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Preparation and Study of Zinc-Air Batteries with Carbon-Supported Amorphous MnO2 Catalyst
Abstract:
Activated carbon as a supporter, using a redox reaction of MnSO4H2O and KMnO4, carbon-supported amorphous MnO2 catalysts were prepared for zinc-air battery positive. Using XRD and specific energy curve, the effects of MnO2/C and the corresponding zinc-air battery were studied by carbon material type and its amount, concentration of KMnO4 and the molar ratio of MnSO4H2O and KMnO4 by XRD. The results show that: Coal activated carbon as carbon supporter, C and MnO2 mass ratio was 4:3, concentration of KMnO4 in 27.2g L-1, molar ratio of KMnO4 and MnSO4 H2O was 2:3, get the battery performance and economic benefit of the best. Coal activated carbon, C and MnO2 quality ratio is 4:3, the KMnO4 concentration 27.2g L-1, KMnO4 and MnSO4H2O molar ratio of 2:3, best battery of the performance and economic benefits4.
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813-817
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August 2013
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© 2013 Trans Tech Publications Ltd. All Rights Reserved
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