Biotemplate synthesis of mesoporous α-Fe2O3 hierarchical structure with assisted pseudocapacitive as an anode for long-life lithium ion batteries. Issue 3 (1st February 2021)

• Record Type: Journal Article
• Authors: Xu, Gang; Wang, Guo-Yan; Zhang, Xian-Fa; Deng, Zhao-Peng; Huo, Li-Hua; Gao, Shan
• Is Part Of: Ceramics international. Volume 47:Issue 3(2021)
• Page Start: 3772
• Page End: 3779
• Publication Date: 2021-02-01
• Subjects: α-Fe2O3 -- Biomass template -- Poplar branch -- Mesoporous structure -- Anode material; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2020.09.234
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: The oriented biotemplate synthesis of nanostructured metal oxides as anode materials for lithium-ion batteries (LIBs) has recently attracted widespread attentions. Herein, mesoporous α-Fe2 O3 hierarchical tubes (named as Fe-400) were successfully prepared by facile iron salt impregnation and air calcination at 400 °C using waste poplar branch as biotemplate. The hierarchical structure of Fe-400 is constructed from cross-linked small nanoparticles (~29 nm), which then results in large specific surface area (37.7 m 2 g −1 ) and uniform mesoporous size distribution (12.2 nm). As anode material for LIBs, Fe-400 displays reversible capacity of 880.7 mA h g −1 after long-cycle of 800 th at 1 A g −1, indicating that this material has high capacity retention and good long-cycle stability. The prominent electrochemical properties are mainly ascribed to the large specific surface area, unique homogeneous mesopores, and the assisted pseudocapacitive behaviors of Fe-400. In view of the low-cost, environment-friendly and easily large-scale synthesis of Fe-400 electrode material, the present biotemplate strategy can present useful reference for the synthesis of other transition metal oxide-based anode materials for LIBs. Graphical abstract: Image 1