Improvement in electrochemical capacitance of activated carbon from scrap tires by nitric acid treatment

被引：14

作者：

Han, Yan ^{[1
,2
,3
]}

Zhao, Ping-Ping ^{[1
,2
,3
]}

Dong, Xiao-Ting ^{[1
,2
,3
]}

Zhang, Cui ^{[1
,2
,3
]}

Liu, Shuang-Xi ^{[1
,2
,3
]}

机构：

[1] Nankai Univ, Coll Chem, Inst New Catalyt Mat Sci, Tianjin 300071, Peoples R China

[2] Key Lab Adv Energy Mat Chem MOE, Tianjin 300071, Peoples R China

[3] Collaborat Innovat Ctr Chem Sci & Engn Tianjin, Tianjin 300071, Peoples R China

来源：

FRONTIERS OF MATERIALS SCIENCE | 2014年 / 8卷 / 04期

基金：

国家科技攻关计划; 中国国家自然科学基金;

关键词：

pyrolytic tire char; activated carbon (AC); nitric acid treatment; electrochemical capacitance; supercapacitor; HIERARCHICAL POROUS CARBONS; DOUBLE-LAYER CAPACITORS; HIGH-PERFORMANCE; ELECTRODES; SUPERCAPACITORS; PYROLYSIS; ENERGY; CHAR;

D O I：

10.1007/s11706-014-0271-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Activated carbon (AC) obtained from the industrial pyrolytic tire char is treated by concentrated nitric acid (AC-HNO3) and then used as the electrode material for supercapacitors. Surface properties and electrochemical capacitances of AC and ACHNO(3) are studied. It is found that the morphology and the porous texture for AC and AC-HNO3 have little difference, while the oxygen content increases and functional groups change after the acid treatment. Electrochemical results demonstrate that the AC-HNO3 electrode displays higher specific capacitance, better stability and cycling performance, and lower equivalent series resistance, indicating that AC obtained from the industrial pyrolytic tire char treated by concentrated nitric acid is applicable for supercapacitors.

引用

页码：391 / 398

页数：8

共 24 条

[1] A fish scale based hierarchical lamellar porous carbon material obtained using a natural template for high performance electrochemical capacitors [J].