%0 Journal Article
%T 碱性介质中(氢)氧化铜修饰电极电催化氧化蔗糖
%J 催化学报
%P 1351-1357
%D 2010
%R 10.1016/S1872-2067(10)60125-8
%X ？Astablecopper(hydr)oxide-modifiedelectrodewaspreparedin0.5mol/LNaOHsolutionbycyclicvoltammetryintherangeof-250to1？000mV.Itcanbeusedforelectrochemicalstudiesintherangeof-250to1？000mVwithoutinterferingpeaksbecausethereisnooxidationofcopper.Duringananodicpotentialsweep,theelectro-oxidationofsaccharoseonCuoccurredbytheformationofCuIIIandthisreactionalsooccurredintheearlystagesofthereversedcycleuntilitisstoppedbythenegativepotentials.Amechanismbasedontheelectro-chemicalgenerationofCuIIIactivesitesandtheirsubsequentconsumptionbysaccharosewasproposed,andtheratelawandkineticparameterswereobtained.Thechargetransferresistancefromtheoreticalandimpedancestudieswasusedtoverifythemechanism.Underchronoamperometryregimes,thereactionfollowedCottrellianbehavior.Thetransferofupto21electronswasobservedinfurtherinvestigationsoftheelectro-oxidationofsaccharoseona(hydr)oxideCurotatingdiskelectrode.
%K saccharose
%K copper(hydr)oxide
%K equivalentcircuit
%K electrocatalyticoxidation
%K mechanism
%U http://www.chxb.cn/CN/abstract/abstract20273.shtml