期刊
CURRENT APPLIED PHYSICS
卷 18, 期 11, 页码 1399-1402出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cap.2018.08.004
关键词
Electrochemical supercapacitor; Co3O4; Physical vapor deposition; Nanorods; Thin films
资金
- Korea Institute of Energy Technology Evaluation and Planning (KETEP)
- Ministry of Trade, Industry and Energy (MOTIE) of the Republic of Korea [20174030201520]
- Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education [2017R1D1A1A09000823]
- Dongguk University
Nanorod films of cobalt oxide (Co3O4) have been grown by a unique oblique angle deposition (OAD) technique in an e-beam evaporator for supercapacitor electrode applications. This technique offers a non-chemical route to achieve large aspect ratio nanorods. The fabricated electrodes at OAD 80 degrees exhibited a specific capacitance of 2875 F/g. The electrochemically active surface area was 1397 cm(-2), estimated from the non-Faradaic capacitive current region. Peak energy and power densities obtained for Co3O4 nanorods were 57.7 Wh/Kg and 9.5 kW/kg, respectively. The Co3O4 nanorod electrode showed a good endurance of 2000 charge-discharge cycles with 62% retention. The OAD approach for fabricating supercapacitor nanostructured electrodes can be exploited for the fabrication of a broad range of metal oxide materials.
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