Synthesis of polyaniline/TiO₂ hybrid nanoplates via a sol-gel chemical method

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• 作者：Akash Katoch^a ; Markus Burkhart^b ; Taejin Hwang^b ; Sang Sub Kim^a ; ^{sangsub@inha.ac.kr}
• 关键词：Polyaniline ; TiO2 ; Nanocrystalline ; Sol&ndash ; gel ; Hybrid
• 刊名：Chemical Engineering Journal
• 出版年：2012
• 期刊代码：16_13858947
• 类别：ce
• 出版时间：1 June, 2012
• 卷：192
• 期：Complete
• 页码：262-268
• 文件大小：1530 K

摘要

Polyaniline/TiO₂ hybrid nanoplates were synthesized via a sol-gel chemical method. We added TiO₂ nanocrystallites of 3-5 nm in diameter to the chemical polymerization of aniline. The loading ratio of TiO₂ nanocrystallites to polyaniline altered the morphology of the hybrids from plate-like grains to aggregates. The cyclic voltammetry on the obtained hybrid material revealed that the plate-like structure was more advantageous for the electrochemical stability. The chemical bonding established between polyaniline and TiO₂, confirmed by Fourier transformed infrared spectroscopy, is likely to be responsible for the enhanced chemical stability.