Enhanced Potassium-Ion Storage of the 3D Carbon Superstructure by Manipulating the Nitrogen-Doped Species and Morphology

Nano-Micro Letters

Aiping Hu¹  Yali Xu¹  Qunli Tang¹  Ming Gao¹  Xiaohua Chen¹  Cong Huang¹  Binbin Fan¹  Yanhua Li²  Kui Xiao³  Jin Wang⁴ 

[1] College of Materials Science and Engineering, Hunan University, 410082, Changsha, People’s Republic of China;College of Materials Science and Engineering, Hunan University, 410082, Changsha, People’s Republic of China;College of Materials and Chemistry Engineering, Hunan Institute of Technology, 421002, Hengyang, People’s Republic of China;College of Materials and Chemistry Engineering, Hunan Institute of Technology, 421002, Hengyang, People’s Republic of China;Zhuzhou Times New Material Technology Co., LTD, 412007, Zhuzhou, People’s Republic of China;

关键词: Polyimide;    Nitrogen-doped;    Potassium-ion battery;    3D carbon material;   

DOI  :  10.1007/s40820-020-00525-y

来源: Springer

【 摘 要 】

tsAn eco-efficient synthetic route was developed to establish carbon superstructures with enhanced exposed nitrogen-rich active facets.The synergistic effect of the 3D interconnected superstructures and the high nitrogen-doping content endows the N-rich carbon superstructures (NCS-5) with not only increased potassium-ion storage capabilities but also superior rate and cycling performance.The regulation of the nitrogen doping types and morphology of NCS-5 is also discussed in detail based on the experiment results and density functional theory calculations.

【 授权许可】

CC BY