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Updated: Apr 25, 2026
Evaluating the Electrochemical Properties of Supercapacitors using the Three-Electrode System
Published on: January 7, 2022
N-Doped carbon spheres with hierarchical micropore-nanosheet networks for high performance supercapacitors
Shoupei Wang1, Jianan Zhang, Pei Shang
1College of Material Science and Engineering, Zhengzhou University, Zhengzhou 450001, P. R. China. zjn@zzu.edu.cn qunxu@zzu.edu.cn.
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.
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