%0 Journal Article
%T electrochemicalcharacterizationofni-coandni-co-feforoxidationofmethylalcoholfuelwithhighenergeticcatalyticsurface
%A subir
%A paul
%A sk
%A naimuddin
%A asmita
%A ghosh
%J 燃料化学学报
%P 87-95
%D 2014
%X ？nonptbasedmetalsandalloysaselectrodematerialsformethylalcoholfuelcellshavebeeninvestigatedwithanaimoffindinghighelectrocatalyticsurfacepropertyforthefasterelectrodereactions.electrodeswerefabricatedbyelectrodepositiononpurealfoil,fromanelectrolyteofni,co,fesalts.theoptimumconditionofelectrodepositionwerefoundoutbyaseriesofexperiments,varyingthechemistryoftheelectrolyte,phvalve,temperature,currentandcellpotential.polarizationstudyofthecoatedni-coorni-co-fealloyonpurealwasfoundtoexhibithighexchangecurrentdensity,indicatinganimprovedelectrocatalyticsurfacewithfastercharge-dischargereactionsatanodeandcathodeandlowovervoltage.electrochemicalimpedancestudiesoncoatedanduncoatedsurfaceclearlyshowedthatthepolarizationresistanceandimpedanceweredecreasedbyni-coorni-co-fecoating.x-raydiffraction(xrd),energydispersivex-rayspectroscopy(edx)andatomicabsorptionspectroscopy(aas)studiesconfirmedthepresenceofalloyingelementsandconstituentsofthealloy.themorphologyofthedepositsfromscanningelectronmicroscope(sem)imagesindicatedthattheelectrodesurfacewasathreedimensionalspacewhichincreasedtheeffectivesurfaceareafortheelectrodereactionstotakeplace.
%K electrodeposition
%K ni-coalloy
%K electrocatalytic
%K exchangecurrentdensity
%K impedance
%K x-raydiffraction(xrd)
%K scanningelectronmicroscope(sem)
%U http://rlhxxb.sxicc.ac.cn/CN/abstract/abstract18339.shtml