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Research Papers

Electrocatalytic Oxidation of Ethanol at Pd/PANI Electrocatalyst

[+] Author and Article Information
M. A. Ibrahim

Department of Chemistry,
Faculty of Science,
University of Tabuk,
Tabuk 47324, Saudi Arabia;
Department of Chemistry,
Faculty of Education in El-Arish,
Suez Canal University,
North Sinai, Egypt
e-mail: science1712@gmail.com

Contributed by the Advanced Energy Systems Division of ASME for publication in the JOURNAL OF FUEL CELL SCIENCE AND TECHNOLOGY. Manuscript received May 1, 2013; final manuscript received October 20, 2013; published online December 5, 2013. Editor: Nigel M. Sammes.

J. Fuel Cell Sci. Technol 11(2), 021008 (Dec 05, 2013) (3 pages) Paper No: FC-13-1041; doi: 10.1115/1.4025925 History: Received May 01, 2013; Revised October 20, 2013

Palladium Pd/polyaniline (PANI) nanocomposite was prepared by a thermal reflux method as the catalyst for direct ethanol fuel cells. The Pd/PANI catalysts were characterized by using FTIR transmission electron microscopy techniques. The electrocatalytic performances of Pd/PANI catalysts for ethanol oxidation were studied by cyclic voltammetric measurement. It was found that, compared with Pd, the Pd/PANI catalyst showed superior electrocatalytic activity for ethanol oxidation when the mass ratio of Pd precursor salt to PANI was about 1:2.

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Figures

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Fig. 3

Cyclic voltammogram of Pd and Pd/PANI nanocomposite catalysts in 0.1 M NaOH + 0.5 M C2H5OH. Scan rate 50 mV s−1.

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Fig. 4

Variation of current density for ethanol oxidation with a Pd/PANI catalyst having a Pd-to-PANI mass ratio of without PANI, 1:3, 1:2, and 1:1

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Fig. 2

FTIR spectra of nanocomposite Pd/PANI

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Fig. 1

TEM of nanocomposite Pd/PANI

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