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A novel core–shell structured Co11(HPO3)8(OH)6–Co3O4 hybrid material was synthesized in a hydrothermal condition from the microporous Co11(HPO3)8(OH)6 microrod precursor. Due to the unique nano/microstructures, the assembled asymmetric all-solid-state supercapacitor (Co11(HPO3)8(OH)6–Co3O4 and graphene) showed a high gravimetric specific capacitance of 1.84 F cm−3 at 0.5 mA cm−2 and an excellent cycling...
A flexible all-solid-state asymmetric micro-supercapacitor based on lamellar (K2Co3(P2O7)2·2H2O) nanocrystal whiskers and graphene nanosheets was successfully fabricated by inkjet printing in a simple and cost-effective way. A facile method to synthesize lamellar K2Co3(P2O7)2·2H2O nanocrystal whiskers under a mild hydrothermal condition was also established. The assembled micro-device exhibited a...
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