Preparation and characterization of carbon aerogel microspheres by an inverse emulsion polymerization

被引：36

作者：

Wang, Xingyan ^{[1
,2
,3
]}

Wang, Xianyou ^{[1
,3
]}

Liu, Li ^{[1
]}

Bai, Li ^{[1
]}

An, Hongfang ^{[1
]}

Zheng, Liping ^{[1
]}

Yi, Lanhua ^{[1
]}

机构：

[1] Xiangtan Univ, Key Lab Environm Friendly Chem & Applicat, Minist Educ, Sch Chem, Xiangtan 411105, Hunan, Peoples R China

[2] Hunan Inst Human Sci & Technol, Loudi 417000, Peoples R China

[3] Key Lab Mat Design & Preparat Technol Hunan Prov, Xiangtan 411105, Peoples R China

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 2011年 / 357卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Carbon aerogel microspheres; Inverse emulsion polymerization; Specific surface area; Specific capacitance; SUPERCAPACITORS; PERFORMANCE; SURFACE; ELECTRODES; SPHERES; ARRAYS; SIZE; EDLC;

D O I：

10.1016/j.jnoncrysol.2010.11.015

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

081705 [工业催化]; 082905 [生物质能源与材料];

摘要：

Carbon aerogel (CA) microspheres have been successfully synthesized by an inverse emulsion polymerization and characterized by scanning electron microscopy (SEM), N(2) sorption isotherm and X-ray diffraction (XRD). The results show that the size and pore characteristics of carbon microsphere obviously depend on stirring speed and concentration of surfactant in the emulsion polymerization process. The resultant CA microspheres are amorphous carbon structure with the size ranging from about 2 to 50 pm by changing the stirring speed. CA microspheres with S(BET) of 414-603 m(2) g(-1) and V(meso) of 0.028-0.432 cm(3) g(-1) are synthesized using different SPAN80 concentrations. The results of cyclic voltammetry indicate that the CA microspheres prepared at a stirring speed of 480 rpm and at V(s)/V(h) = 0.01 have ideal supercapacitive behavior in 6 M KOH electrolyte, the maximum specific capacitance of the electrode reaches 180 F 2010 Elsevier B.V. All rights reserved.

引用

页码：793 / 797

页数：5

共 21 条

[1]

Acetic-acid-catalyzed and subcritically dried carbon aerogels with a nanometer-sized structure and a wide density range [J].