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Catalysis Science & Technology Vol - 2 Issue - 9

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Catalysis Science & Technology Vol - 2 Issue - 2

Catalysis Science & Technology Vol -1

Electro-oxidation of formic acid using polyindole-SnO₂ nanocomposite

Content Provider	Royal Society of Chemistry (RSC)
Author	Prakash, Rajiv Pandey, Avinash C. Kumar, Ashish
Copyright Year	2012
Abstract	We report a chemical oxidative method for polyindole-tinoxide (Pin–SnO2) synthesis and its electro-catalytic application. Our method consists of chemical polymerization of an indole monomer in the presence of dispersed nano SnO2 at two different pHs i.e. below and above the isoelectric point of the SnO2. Nano SnO2 with crystallite sizes of nearly 5.0 nm are prepared by precipitation technique. For the sake of comparison, pristine polyindole is also synthesized by the same chemical method. These materials are characterized by XRD, FTIR and TEM. Characterization confirms the presence of nano SnO2 particles in a Pin matrix and the effect of pH on the formation of a uniform nanocomposite and the extent of interaction of fillers and matrix. The electro-catalytic properties of the Pin–SnO2 nanocomposite are investigated for formic acid oxidation using the voltammetric technique. This shows excellent synergic effect for electro-catalytic activity of the low doped Pin–SnO2 nanocomposite (Pin–SnO2 nanocomposite formed at higher pH). This composite is well suited for CO tolerance during the oxidation of formic acid in acidic medium and follows a direct pathway to convert it into CO2.
Starting Page	2533
Ending Page	2538
Page Count	6
File Format	HTM / HTML PDF
ISSN	20444753
Volume Number	2
Issue Number	12
Journal	Catalysis Science & Technology
DOI	10.1039/c2cy20382k
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	X-ray crystallography Acid Transmission electron microscopy Isoelectric point FTIR Indole Polymerization Crystallite PH Nanocomposite Monomer Composite material
Content Type	Text
Resource Type	Article
Subject	Catalysis

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Electro-oxidation of formic acid using polyindole-SnO₂ nanocomposite