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A series novel inorganic tri-component nanohybrid was fabricated by using polyoxometalates (POMs) as both building blocks and functional component.Among them, series of the metal Np@POM-CNT and metal NP@POM graphene nanohybrids were synthesized.It is found that all the prepared nanohybrid showed enhanced photo-electrical catalytic activities toward various reactions including hydrogen evolution by water splitting, oxygen reduction, methanol oxidation etc.Especially, the prepared Au NP@POM-graphene nanohybrid showed excellent biosensor property toward H2O2 detection.Our works provide a novel way for fabricating of efficient photo/electronic catalyst for sustainable energy.