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Updated: Jun 17, 2026

Evaluating the Electrochemical Properties of Supercapacitors using the Three-Electrode System
Published on: January 7, 2022
Crystal engineering of manganese nitride thin film electrodes for all-nitride asymmetric supercapacitors
Quanxing Guo1, Shuyue Fang1, Binbin Wei1,2
1Key Laboratory of Functional Materials and Applications of Fujian Province, School of Materials Science and Engineering, Xiamen University of Technology, Xiamen, 361024, China. bbwei@xmut.edu.cn.
Abstract:
Crystal engineering of magnetron sputtered manganese nitride thin film electrodes is demonstrated. Mn3N2 electrodes deliver a high areal capacitance of 66.7 mF cm-2, attributed to favorable K+ adsorption, enhanced charge transfer and lower migration barrier. An asymmetric Mn3N2‖VN supercapacitor achieves an energy density of 153.1 mWh cm-3 and excellent cycling stability.

