期刊
ELECTROCHEMISTRY COMMUNICATIONS
卷 9, 期 2, 页码 239-244出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2006.09.001
关键词
supercapacitors; direct growth; well-aligned carbon nanotubes; RuO2 nanoparticles; arrayed nanocomposites
Significant enhancement in supercapacitor performance has been achieved via a new RUO2 nanocomposite materials prepared by direct ruthenium sputtering on arrayed multi-walled carbon nanotubes supported by Ti-buffered Si wafer. XPS, HRTEM and SAED analyses reveal that as-prepared nanoparticles have a crystalline Ru metal core with RUO2 oxide coating. The nanocomposites convert to RuO2-CNx NTs with subsequent electrochemical cycling. At present, well-dispersed and strongly adhered RuO2 NPs have been densely populated on CNx NTs to obtain the overall specific capacitance (1380 F/g-RuO2) charging-discharging rate (up to 600 mV/s) and operation stability (5000 cycles). Thus, RuO2-CNx NTs nanocomposites would make a promising candidate for use in next-generation high efficiency miniaturized supercapacitors directly fabricated on Si substrate. (c) 2006 Elsevier B.V. All rights reserved.
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