当前位置: X-MOL 学术J. Colloid Interface Sci. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Fabrication of hierarchical MoO3@NixCo2x(OH)6x core–shell arrays on carbon cloth as enhanced-performance electrodes for asymmetric supercapacitors
Journal of Colloid and Interface Science ( IF 9.4 ) Pub Date : 2021-09-11 , DOI: 10.1016/j.jcis.2021.09.046
Fangya Qi 1 , Xiaoyi Lu 1 , Yiqian Wang 1 , Hongbo Zhang 1 , Alex Trukhanov 2 , Zhipeng Sun 1
Affiliation  

Advanced integrated electrode materials with designed core–shell nanostructure play a crucial role for the application in alternative energy storage system. Herein, hierarchical MoO3@NixCo2x(OH)6x core–shell arrays were equably grown on face of carbon cloth after a series of hydrothermal growth and electrochemical deposition processes. This core–shell arrays structure can not only provide large electroactive surface areas and high speed ion transport paths, but also keep the material structure stable during the process of redox reactions. Thus MoO3@NixCo2x(OH)6x displays excellent electrochemical performance (4.7 F cm−2 at 10 mA cm−2). Moreover, the asymmetric supercapacitor is assembled with MoO3@NixCo2x(OH)6x and carbon nanotubes, which delivers a maximal energy density of 0.50 mWh cm−2 at 4.25 mW cm−2, high specific capacitance and superior cycling stability (94.5% capacitance retention after 5000 cycles). We believe that MoO3@NixCo2x(OH)6x arrays could be a great prospective candidate energy storage materials.



中文翻译:

在碳布上制备分层 MoO3@NixCo2x(OH)6x 核壳阵列作为非对称超级电容器的增强性能电极

具有设计 核壳纳米结构的先进集成电极材料 在替代能源存储系统中的应用中起着至关重要的作用。在此,经过一系列水热生长和电化学沉积过程后,分级 MoO 3 @Ni x Co 2x (OH) 6x核-壳阵列均匀地生长在碳布表面。这种核壳阵列结构不仅可以提供大的电活性表面积和高速的离子传输路径,而且可以在氧化还原反应过程中保持材料结构的稳定。因此 MoO 3 @Ni x Co 2x (OH) 6x显示出优异的电化学性能(4.7 F cm -2在 10 mA cm -2)。此外,非对称超级电容器由MoO 3 @Ni x Co 2x (OH) 6x和碳纳米管组装而成,在4.25 mW cm -2 时提供0.50 mWh cm -2的最大能量密度、高比电容和优异的循环稳定性( 5000 次循环后 94.5% 的电容保持率)。我们相信 MoO 3 @Ni x Co 2x (OH) 6x阵列可能是一种很有前景的候选储能材料。

更新日期:2021-09-27
down
wechat
bug