شماره ركورد كنفرانس :
3256
عنوان مقاله :
Electrooxidation of Sodium Borohydride on Porous Nano Structured Ni/PtNi electrode in basic media
Author/Authors :
Mir Ghasem Hosseini Electrochemistry Research Laboratory - Department of Physical Chemistry - Chemistry Faculty - University of Tabriz , Mehdi Abdolmaleki Electrochemistry Research Laboratory - Department of Physical Chemistry - Chemistry Faculty - University of Tabriz , Iraj Ahadzadeh Electrochemistry Research Laboratory - Department of Physical Chemistry - Chemistry Faculty - University of Tabriz
كليدواژه :
Electrooxidation of borohydride , Ni/PtNi electrode , Electrocatalysis , Galvanic replacement , Direct borohydride fuel cell
عنوان كنفرانس :
ششمين سمينار پيل سوختي ايران
چكيده لاتين :
In this study, Ni/PtNi electrode prepared by electrodeposition process and galvanic replacement method was examined for electrocatalytic activities during the oxidation of sodium borohydride in alkaline solutions. The surface morphologies and compositions of coating before and after galvanic replacement were determined by energy dispersive X-ray (EDX) and scanning electron microscopy (SEM) techniques. It was found that the Ni/PtNi
coating has a porous nano structure. The electrocatalytic activity of Ni/PtNi electrodes for electrooxidation of sodium borohydride in alkaline solutions was investigated by cyclic voltammetry. Borohydride electrooxidation on Ni/PtNi electrode was studied at various concentrations and potential scan rates. The anodic peak current density was found to be up to nine times higher on Ni/PtNi electrode for sodium borohydride compared to that for fat
platinum. Therefore, the Ni/PtNi catalysts can be potential anode catalysts for the direct borohydride fuel cell
