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- ISSN: 1876-4029
- E-ISSN: 1876-4037
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Highly Efficient Hydrogen Generation from H2O/H2O2/MnO2 System
- Source: Micro and Nanosystems, Volume 4, Issue 1, Feb 2012, p. 37 - 40
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- 01 Feb 2012
Abstract
The photocatalytic hydrogen generation from H2O/H2O2/MnO2 system and H2O2 concentration dependence of the efficiency were studied for the first time. The MnO2 powder was synthesized by an aqueous reaction followed by low temperature calcination. The powder appeared very stable in water. The absorption edge of the MnO2 powder was ∼1248 nm, corresponding to a band gap of ∼0.68eV. The experiment results of the hydrogen generation revealed that the efficiency was very high and increased as increase in H2O2 concentration. A mechanism for the hydrogen generation was mainly discussed.
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