期刊
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
卷 107, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.mssp.2019.104799
关键词
Co1-xNixS electrodes; SEM; KPFM; Supercapacitor; Cyclic voltammetry; Stability
类别
资金
- Postdoctoral Research Program of Sungkyunkwan University
In the present work, we demonstrate the synthesis of Co1-xNixS (0 <= x <= 0.2) metal chalcogenide thin films via a simple, inexpensive solution growth process and its subsequent studies aiming towards supercapacitive application. The as-prepared Co1-xNixS thin films revealed microstructure similar to spirulina algae-like nanowires with uniform substrate coverage. The highest average, total roughness and particle height values were observed from atomic force microscopy measurement for x = 0.05 composition. The electrochemical measurements on thin-film electrodes have been done via cyclic voltammetry, galvanostatic charge-discharge studies, and electrochemical impedance spectroscopy. The as-grown Co1-xNixS (x = 0.05) thin-film electrodes demonstrated a reversible electrochemical feature, offers a high specific capacitance of 880 F g(-1) at 6 mA cm(-2) current density and cycling stability of 79% after 5000 cycles. This performance of Co1-xNixS electrodes at x = 0.05 was credited to its porous and large accessible area of entangled nanowire structure and effective intercalation of electrolyte ions through the electrode. This report opens new opportunities for the development of the metal chalcogenide thin films for high capacity electrochemical devices.
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