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Tubular porous Co3O4 were hydrothermally synthesized at 120°C and post-calcined at 500°C using sorghum straw as biotemplate. The as-obtained porous Co3O4 inherited the morphology and microstructure of sorghum straw. Compared with the bare Co3O4, the tubular porous Co3O4 exhibited 5-fold enhancement in specific capacitance and excellent charge-discharge cycle stability with the capacitance retention...
Graphitic carbon nitride (C3N4) hexagonal microprisms were synthesized via a self-assembly route using (NH4)2CO3 as a structure-directing reagent. It shows that the extraordinary hierarchical structure is favorable to improving the photocatalytic activity of C3N4 toward water splitting under visible light irradiation (λ>420nm). The photocatalytic H2-evolution rate on the microprisms is 185 µmol/h,...
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