期刊
MATERIALS LETTERS
卷 60, 期 20, 页码 2453-2456出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2006.01.015
关键词
ruthenium; nanoparticles; nanocomposites; polyol process; electrochemical supercapacitors
The Ru/C nanocomposites with Ru loadings of 20 similar to 60 wt.% were prepared by the polyol process in the presence of XC-72 carbon. TEM observations indicated that Ru nanoparticles were uniform with the average size of about 3.1 similar to 3.5 nm, and highly dispersed on the carbon surface. After electrochemically oxidization from Ru nanoparticles to the pseudocapacitive oxide-hydroxide form, the specific capacitances of these composites were calculated by cyclic voltammetry. It was found that these composites exhibited much higher specific capacitances in comparison with the XC-72 carbon. (c) 2006 Elsevier B.V. All rights reserved.
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