%0 Journal Article
%T Silvernanoparticledecoratedpoly(2-aminodiphenylamine)modifiedcarbonpasteelectrodeasasimpleandefficientelectrocatalystforoxidationofformaldehyde
%A Reza Ojani
%A Saeid Safshekan
%A Jahan-Bakhsh Raoof
%J ´ß»¯Ñ§±¨
%P 1565-1570
%D 2014
%R 10.1016/S1872-2067(14)60115-7
%X £¿Thisworkdescribesthepromisingactivityofsilvernanoparticlesonthesurfaceofapoly(2-aminodiphenylamine)modifiedcarbonpasteelectrode(CPE)towardsformaldehydeoxidation.ElectrodepositionoftheconductingpolymerfilmontheCPEwascarriedoutusingconsecutivecyclicvoltammetryinanaqueoussolutionof2-aminodiphenylamineandHCl.NitrogengroupsinthepolymerbackbonehadaAgionaccumulatingeffect,allowingAgnanoparticlestobeelectrochemicallydepositedonthesurfaceoftheelectrode.Theelectrochemicalandmorphologicalcharacteristicsofthemodifiedelectrodewereinvestigated.Theelectro-oxidationofformaldehydeonthesurfaceofelectrodewasstudiedusingcyclicvoltammetryandchronoamperometryinaqueoussolutionof0.1mol/LNaOH.Theelectro-oxidationonsetpotentialwasfoundtobearound-0.4V,whichisuniqueintheliterature.Theeffectofdifferentconcentrationsofformaldehydeontheelectrocatalyticactivityofthemodifiedelectrodewasinvestigated.Finally,thediffusioncoefficientofformaldehydeinalkalinemediawascalculatedtobe0.47¡Á10-6cm2/susingchronoamperometry.
%K Electrocatalyst
%K Silvernanoparticle
%K Formaldehyde
%K 2-Aminodiphenylamine
%K Carbonpasteelectrode
%U http://www.chxb.cn/CN/abstract/abstract21372.shtml