Journal of the Korean Electrochemical Society (전기화학회지)

The Korean Electrochemical Society (한국전기화학회)
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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)
  • Received : 2014.03.10
  • Accepted : 2014.07.17
  • Published : 2014.08.31
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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.

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References

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