文献类型：期刊文献

英文题名：BI2O3/Bi2S3 rod/sheet nanocomposites as battery-type materials for supercapacitors

作者：Yan, Wei[1];Chen, Xin[1];Wang, Zhiqiang[2,3];Zhao, Ziyue[1];Liu, Yang[1];Muhammad, Abdullah[1]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Ctr Computat Chem, Sch Chem & Mol Engn, State Key Lab Green Chem Engn & Ind Catalysis, 130 Meilong Rd, Shanghai 200237, Peoples R China;[3]East China Univ Sci & Technol, Res Inst Ind Catalysis, Sch Chem & Mol Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2025

卷号：504

外文期刊名：CHEMICAL ENGINEERING JOURNAL

收录：;EI(收录号：20245317606245);WOS:【SCI-EXPANDED(收录号:WOS:001402983100001)】；

基金：This work was supported by the National Natural Science Foundation of China (21875066) ; The National Key R & D Program of China (2023YFA1508500, 2021YFA1500700) ; the National Natural Science Foundation of China (22203030) ; Shanghai Leading Academic Discipline Project (B502) and Shanghai Key Laboratory Project (08DZ2230500) . The authors further thank Prof. X. Q. Gong for the help with DFT.

语种：英文

外文关键词：Supercapacitors; Electrochemistry; Bismuth composites; In-situ

摘要：The fabrication of highly effective negative electrode materials is still a great challenge for achieving highperformance supercapacitors/electrochemical energy storage devices. In this paper, we firstly report a 3D rodsheet 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 display an ultrahigh performance of 3103F g- 1 (2792C g-1/775 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 keeps an energy density of 47.30 Wh kg- 1 at a higher power density of 7498.00 W kg-1. The theoretical performance limit of the material is discussed. 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.