Coal tar pitch-based porous carbon by one dimensional nano-sized MgO template

被引：25

作者：

Zhang, Wenfeng ^{[1
,2
]}

Huang, Zheng-Hong ^{[1
]}

Cao, Gaoping ^{[2
]}

Kang, Feiyu ^{[1
]}

Yang, Yusheng ^{[2
]}

机构：

[1] Tsinghua Univ, Dept Mat Sci & Engn, Adv Mat Lab, Beijing 100084, Peoples R China

[2] Res Inst Chem Def, Beijing 100191, Peoples R China

来源：

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 2012年 / 73卷 / 12期

关键词：

Amorphous materials; Nanostructures; Chemical synthesis; Electrochemical properties; PORE-SIZE; PERFORMANCE; CAPACITORS;

D O I：

10.1016/j.jpcs.2011.11.017

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Porous carbons are derived by carbonizing coal tar pitch with one dimension non-silica template (needle-like nano-sized MgO). The samples are characterized by nitrogen adsorption at 77 K and XRD analysis. The electrochemical performances for supercapacitor are evaluated in a 6 M KOH aqueous solution. The results show that the as-prepared porous carbons possess abundant mesopores of 3.7-6.5 nm. With air stabilization process, the samples possess more micropores, contributing nearly 50% of surface areas. The porous carbon with large template content through air stabilization possess a high surface area of 864 m(2) g(-1). For supercapacitors electrode material, the porous carbon shows a high capacity and excellent power performance, retaining 100 F g(-1) even at a current density of 30 A g(-1). (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：1428 / 1431

页数：4

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