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A facile co-precipitation and annealing method for the growth of porous CoMn2O4 microspheres is presented. Serving as a supercapacitor electrode, the CoMn2O4 microsphere possesses a remarkable specific capacitance (788Fg−1 at the current density of 1Ag−1), which hold great promise for use as electrochemical energy storage.
In this work, the macro-mesoporous alumina monolith has been achieved for the first time via co-polymerization of styrene emulsion and aluminum precursor. After elimination of organic components by calcination at 800°C, the well-crystallized η-Al 2 O 3 phase was obtained, with S BET of 247.7m 2 /g. The spherical macropores in the micrometer range originated from a condensation...
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