Effects of carbonization temperature on microstructure and electrochemical performances of phenolic resin-based carbon spheres

被引：23

作者：

Du, Xuan ^{[1
]}

Wang, Cheng-Yang ^{[1
]}

Chen, Ming-Ming ^{[1
]}

Zhao, Shuo ^{[1
]}

Wang, Jin ^{[1
]}

机构：

[1] Tianjin Univ, Key Lab Green Chem Technol, Minist Educ, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China

来源：

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 2010年 / 71卷 / 03期

关键词：

Microporous materials; Electrochemical properties; Microstructure; DOUBLE-LAYER CAPACITANCE; ELECTRODE MATERIALS; ACTIVATED CARBONS; EDLC;

D O I：

10.1016/j.jpcs.2009.11.007

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Activated phenol resin-based carbon spheres (APCS) electrodes with high double layer capacitance and good rate capability were prepared from phenol resin-based spheres (PS) at different carbonization temperatures prior to KOH activation. The carbonization temperature has a marked effect on both the pore structure and the electrochemical performances of the APCS in 6 M KOH electrolyte. APCS carbonized at 600 degrees C results in higher specific surface area and larger pore size, and hence higher capacitance and better rate capability. The specific capacitance of the APCS in 6 M KOH aqueous solution can be as high as 282 F g(-1). It remains 252 F g(-1) as the current density increases to 1000 mA g(-1). (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：214 / 218

页数：5

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