Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 11, Issue 44, Pages 41222-41228Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.9b11078
Keywords
composite hollow spheres; sodium ion batteries; nickel sulfides; molybdenum sulfides; nanosheets
Funding
- National Key Research and Development Program of China [2017YFA0204600]
- National Natural Science Foundation of China [51721002, 51673045]
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Development of high performance electrode materials for sodium-ion batteries has been given a lot of attention in recent years but challenges remain. Herein, we have successfully synthesized the first NiS/MoS2/C composite hollow spheres (NMSCHSs) via a facile hard template method combined with calcined sulfidation process. Owing to its unique hierarchical nanostructure with NiS nanoparticles embedded in shell wrapped with MoS2 nanosheets, the NMSCHS-based anode electrodes exhibit superior rate capability and cycling stability, with a specific discharge capacity of 516 mAh g(-1) and 98.5% retention after 60 cycles at a current density of 0.1 A g(-1) and a discharge capacity of 398 mAh g(-1) even at 5 A g(-1).
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