A　novel　Co3O4/flocculent　graphene　(FG)　hybrid　on　commercial　Ni　foam　(NF)　has　been　prepared.　The　unique　flocculent　graphene　structure　is　prepared　by　combining　a　rapid　filtering　approach　through　Ni　foam　and　a　template　method,　in　which　the　thermally　expanded　graphite　is　used　as　precursor　and　polystyrene　(PS)　microspheres　are　used　as　templates.　The　PS　spheres　play　an　important　role　in　preventing　the　re-stacking　of　graphene　nanosheets　and　the　formation　of　flocculent　graphene　on　NF.　The　PS　spheres　were　first　introduced　as　a　guest　material　and　were　subsequently　removed　by　calcination.　The　resulting　freestanding　FG/NF　provides　a　three-dimensional　and　high　conductivity　scaffold　for　the　hydrothermal　growth　of　Co3O4　nanoclusters.　The　obtained　Co3O4/FG/NF　hybrid　could　be　directly　used　as　a　binder-free　supercapacitor　electrode.　Moreover,　the　Co3O4　nanoclusters　on　FG/NF　scaffold　exhibit　improved　specific　capacitance　of　1615　F　g(-1)　compared　to　that　of　the　bare　NF.　The　3D　active　material　layer　of　Co3O4/FG/NF　hybrid,　high　conductivity　of　3D　FG/NF　scaffold　and　functional　features　of　the　Co3O4　nanocluster　morphology　synergistically　result　in　an　improved　electrochemical　performance.