A hierarchical porous carbon membrane from polyacrylonitrile/ polyvinylpyrrolidone blending membranes： Preparation, characterization and electrochemical capacitive performance-中国期刊网

摘要 Novelhierarchicalporouscarbonmembraneswerefabricatedthroughasimplecarbonizationprocedureofwell-definedblendingpolymermembraneprecursorscontainingthesourceofcarbonpolyacrylonitrile(PAN)andanadditiveofpolyvinylpyrrolidone(PVP),whichwaspreparedusingphaseinversionmethod.Theas-fabricatedmaterialswerefurtherusedastheactiveelectrodematerialsforsupercapacitors.TheeffectsofPVPconcentrationinthecastingsolutiononstructurefeatureandelectrochemicalcapacitiveperformanceoftheas-preparedcarbonmembraneswerealsostudiedindetail.Astheelectrodematerialforsupercapacitor,ahighspecificcapacitanceof278.0F/gcouldbeattainedatacurrentof5mA/cm2andabout92.90%capacityretentioncouldbemaintainedafter2000charge/dischargecyclesin2mol/LKOHsolutionwithaPVPconcentrationof0.3wt%inthecastingsolution.Thefacilehierarchicalporestructurepreparationmethodandthegoodelectrochemicalcapacitiveperformancemakethepreparedcarbonmembraneparticularlypromisingforuseinsupercapacitor.

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A hierarchical porous carbon membrane from polyacrylonitrile/ polyvinylpyrrolidone blending membranes： Preparation, characterization and electrochemical capacitive performance

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A hierarchical porous carbon membrane from polyacrylonitrile/ polyvinylpyrrolidone blending membranes： Preparation, characterization and electrochemical capacitive performance

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