High-capacitance supercapacitors using nitrogen-decorated porous carbon derived from novolac resin containing peptide linkage

被引：21

作者：

Kim, Yong Jung ^{[2
]}

Jang, In Young ^{[1
]}

Park, Ki Chul ^{[1
]}

Jung, Yong Chae ^{[1
]}

Oka, Takuyuki ^{[1
]}

Iinou, Satoshi ^{[3
]}

Komori, Yasuhiro ^{[4
]}

Kozutsumi, Toshihiko ^{[4
]}

Hashiba, Takashi ^{[4
]}

Kim, Yoong Ahm ^{[1
]}

Endo, Morinobu ^{[1
,2
]}

机构：

[1] Shinshu Univ, Dept Elect & Elect Engn, Fac Engn, Nagano 3808553, Japan

[2] Shinshu Univ, Inst Carbon Sci & Technol, Nagano 3808553, Japan

[3] MEFS Co Ltd, Nagano 3800921, Japan

[4] SHOWA HIGHPOLYMER Co Ltd, Isesaki City, Gunma 3720833, Japan

来源：

ELECTROCHIMICA ACTA | 2010年 / 55卷 / 20期

关键词：

Porous carbon; Novolac resin; Nitrogen atom; Porosity; X-ray photoemission spectroscopy; Capacitance; PERFORMANCE; ELECTRODE; ENERGY;

D O I：

10.1016/j.electacta.2010.04.094

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

We fabricated nitrogen-decorated porous carbon exhibiting high capacitance per unit volume and unit weight via chemical activation of novolac resin containing peptide linkage. The porosity and the amount of nitrogen atoms were controlled by changing the molecular weight of novolac resin, the added amount of potassium hydroxide, or both. After chemical activation, positively charged nitrogen atoms (i.e., pyridine/pyrrole) at 400.3 eV in photoemission spectra contributed to both a shift in the point of zero charge toward negative potential and the generation of pseudocapacitance. Suitably developed pores and the positively charged nitrogen atoms make nitrogen-decorated novolac resin-derived porous carbon a promising material for electrodes in high-performance supercapacitors. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：5624 / 5628

页数：5

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