Qingdao Industrial Energy Storage Research Institute, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences , Qingdao 266101, P. R. China.
University of Chinese Academy of Sciences , Beijing 100049, P. R. China.
ACS Appl Mater Interfaces. 2015 Dec 9;7(48):26396-9. doi: 10.1021/acsami.5b09728. Epub 2015 Nov 30.
Self-supported Ni3S2 ultrathin nanosheets were in situ formed by direct sulfurization of commercially available nickel foam using thioacetamide as sulfur source under hydrothermal process. The morphology and structure of the as-obtained sample were analyzed by using XRD, XPS, SEM, and TEM, revealing that an ultrathin nanosheets Ni3S2 were grown on the surface of Ni form. The as-obtained Ni3S2/Ni composite with uniform architecture was used as cathode material for alkaline Ni/Zn battery, which delivered high capacity of 125 mAh g(-1) after 100 cycles with no obvious capacity fading, extraordinary rate capability (68 mAh g(-1) at the current density of 5.0 A g(-1)), and high operating voltage (1.75 V).
自支撑的 Ni3S2 超薄纳米片是通过在水热条件下，以商业可用的镍泡沫为基体，硫代乙酰胺为硫源，直接硫化原位生成的。采用 XRD、XPS、SEM 和 TEM 对所得到的样品的形貌和结构进行了分析，结果表明，超薄纳米片 Ni3S2 生长在 Ni 基体的表面。所得到的具有均匀结构的 Ni3S2/Ni 复合材料作为碱性 Ni/Zn 电池的阴极材料，在 100 次循环后具有 125 mAh g(-1) 的高容量，没有明显的容量衰减，具有非凡的倍率性能（在 5.0 A g(-1)的电流密度下为 68 mAh g(-1)），以及较高的工作电压（1.75 V）。
