In Situ Study of Fe/ITO Catalysts for Carbon Nanocoil Growth By X-Ray Diffraction Analysis
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概要
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We have investigated the structural change of catalysts of iron-coated indium–tin–oxide films during the chemical vapor deposition (CVD) of carbon tubule nanocoils by in situ measurement of X-ray diffraction. It was found that heating the catalysts to a CVD temperature of 700°C in He atmosphere induces the oxidation of iron and forms nanoparticles with a diameter of several tens of nanometers, containing nanocrystals of indium oxide and iron oxide. At the initial stage of CVD using acetylene, the catalyst particles start to be deoxidized and then absorb carbon atoms to form crystalline iron–indium–tin–carbide compounds. The carbon nanocoils are grown from these compounds.
- INSTITUTE OF PURE AND APPLIED PHYSICSの論文
- 2004-08-15
著者
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Pan Lujun
Department Of Physics And Electronics Osaka Prefecture University
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Nakayama Yoshikazu
Department Of Electrical Engineering College Of Engineering University Of Osaka
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Nishimura Kenji
Department Of Biology Keio University School Of Medicine
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Nishimura Kenji
Department of Physics and Electronics, Osaka Prefecture University, 1-1 Gakuen-cho, Sakai, Osaka 599-8531, Japan
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