Superior supercapacitor electrode material from hydrazine hydrate modified porous polyacrylonitrile fiber

被引：7

作者：

Li, Ying ^{[1
,2
]}

Lu, Chunxiang ^{[1
]}

Wang, Junzhong ^{[3
]}

Yan, Hua ^{[1
,4
]}

Zhang, Shouchun ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Coal Chem, Natl Engn Lab Carbon Fiber Technol, Taiyuan 030001, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[3] Chinese Acad Sci, Key Lab Carbon Mat, Inst Coal Chem, Taiyuan 030001, Peoples R China

[4] Shanxi Gangke Carbon Mat Co Ltd, Taiyuan 030100, Peoples R China

来源：

FUNCTIONAL MATERIALS LETTERS | 2016年 / 9卷 / 02期

关键词：

Supercapacitor; nitrogen; hierarchical porous carbon fiber; hydrazine hydrate; cycle stability; ACTIVATED CARBON; PERFORMANCE;

D O I：

10.1142/S1793604716500326

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A hierarchical porous carbon fiber with high nitrogen doping was fabricated for high-performance supercapacitor. For the purpose of high nitrogen retention, the porous polyacrylonitrile fiber was treated by hydrazine hydrate, and then underwent pre-oxidation, carbonization, and activation in sequence. The resulted material exhibited high nitrogen content of 7.82 at.%, large specific surface area of 1963.3m(2) g(-1), total pore volume of 1.523 cm(3) g(-1), and the pores with size range of 1-4 nm were account for 49.1%. Due to these features, the high reversible capacitance of 415 F g(-1) and the good performance in heavy load discharge were obtained. In addition, the amazing cyclability was observed after 10,000 circles without capacitance fading.

引用

页数：5

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