Nanostructuredmetaloxidesderivedfrommetalorganicframeworkshavebeenshowntobepromisingmaterialsforapplicationinhighenergydensitylithiumionbatteries.Inthiswork,porousnanostructuredZnCo2O4andCo3O4weresynthesizedbyafacileandcost-effectiveapproachviathecalcinationofMOF-74precursorsandtestedasanodematerialsforlithiumionbatteries.ComparedwithCo3O4,theelectrochemicalpropertiesoftheobtainedporousnanostructuredZnCo2O4exhibithigherspecificcapacity,moreexcellentcyclingstabilityandbetterratecapability.Itdemonstratesareversiblecapacityof1243.2mAh/gafter80cyclesat100mA/gandanexcellentrateperformancewithhighaveragedischargespecificcapacitiesof1586.8,994.6,759.6and509.2mAh/gat200,400,600and800mA/g,respectively.ThesatisfactoryelectrochemicalperformancessuggestthatthisporousnanostructuredZnCo2O4ispotentiallypromisingforapplicationasanefficientanodematerialforlithiumionbatteries.
