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

Raman Ganesan, Aharon Gedanken

Research output: Contribution to journalArticlepeer-review

65 Scopus citations

Abstract

Polyaniline was grafted onto a mixture of rutile and anatase TiO 2 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/TiO 2 composites are stable during the electrooxidation of ascorbic acid, they can be used as an alternative catalyst for direct ascorbic acid fuel cells.

Original languageEnglish
Article number435709
JournalNanotechnology
Volume19
Issue number43
DOIs
StatePublished - 22 Oct 2008

Fingerprint

Dive into the research topics of 'Organic-inorganic hybrid materials based on polyaniline/TiO2 nanocomposites for ascorbic acid fuel cell systems'. Together they form a unique fingerprint.

Cite this