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过程工程学报 2003
EffectsofPrecursorsforPreparingIntermediateLayeronthePerformanceofTi/SnO2+Sb2O3/PbO2AnodeKeywords: intermediatelayer,activelayer,precursor,electrocatalysis Abstract: TheTi/SnO2+Sb2O3/PbO2anodewithSnO2+Sb2O3intermediatelayerobtainedbythepolymericprecursormethod(PPM)andwiththeconventionalroutewasstudied.ThemorphologyandmicrostructureofSnO2+Sb2O3intermediatelayerderivedfromdifferentprecursorsandthetopPbO2activelayerwereexaminedbymeansofESEMandXRD.Thelifetimeandelectrocatalyticactivityoftheanodewerealsoassessedbythecyclicvoltammetryandacceleratedlifetimetestin1.0mol/LH2SO4solution.Itwasfoundthatprecursorsolventsaffectedlifetime,microstructureandmorphologyoftheanode,andhadlittleinfluenceonelectrocatalysisactivityoftheelectrodes.TheacceleratedlifetimeofTi/SnO2+Sb2O3/PbO2anodewithintermediatelayerpreparedbyPPMwas29.5hin1.0mol/LH2SO4solution,whichwasrespectivelyaboutfourtimesandtwicethatoftheanodepreparedwithethyleneglycolandethanol.Aftertheanodewassubjectedtothermalcorrosion,thelifetimestillreached27hincontrasttotheothers.
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