Growth of Pt Clusters from Mixture Film of Pt–C and Dynamics of Pt Clusters
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概要
- 論文の詳細を見る
A complete mixture film of carbon and platinum produced by coevaporation in a vacuum was directly heated in a transmission electron microscope. It was found that the diffusion and crystal growth of Pt clusters in the mixture film take place at approximately 500 °C. Pt clusters with a size of 2–5 nm were connected with each other in a parallel orientation or twin-crystal configuration in the mixture film. The growth of onion-like carbon with a hole at the center also occurred. The grown Pt clusters with twin-crystal structures appeared on and in the carbon film. The diffusion of Pt atoms in carbon was discussed as the problem of elusion in fuel cells. Direct observation of the movement of Pt clusters on and in the carbon film was carried out. The movement difference of Pt clusters in and on carbon film has been directly presented.
- 2007-06-15
著者
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Kumamoto Akihito
Department Of Physics Fuel Cell Center Ritsumeikan University
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Shintaku Masayuki
Department Of Nanophysics In Frontier Projects Ritsumeikan University
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Kaito Chihiro
Department Of Electronics And Information Science Kyoto Institute Of Technology
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Suzuki Hitoshi
Department Of Animal Science Faculty Of Agriculture Tohoku University
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Suzuki Hitoshi
Department of Electronic Engineering, Faculty of Engineering, Tohoku Gakuin University, Tagajo, Miyagi 985-8537, Japan
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Shintaku Masayuki
Department of Nanophysics in Frontier Project, Ritsumeikan University, Kusatsu, Shiga 525-8577, Japan
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Shintaku Masayuki
Department of Nanophysics in Frontier Project, Ritsumeikan University, 1-1-1 Nojihigashi, Kusatsu, Shiga 525-8577, Japan
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Kaito Chihiro
Department of Nanophysics in Frontier Project, Ritsumeikan University, Kusatsu, Shiga 525-8577, Japan
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Kumamoto Akihito
Department of Nanophysics in Frontier Project, Ritsumeikan University, Kusatsu, Shiga 525-8577, Japan
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