Metal-Organic Frameworks derived novel hierarchical durian-like nickel sulfide (NiS2) as an anode material for high-performance sodium-ion batteries

TitleMetal-Organic Frameworks derived novel hierarchical durian-like nickel sulfide (NiS2) as an anode material for high-performance sodium-ion batteries
Publication TypeJournal Article
Year of Publication2017
AuthorsK.J. Zhu, Gao Liu, Y.J Wang, J Liu, S.T. Li, L.Y. Yang, S.L. Liu, H. Wang, T. Xie
JournalMaterials Letters
Volume197
Pagination180 - 183
Date Published01/2017
ISSN0167577X
Abstract

An anode material for sodium-ion batteries, Ni-Metal-Organic Frameworks (MOFs)-derived nickel sulfide (NiS2), is first reported. The synthesis strategy involves a novel method in which Ni-based MOFs is fabricated as precursor and then sulfured by sublimed sulfur in solid phase reaction. The as synthesized Ni-MOFs-derived NiS2 shows a hierarchical durian-like nanostructure made of nanoparticles with the diameter of around 10 nm and amorphous carbon with 3 dimensional conductive net skeleton. Moreover, due to the novel hierarchical nanostructure, sodium ions are able to easily insert/extract into/from the active material. As a result, the as synthesized Ni-MOF-derived NiS2 nanostructure electrode exhibits high specific capacity and excellent rate performance. We believe that the hierarchical Ni-MOFs-derived NiS2 nanoparticles will be one of the most promising electrode materials for sodium-ion batteries.

DOI10.1016/j.matlet.2017.03.087
Short TitleMaterials Letters
Refereed DesignationRefereed