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催化学报  2014 

Catalyticandcapacitypropertiesofnanocompositesbasedoncobaltoxideandnitrogen-dopedcarbonnanofibers

DOI: 10.1016/S1872-2067(14)60099-1, PP. 960-969

Keywords: Cobaltoxide,Nitrogen-dopedcarbonnanofibers,Nanocomposite,COoxidation,Capacity

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Abstract:

?Thenanocompositesbasedoncobaltoxideandnitrogen-dopedcarbonnanofibers(N-CNFs)withcobaltoxidecontentsof10-90wt%wereexaminedascatalystsintheCOoxidationandsupercapacityelectrodes.DependingonCo3O4content,suchnanocompositeshavedifferentmorphologiesofcobaltoxidenanoparticles,distributionsoverthebulk,andratiosofCo3+/Co2+cations.The90%Co3O4-N-CNFsnanocompositeshowedthebestactivitybecauseoftheincreasedconcentrationofdefectsinN-CNFs.Thecapacitanceofelectrodescontaining10%Co3O4-N-CNFswas95F/g,whichis1.7timeshigherthanelectrodesmadefromN-CNFs.

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