A General Self-Sacrifice Template Strategy to 3D Heteroatom-Doped Macroporous Carbon for High-Performance Potassium-Ion Hybrid Capacitors

Nano-Micro Letters

Junxiang Chen¹  Yangjie Liu¹  Yaxin Ji¹  Guobao Zhong¹  Xiang Hu¹  Junwei Li¹  Zhenhai Wen¹ 

[1] CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research On the Structure of Matter, Chinese Academy of Sciences, 350002, Fuzhou, Fujian, People’s Republic of China;

关键词: Potassium-ion hybrid capacitors;    Self-sacrifice template;    Se/N co-doped;    3D macroporous;    Long service life;   

DOI  :  10.1007/s40820-021-00659-7

来源: Springer

【 摘 要 】

tsA newly versatile self-sacrifice method to fabricate selenium and nitrogen co-doped 3D macroporous carbon was developed.The K+ storage mechanism of Se and N active sites was deeply studied by systematic electrochemical characterization combined with theoretical calculations.The assembled K-ion hybrid capacitor possesses high energy/power densities and excellent cycling stability for practical applications.

【 授权许可】

CC BY