家自然科学基金;
关键词
N/B-co-doped; Order mesoporous; Carbon spheres; Ionothermal; Supercapacitor;
D O I
10.1016/j.jcis.2020.11.037
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
Heteroatom doping in carbonaceous materials is an effective way to improve the performance of super capacitors. Herein, the N/B-co-doped ordered mesoporous carbon spheres (N/B-OMC) were developed by a facile ionothermal strategy. The ordered mesoporous phenol/formaldehyde resin (PF) spheres were employed as carbon precursor, which was treated by ionothermal process using 1-butyl 3-methylimidazole tetrafronoroborate ([Bmim]BF4) as medium. The [Bmim]BF4 can be absorbed in the pores of PF spheres, leading to N/B-co-doping for the obtained carbon framework without damage in spherical morphology and ordered mesoporous structure. As a result, the dual-heteroatom doping, high surface area and enlarged mesopore size of N/B-OMC can enhance the electrochemical performance, exhibiting its promising as novel electrode materials. (c) 2020 Elsevier Inc. All rights reserved.
引用
收藏
页码:780 / 788
页数:9
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