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Core-shell nanostructure supported Pt catalyst with improved electrocatalytic stability in oxygen reduction reaction
- Issue Date
- 15-Jan-2013
- Publisher
- ELSEVIER SCIENCE SA
- Keywords
- Composite materials; Nanostructures; Electrochemical properties; Electrochemical techniques
- Citation
- MATERIALS CHEMISTRY AND PHYSICS, v.137, no.3, pp.704 - 708
- Journal Title
- MATERIALS CHEMISTRY AND PHYSICS
- Volume
- 137
- Number
- 3
- Start Page
- 704
- End Page
- 708
- ISSN
- 0254-0584
- Abstract
- Core-shell nanostructure electrode (TiO2@C) for oxygen reduction reaction is prepared with TiO2 nanoparticles at 900 degrees C in a methane atmosphere. The TiO2@C supported Pt catalyst (Pt/TiO2@C) contains Pt nanoparticles on TiO2@C nanostructure electrodes consisting of TiO2 as a core and carbon as a shell. In the accelerated stability test, the Pt/TiO2@C exhibits a superior ORR stability to conventional carbon supported Pt catalyst. It is likely that the enhanced catalytic properties of the nanostructure supported Pt catalyst may be due to graphite-like carbon and an improved electronic conductivity of the core shell nanostructure. (C) 2012 Elsevier B.V. All rights reserved.
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Related Researcher
- PARK, KYUNG WON
- College of Engineering (Department of Chemical)