Zou Xu, Sun Qing, Zhang Yuxin, Li Guo-Dong, Liu Yipu, Wu Yuanyuan, Yang Lan, Zou Xiaoxin
State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun, 130012, P. R. China.
State Key Laboratory of Mechanical Transmissions, College of Material Science and Engineering, Chongqing University, Chongqing, 400044, P. R. China.
Sci Rep. 2018 Mar 14;8(1):4478. doi: 10.1038/s41598-018-22448-w.
Amorphous Ni-Mn bimetallic hydroxide film on the three-dimensional nickle foam (NF)-supported conductive NiS nanosheets (denoted as Ni-Mn-OH@NiS/NF) is successfully synthesized by an ultrafast process (5 s). The fascinating structural characteristic endows Ni-Mn-OH@NiS/NF electrodes better electrochemical performance. The specific capacitance of 2233.3 F g at a current density of 15 A g can achieve high current density charge and discharge at 20/30 A g that the corresponding capacitance is 1529.16 and 1350 F g, respectively. As well as good cycling performance after 1000 cycles can maintain 72% at 15 A g. The excellent performance can be attributed to unique surface modification nanostructures and the synergistic effect of the bimetallic hydroxide film. The impressive results provide new opportunity to produce advanced electrode materials by simple and green route and this material is expected to apply in high energy density storage systems.
通过超快工艺（5秒）成功合成了三维泡沫镍（NF）负载的导电NiS纳米片上的非晶态Ni-Mn双金属氢氧化物薄膜（表示为Ni-Mn-OH@NiS/NF）。这种引人入胜的结构特性赋予了Ni-Mn-OH@NiS/NF电极更好的电化学性能。在电流密度为15 A g时，比电容为2233.3 F g，在20/30 A g的高电流密度下充放电时，相应的电容分别为1529.16和1350 F g。此外，在15 A g下经过1000次循环后具有良好的循环性能，可保持72%。优异的性能可归因于独特的表面修饰纳米结构和双金属氢氧化物薄膜的协同效应。这些令人印象深刻的结果为通过简单绿色的途径生产先进电极材料提供了新机会，并且这种材料有望应用于高能量密度存储系统。
