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http://dx.doi.org/10.5229/JKES.2014.17.3.179

Physioelectrochemical Investigation of Electrocatalytic Activity of Modified Carbon Paste Electrode in Alcohol Oxidation as Anode in Fuel Cell  

Shabani-Shayeh, Javad (Department of Chemistry, Faculty of science, K. N. Toosi University of Technology)
Ehsani, Ali (Department of Chemistry, Faculty of science, University of Qom)
Jafarian, Majid (Department of Chemistry, Faculty of science, K. N. Toosi University of Technology)
Publication Information
Journal of the Korean Electrochemical Society / v.17, no.3, 2014 , pp. 179-186 More about this Journal
Abstract
Methanol electro oxidation on the surface of carbon paste modified by $NiCl_2/6H_2O$ was studied in 1M NaOH by potentiostatic and potentiodynamic methods. Ni/C catalyst by the concentration of 5% Ni showed about twice higher electro catalytic activity than Ni metal. The amount of monolayer's on the surface of electrode is almost one order higher for Ni/C than Ni electrode. The kinetic parameters and the diffusion coefficient of methanol were derived from chronoamperometry (CA) and electrochemical impedance spectroscopy (EIS) measurements.
Keywords
Methanol electro-oxidation; carbon paste; impedance; modified electrode;
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