Activated Carbon Microtubes Prepared from Plant Biomass (Poplar Catkins) and Their Application for Supercapacitors

被引：22

作者：

Wei, Yi ^{[1
]}

机构：

[1] Nanjing Forest Police Coll, Dept Police Tech & Tact, Nanjing 210023, Jiangsu, Peoples R China

来源：

CHEMISTRY LETTERS | 2014年 / 43卷 / 02期

关键词：

NANOTUBE; TEMPERATURE; ELECTRODES;

D O I：

10.1246/cl.130837

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Activated carbon microtubes (CMTs) have been prepared from poplar catkins by chemical activation with ZnCl2. The as-synthesized porous CMTs have large inner tubes of several micrometers, large Brunauer-Emmett-Teller surface areas of up to 1400 m(2) g(-1), a complex porous structure with predominant micropores (>= 80 vol %), and small amount of mesopores (<= 20 vol %). Two-electrode supercapacitor cells constructed with the activated CMTs yield a specific capacitance of 206 F g(-1) and an energy density of 7.5 W h kg(-1) with aqueous electrolyte, values that are much higher than those of an activated carbon (160 F g(-1), 5.5 W h kg(-1)).

引用

页码：216 / 218

页数：3

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