简介：RuO_2nanoparticlessupportedonmulti-walledcarbonnanotubes(CNTs)functionalizedwithoxygen(OCNTs)andnitrogen(NCNTs)wereemployedfortheoxygenevolutionreaction(OER)in0.1MKOH.Thecatalystsweresynthesizedbymetal-organicchemicalvapordepositionusingrutheniumcarbonyl(Ru_3(CO)_(12))asRuprecursor.TheobtainedRuO_2/OCNTandRuO_2/NCNTcompositeswerecharacterizedusingTEM,H_2-TPR,XRDandXPSinorderprobestructure–activitycorrelations,particularly,theeffectofthedifferentsurfacefunctionalgroupsontheelectrochemicalOERperformance.TheelectrocatalyticactivityandstabilityofthecatalystswithmeanRuO_2particlesizesof13–14nmwasevaluatedbylinearsweepvoltammetry,cyclicvoltammetry,andchronopotentiometry,showingthatthegenerationofnitrogen-containingfunctionalgroupsonCNTswasbeneficialforbothOERactivityandstability.InthepresenceofRuO_2,carboncorrosionwasfoundtobesignificantlylesssevere.

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