Bismuth metal–organic frameworks derived bismuth selenide nanosheets/nitrogen–doped carbon hybrids as anodes for Li–ion batteries with improved cyclic performance. Issue 9 (15th June 2019)

• Record Type: Journal Article
• Authors: Li, Zhongchun; Pan, Honglin; Wei, Wenxian; Dong, Anliang; Zhang, Kailong; Lv, Hongying; He, Xianghong
• Is Part Of: Ceramics international. Volume 45:Issue 9(2019)
• Page Start: 11861
• Page End: 11867
• Publication Date: 2019-06-15
• Subjects: Bismuth metal–organic frameworks -- Bismuth selenide -- Anodes -- Li–ion battery; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2019.03.068
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: Nanohybrids have significant potential in improving the performance of Li–ion batteries (LIBs). Herein, bismuth selenide nanosheets/nitrogen–doped carbon hybrids (Bi2 Se3 @NC) are prepared by selenylation of bismuth (III) metal–organic frameworks (Bi–MOFs), which are obtained by solvothermal reaction in a mixed solvent of N, N–dimethylformamide and methanol. When served as anodes for Li–ion batteries, it was found that the post–treatment temperature of Bi–MOFs has a powerful impact on Li storage performance. Compared to Bi2 Se3 @NC–500 and Bi2 Se3 @NC–600 hybrids, Bi2 Se3 @NC–400 hybrids deliver large specific capacity, outstanding rate performance, and good cyclic stability. 410.6 mAh g −1 of capacity is gained after 50 cycles at 100 mA g −1 . Even at 500 mA g −1, 335.8 mAh g −1 is achieved after 400 cycles. The superior Li storage feature of Bi2 Se3 @NC–400 hybrids is ascribed to the synergetic effect between Bi2 Se3 nanosheets and N–doped nanocarbon. Bi2 Se3 @NC–400 hybrids is a promising anode material for LIBs.