Controlling the nanostructure of RuO2/carbon nanotubes composites by using gas-annealing
- Title
- Controlling the nanostructure of RuO2/carbon nanotubes composites by using gas-annealing
- Author
- 강보수
- Keywords
- ruthenium compounds; carbon nanotubes; nanocomposites; thin films; amorphous state; MOCVD; annealing; surface diffusion; self-diffusion; nanotechnology
- Issue Date
- 2005-01
- Publisher
- ELECTROCHEMICAL SOC INC
- Citation
- JOURNAL OF THE ELECTROCHEMICAL SOCIETY, v. 152, No. 2, Page. D23-D25
- Abstract
- We fabricated RuO2/carbon nanotube (CNT) composites by coating the CNTs with an amorphous RuOx layer using metallorganic chemical vapor deposition followed by postannealing at a relatively low temperature of 350degreesC. It was found that the kind of gas used during the postannealing process should affect the nanostructure of the RuO2/CNT composites quite significantly. Starting with a thin RuOx, coating layer, we could obtain relatively uniform-sized spherical and elliptical RuO2 nanoparticles by using Ar and O-2 gas, respectively, during the postannealing. The growth behaviors of the RuO2 nanoparticles could be explained in terms of surface self-diffusion. The surface diffusion process can provides a way to fabricate RuO2/CNT nanocomposites with a controllable geometrical shape and size, whose process can be used for diverse applications, such as high-performance supercapacitor electrodes, electrocatalysts, gas sensors, and new electrodevices. (C) 2004 The Electrochemical Society. All rights reserved.
- URI
- http://jes.ecsdl.org/content/152/2/D23.shorthttps://repository.hanyang.ac.kr/handle/20.500.11754/110145
- ISSN
- 0013-4651; 1945-7111
- DOI
- 10.1149/1.1847672
- Appears in Collections:
- COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY[E](과학기술융합대학) > APPLIED PHYSICS(응용물리학과) > Articles
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