摘要
以聚丙烯腈(PAN)为前驱体,制备具有发达三维网络结构的大/中孔PAN纤维,采用水合肼和盐酸羟胺处理使PAN纤维在产生交联反应的同时进一步引入氮原子,制备了富氮多孔碳纤维,并考察了富氮多孔碳纤维的形貌结构、孔结构特征及电化学性能。结果表明:富氮多孔碳纤维中的N和O原子含量分别为13.53%和8.01%,在电流密度为0.1 A/g时,比电容为222 F/g,比表面电容达0.80 F/m2。
Meso-/macroporous polyacrylonitrile （PAN） fibers with well-developed three-dimensional net- work were fabricated using PAN as precursor. After the stabilization of PAN fibers by hydrazine hydrate and hydroxylamine hydrochloride, nitrogen atoms were introduced and nitrogen-enriched porous carbon fi- bers 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 O. 8 F/m2 were achieved at the current density of 0. 1 A/g.
出处
《化学工业与工程》
CAS
2014年第3期34-38,共5页
Chemical Industry and Engineering
关键词
富氮碳
大
中孔
超级电容器
nitrogen-enriched carbon
meso-/macropores
supercapacitor
