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

收藏

页码：214 / 218

页数：5

相关论文

共 21 条

[1] Electrochemical capacitor performance of mesoporous carbons obtained by templating technique [J].

Alvarez, S ;

Blanco-López, MC ;

Miranda-Ordieres, AJ ;

Fuertes, AB ;

Centeno, TA .

CARBON, 2005, 43 (04) :866-870

[2]

[Anonymous], 1999, ELECTROCHEMICAL SUPE

[3] X-ray scattering and adsorption studies of thermally oxidized glassy carbon [J].

Braun, A ;

Bärtsch, M ;

Schnyder, B ;

Kötz, R ;

Haas, O ;

Haubold, HG ;

Goerigk, G .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 1999, 260 (1-2) :1-14

[4] Ultracapacitors: why, how, and where is the technology [J].

Burke, A .

JOURNAL OF POWER SOURCES, 2000, 91 (01) :37-50

[5] Morphology and organic EDLC applications of chemically activated AR-resin-based carbons [J].

Endo, M ;

Kim, YJ ;

Ohta, H ;

Ishii, K ;

Inoue, T ;

Hayashi, T ;

Nishimura, Y ;

Maeda, T ;

Dresselhaus, MS .

CARBON, 2002, 40 (14) :2613-2626

[6] Effect of pore size distribution of coal-based activated carbons on double layer capacitance [J].

Gryglewicz, G ;

Machnikowski, J ;

Lorenc-Grabowska, E ;

Lota, G ;

Frackowiak, E .

ELECTROCHIMICA ACTA, 2005, 50 (05) :1197-1206

[7] Interfacial capacitance and electronic conductance of activated carbon double-layer electrodes [J].

Hahn, M ;

Baertschi, M ;

Barbieri, O ;

Sauter, JC ;

Kötz, R ;

Gallay, R .

ELECTROCHEMICAL AND SOLID STATE LETTERS, 2004, 7 (02) :A33-A36

[8] Electric double-layer capacitance of microporous carbon nano spheres prepared through precipitation of aromatic resin pitch [J].

Lee, SI ;

Mitani, S ;

Park, CW ;

Yoon, SH ;

Korai, Y ;

Mochida, I .

JOURNAL OF POWER SOURCES, 2005, 139 (1-2) :379-383

[9] Nitrogen-containing carbon spheres with very large uniform mesopores: The superior electrode materials for EDLC in organic electrolyte [J].

Li, Wenrong ;

Chen, Dehong ;

Li, Zheng ;

Shi, Yifeng ;

Wan, Ying ;

Wang, Guan ;

Jiang, Zhiyu ;

Zhao, Dongyuan .

CARBON, 2007, 45 (09) :1757-1763

[10] Nitrogen enriched mesoporous carbon spheres obtained by a facile method and its application for electrochemical capacitor [J].

Li, Wenrong ;

Chen, Dehong ;

Li, Zheng ;

Shi, Yifeng ;

Wan, Ying ;

Huang, Junjie ;

Yang, Jianjun ;

Zhao, Dongyuan ;

Jiang, Zhiyu .

ELECTROCHEMISTRY COMMUNICATIONS, 2007, 9 (04) :569-573