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Synthesis of single- and multi-component carbides utilizing exfoliated graphite

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Title: Synthesis of single- and multi-component carbides utilizing exfoliated graphite
Authors: Konno, Hidetaka Browse this author
Abe, Daisuke Browse this author
Habazaki, Hiroki Browse this author →KAKEN DB
Keywords: Exfoliated graphite
Metal alkoxide
Metal carbide
Multi-component carbide
Metal-carbide composite
Issue Date: 16-Jan-2006
Publisher: 炭素材料学会
Journal Title: 炭素
Journal Title(alt): Tanso
Volume: 2006
Issue: 221
Start Page: 8
End Page: 13
Publisher DOI: 10.7209/tanso.2006.8
Abstract: Different metal alkoxides were impregnated into exfoliated graphite (EG) by sorption and hydrolyzed with steam. Thus formed precursors were pyrolyzed at 1500-1700°C for 1-10h in argon to form single- and multi-component carbides, such as ZrC, TiC, (Ti, Zr) C solid solutions, TiC-ZrC composites, and TiC-Fe composites. In this process, hydrolyzed metal alkoxides were converted mainly to oxides and/or oxyhydroxides on the surface of graphite sheet composing EG, and eventually they are reduced to carbide or metal by graphite carbon at elevated temperatures. The small reaction spaces in EG produce fine metal carbide particles only by the pyrolysis. The process is simple and low cost, and possible to be developed to synthesize other carbides and composites.
Rights: 著作権は炭素材料学会にある。利用は著作権の範囲内に限られる
Type: article
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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