文献类型：期刊文献

英文题名：High Electrochemical Performance Bi2o3/Bi2s3 Nanocomposites for Energy Storage Device Applications

作者：Chen, Xin[1]; Yan, Wei[1]; Wang, Zhiqiang[2]; Zhao, Ziyue[1]; Liu, Yang[1]; Abdullah, Muhammad[1]

机构：[1] School of Materials Science and Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China; [2] State Key Laboratory of Green Chemical Engineering and Industrial Catalysis, Centre for Computational Chemistry, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China

年份：2024

外文期刊名：SSRN

收录：EI(收录号：20240363527)

语种：英文

外文关键词：Bismuth compounds - Capacitor storage - Electrochemistry - Germanium compounds

摘要：The fabrication of highly effective negative electrode materials is still a great challenge for achieving high-performance supercapacitors/electrochemical energy storage devices. In this paper, we firstly report a 3D rod-sheet crossed architectures Bi2O3/Bi2S3 via an in situ converted method. Then we expound the synergistic effect origins between Bi2O3 and Bi2S3 with two aspects of morphology transformation and density functional theory calculations (DFT), which predict a superb performance. The resultant Bi2O3/Bi2S3 electrodes obtain an ultrahigh performance of 4652 F g-1 (4186 C g-1/1162 mAh g-1) at 1 A g-1. An asymmetric device Bi2O3/Bi2S3//NiS delivers a high energy density of 91.56 Wh kg-1 at a power density of 682.20 W kg-1 and kept an energy density of 47.30 Wh kg-1 at a higher power density of 7498.00 W kg-1. This work will be helpful for pushing forward along the supercapacitor/energy-storage roadmap to achieve the ultra high energy density/power density goal, as well as provides a fabrication strategy of high-performance composites for other research areas. ? 2024, The Authors. All rights reserved.