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Structure of the carbon nanofilaments formed by liquid phase carbonization in porous anodic alumina template

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Title: Structure of the carbon nanofilaments formed by liquid phase carbonization in porous anodic alumina template
Authors: Habazaki, H. Browse this author →KAKEN DB
Kiriu, M. Browse this author
Hayashi, M. Browse this author
Konno, H. Browse this author
Keywords: Nanostructures
Heat treatment
Electron microscopy
Crystal structure
Issue Date: 15-Oct-2007
Publisher: Elsevier B.V.
Journal Title: Materials Chemistry and Physics
Volume: 105
Issue: 2-3
Start Page: 367
End Page: 372
Publisher DOI: 10.1016/j.matchemphys.2007.04.074
Abstract: Platelet structure carbon nanofilaments of ~30 nm in diameter have been prepared by heating a mixture of porous anodic alumina template and poly(vinyl)chloride (PVC) powders in an argon atmosphere, and the change in their structure and morphology with heat treatment temperature, ranging from 600 to 2800 °C, has been examined using X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and nitrogen gas adsorption measurements. The diameter of the carbon nanofilaments formed does not change with heat treatment temperature, being in agreement with the pore diameter of the template, while their length is reduced with the temperature. The platelet-type orientation of graphene layers is evident even at 600 °C with the layer structure further developing with increasing heat treatment temperature. The carbon nanofilaments formed at lower temperatures have micropores, while those formed at higher temperatures do not have porosity. Highly graphitized carbon nanofilaments have been obtained after heat treatment at 2800 °C, with another characteristic structural feature being presence of loops at the edge of graphene layers formed at 2800 °C.
Type: article (author version)
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 幅崎 浩樹

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