Research progress in rare earths and their composites based electrode materials for supercapacitors

• 作者: Balakrishnan Kirubasankar Chao Yan Duo Pan Hu Liu Subasri Arunachalam Subramania Angaiah Zhanhu Guo
• 来源期刊: 绿色能源与环境:英文版
• 学科: 工学
• 关键词: Rare-earth metals Rare-earth metal oxides Rare earth metal hydroxides SUPERCAPACITOR Electrode materials
• 年，卷（期）: 2020,（3）
• 页码范围: 259-273
• 页数: 15页
• 分类号: TB3

摘要

Supercapacitor is an imminent potential energy storage system,and acts as a booster to the batteries and fuel cells to provide necessary power density.In the last decade,carbon and carbonaceous materials,conducting polymers and transition metal oxide/hydroxide based electrode materials have been made to show a remarkable electrochemical performance.Rare-earth materials have attracted significant research attention as an electrode material for supercapacitor applications based on their physicochemical properties.In this review,rare earth metals,rare earth metal oxides/hydroxides,rare-earth metal chalcogenides,rare-earth metal/carbon composites and rare-earth metal/metal oxide composites based electrode materials are discussed for supercapacitors.We also discuss the energy chemistry of rare-earth metal-based materials.Besides the factors that affect the performance of the electrode materials,their evaluation methods and supercapacitor performances are discussed in details.Finally,the future outlook in rare-earth-based electrode materials is revealed towards its current developments for supercapacitor applications.