Photocatalytic activity of MnWO4 powder in highly effective hydrogen generation from H2O and H2O2
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Hai Yan He
Abstract
Hydrogen gas is a clear energy resource. The hydrogen generation from the H2O/H2O2/MnWO4 system was studied for the first time. The MnWO4 powders were fabricated via an aqueous reaction method and followed by calcination at 400°C. The powders were characterized with X-ray diffraction, transmission electron microscopy, and X-ray photoelectron spectrometry. The efficiency of the hydrogen generation increased with increasing initial pH in the appropriate range, H2O2 proportion, MnWO4 proportion, and intensity of light resource. Calcining at 400°C for 1 h makes the MnWO4 powder more effective for H2 generation and more stable at higher initial pH. The MnWO4 catalyst showed a long-term stability for photocatalytic H2 generation. A mechanism of the hydrogen generation from the H2O/H2O2/MnWO4 system is suggested.
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© 2012, Carl Hanser Verlag, Munich
Artikel in diesem Heft
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- Study of the mechanism of ductile-regime grinding of SiCp/Al composites using finite element simulation
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- DGM News
- DGM News
Artikel in diesem Heft
- Contents
- Contents
- Original Contributions
- Phase equilibria in the Gd–Ni binary and Mg–Ni–Gd ternary systems
- Thermodynamics of dilute binary solid solutions using the cluster variation method
- Thermal stability of coherent Pd/TiAl interfaces studied from first-principles calculations and experiments
- Electropulsing-induced phase transformations and their effects on the single point diamond turning of a tempered alloy AZ91
- Study of the mechanism of ductile-regime grinding of SiCp/Al composites using finite element simulation
- Investigations on laser welding of magnesium alloys
- Investigation of the surface of a laser-treated cast iron cylinder bore
- Solidification behaviour of an AA5754 Al alloy ingot cast with high impurity content
- Study of the structural evolution of crystalline zinc oxide films prepared by PLD
- Effects of sintering temperature on pore characterization and strength of porous cordierite–mullite ceramics by a pore-forming in-situ technique
- Sol–gel synthesis of Eu3+, Tb3+ co-doped Y2O3 scintillating nanopowders
- Morphological study of SiC coating developed on 2D carbon composites using MTS precursor in a hot-wall vertical reactor
- Self-assembling behavior and corrosion inhibition properties of TDPA films on differently structured surfaces of 2024 and 1060 aluminum alloys
- Photocatalytic activity of MnWO4 powder in highly effective hydrogen generation from H2O and H2O2
- Rheology and microstructure of polymer-modified asphalt nanocomposites
- Short Communications
- Microstructure and phase composition in a die cast Mg–Nd alloy containing Zn and Zr
- DGM News
- DGM News
