Conducting properties of polypyrrole coated imogolite

Yunha Lee, Bumjoong Kim, Whikun Yi, Atsushi Takahara, Daewon Sohn

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)


Imogolite which has chemical composition, (HO)3Al 2O3SiOH, 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.

Original languageEnglish
Pages (from-to)1815-1818
Number of pages4
JournalBulletin of the Korean Chemical Society
Issue number11
Publication statusPublished - Nov 20 2006

All Science Journal Classification (ASJC) codes

  • General Chemistry


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