title: N-Doped carbon spheres with hierarchical micropore-nanosheet networks for high performance supercapacitors.
abstract: N-doped carbon spheres with hierarchical micropore-nanosheet networks (HPSCSs) were facilely fabricated by a one-step carbonization and activation process of N containing polymer spheres by KOH. With the synergy effect of the multiple structures, HPSCSs exhibit a very high specific capacitance of 407.9 F g(-1) at 1 mV s(-1) (1.2 times higher than that of porous carbon spheres) and a robust cycling stability for supercapacitors.
authors.affiliation: College of Material Science and Engineering, Zhengzhou University, Zhengzhou 450001, P. R. China. zjn@zzu.edu.cn qunxu@zzu.edu.cn.
authors.forename: Shoupei
authors.initials: S
authors.lastname: Wang
authors.forename: Jianan
authors.initials: J
authors.lastname: Zhang
authors.forename: Pei
authors.initials: P
authors.lastname: Shang
authors.forename: Yuanyuan
authors.initials: Y
authors.lastname: Li
authors.forename: Zhimin
authors.initials: Z
authors.lastname: Chen
authors.forename: Qun
authors.initials: Q
authors.lastname: Xu