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Updated: Nov 5, 2025

Evaluating the Electrochemical Properties of Supercapacitors using the Three-Electrode System
Published on: January 7, 2022
A new neodymium-phosphine compound for supercapacitors with long-term cycling stability
Xiaoyu Li1, Huimin Chen1, Chenyu Yang1
1Fujian Key Laboratory of Electrochemical Energy Storage Materials, Fuzhou University, Fuzhou, Fujian 350002, China. liyf@fzu.edu.cn wei-mingdeng@fzu.edu.cn.
Abstract:
A new neodymium-phosphine compound (Nd-(Ph)3P) was used for the first time as an electrode for supercapacitors and exhibited an extraordinary capacitance of 951 F g-1 at 0.5 A g-1 with a high capacitance retention of 96% after 10 000 cycles at 10 A g-1, which is the highest capacitance for rare earth based materials in SCs. Such an excellent performance might be due to the fact that this material can provide plenty of electron-active sites for charge storage and electrolyte diffusion can be efficiently promoted.
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