期刊
JOURNAL OF ENERGY STORAGE
卷 39, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.est.2021.102637
关键词
NiS; NiS/RGO; Solution combustion synthesis; Electrochemical properties
Nickel sulfide/reduced graphene oxide composite powders were prepared by solution combustion method, with the phase, structure, and microstructure being tuned by the type and amount of fuels used. Increasing glycine as an auxiliary fuel led to the appearance of bulky microstructures in the sintered particles, resulting in high specific capacitance and excellent capacity retention after 3000 cycles.
Nickel sulfide/reduced graphene oxide composite powders were prepared by solution combustion method using nickel nitrate and graphene oxide as oxidants together with thioacetamide, either alone or admixed with glycine, as fuel. Graphene oxide was in-situ reduced during combustion process. Phase, structure, and microstructure of the combusted powders were tuned by proper use of the type and amount of fuels. With the increase of glycine as an auxiliary fuel, bulky microstructures of sintered particles were appeared. The nickel sulfide/reduced graphene oxide composite powders showed the pseudocapacitive behavior with a high specific capacitance of 305 F g(-1) at a current density of 1.1 A g(-1). The high conductivity of reduced graphene oxide and distribution of nickel sulfide nanoparticles on reduced graphene oxide sheets led to the high capacity retention of 91% after 3000 cycles.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据