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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 27, Number 11
BKCSDE 27(11)
November 20, 2006

Title	Conducting Properties of Polypyrrole Coated Imogolite
Author	Yunha Lee, Bumjoong Kim, Whikun Yi, Atsushi Takahara, Daewon Sohn*
Keywords	Imogolite, Polypyrrole, Conducting polymer, Nano tube
Abstract	Imogolite which has chemical composition, (HO)₃Al₂O₃SiOH, was synthesized with orthosilicate acid and aluminium chloride at low pH solution. It has extremely large aspect ratio with an external diameter of 2nm and the length of a few micrometers. The high aspect ratio of the imogolite could make the material as the filler for the high strength fiber and as the wire for the electronic applications. Here, Imogolite that derives considerable microporosity from a nanometer-sized tubular structure has been modified with a conducting polymer, polypyrrole. Its bonding and wiring structure were confirmed by IR and TEM. The measured conductivity after modification with polypyrrole increased with polypyrrole thickness at various voltage conditions.
Page	1815 - 1818
Full Text	PDF

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