Preparation of Nitrogen-Enriched Porous Carbon Fibers as Supercapacitor Electrode Materials
LI Ying1, 2 , ZHANG Shou-Chun1, Lv Chun-Xiang1
（1National Engineering Laboratory for Carbon Fiber Technology, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China； 2University of Chinese Academy of Sciences, Beijing 100049, China）
Abstract：
Meso-/macroporous polyacrylonitrile (PAN) fibers with well-developed three-dimensional network were fabricated using PAN as precursor. After the stabilization of PAN fibers by hydrazine hydrate and hydroxylamine hydrochloride, nitrogen atoms were introduced and nitrogenenriched porous carbon fibers were obtained. The morphology, porous structure and electrochemical property of nitrogen-enriched porous carbon fibers were characterized. The results indicated that the atomic contents of the N and O heteroatoms within the nitrogen-enriched porous carbon fibers were 13.53% and 8.01%, respectively. The maximal specific capacitance of 222 F/g and the high specific surface capacitance of 0.8 F/m2 were achieved at the current density of 0.1 A/g.
LI Ying , ZHANG Shou-Chun, Lv Chun-Xiang.Preparation of Nitrogen-Enriched Porous Carbon Fibers as Supercapacitor Electrode Materials[J]. Chemcial Industry and Engineering, 2014,31(3): 34-38
2014, Vol. 31 
