Organic-inorganic hybrid materials based on polyaniline/TiO2 nanocomposites for ascorbic acid fuel cell systems

被引：57

作者：

Ganesan, Raman ^{[1
]}

Gedanken, Aharon ^{[1
]}

机构：

[1] Bar Ilan Univ, Inst Nanotechnol & Adv Mat, Kanbar Lab Nanomat, Dept Chem, IL-52900 Ramat Gan, Israel

来源：

NANOTECHNOLOGY | 2008年 / 19卷 / 43期

关键词：

D O I：

10.1088/0957-4484/19/43/435709

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Polyaniline was grafted onto a mixture of rutile and anatase TiO2 nanoparticles by in situ chemical oxidative polymerization. These nanocomposites were characterized by carbon, hydrogen and nitrogen (CHN) analysis, x-ray diffraction (XRD), Fourier transform infrared (FTIR), ultraviolet-visible (UV-vis), scanning electron microscopy (SEM) and transmission electron microscopy (TEM) analysis. FTIR and UV-vis confirm the formation of polyaniline on TiO2 nanoparticles. The TEM shows that the composites consist of PANI and TiO2 nanoparticles. Compared to the neat polyaniline, PANI/TiO2 composites show a higher capacitance and also a higher activity per mass of polyaniline. Since the PANI/TiO2 composites are stable during the electrooxidation of ascorbic acid, they can be used as an alternative catalyst for direct ascorbic acid fuel cells.

引用

页数：5

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