Add time:07/22/2019         Source:sciencedirect.com

In this work, a “Co2+ doping” new strategy is proposed to promote the high rate performance and extend the cycling life of nickel-based sulfides. The Co2+ doped Ni3S4 nanosheets are prepared at mild conditions by a scalable method of solid-state reaction. The preparation of doped sulfide includes two steps: 1) formation of amorphous Co2+ doped NICKEL SULFIDE (cas 11113-75-0) nanosheets by grinding the mixture of raw materials at room temperature in a mortar; 2) crystallization to Co2+ doped Ni3S4 nanosheets at 150 °C for 5 h. Due to the doped Co2+ ions, the as-prepared sulfide presents promoted high rate performance and prolonged cycling life. It should be pointed out that the “Co2+ doping” strategy for the electrochemical stabilization of nickel-based sulfides could be easily scaled up due to the large-scale preparation characteristics and high performance of produced material.

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