Metal−organic framework derived porous hollow ternary sulfide as robust anode material for sodium ion batteries. (June 2019)

• Record Type: Journal Article
• Authors: Cao, Dongwei; Fan, Weidong; Kang, Wenpei; Wang, Yuyu; Sun, Kaian; Zhao, Jinchong; Xiao, Zhenyu; Sun, Daofeng
• Is Part Of: Materials today energy. Volume 12(2019)
• Page Start: 53
• Page End: 61
• Publication Date: 2019-06
• Subjects: Multicomponent sulfide -- Long-term cycling performance -- Metal-organic frameworks -- Sodium-ion battery; Energy development -- Periodicals; Energy industries -- Periodicals; Power resources -- Periodicals; Energy policy -- Periodicals; Energy development; Energy industries; Energy policy; Power resources; Electronic journals; Periodicals; 621.042
• DOI: 10.1016/j.mtener.2018.12.013
• Languages: English
• ISSNs: 2468-6069

Abstract

Abstract: Multiple-metal compound materials have been demonstrated as high performance anode materials for energy storage. In this work, porous hollow polyhedron structured multicomponent sulfides and N -doped carbon-based composite (MnS-(ZnCo)S/N-C) is prepared through a gas-solid reaction using Mn, Zn, Co-based ternary metal−organic frameworks as precursor. As sodium ion batteries anode, MnS-(ZnCo)S/N-C exhibits impressive electrochemical performance, especially for the cycling performance at high current. At a current density of 2.0 A g −1, it delivers a capacity of 316 mAh g −1 within 400 cycles and a high capacity retention (92.9%) compared with that of the third cycle. Furthermore, the composite electrode maintains a capacity retention of 40% when the current raises from 0.1 to 10.0 A g −1 step by step. As a robust sodium storage host, this composite anode benefits from porous hollow polyhedron structures composed of primary nanoparticles, N doped C coating on primary particles, and multicomponent sulfides. Graphical abstract: Image 1 Highlights: Mn, Zn, Co-based ternary metal−organic frameworks was used as precursor. Porous hollow MnS-(ZnCo)S/N-C polyhedrons were prepared through a gas-solid reaction. MnS-(ZnCo)S/N-C anode shows high and stable capacities for sodium ion batteries. in-situ N -doped carbon coating and hollow structure enhanced the cycling performance. Multicomponent sulfides take synergistic effects on the electrochemical performance.