Visible light-induced water oxidation on mesoscopic alpha-Fe(sub 2)O(sub 3) films made by ultrasonic spray pyrolysis

Article Abstract:

Ultrasonic spray pyrolysis (USP) was used to produce alpha-Fe(sub 2)O(sub 3) films having a mesoscopic leaflet type structure to explore their potential as oxygen evolving photo anodes. The mesoscopic leaflet structure had the advantage that it allowed for efficient harvesting of visible light, while offering at the same time the short distance required for the photogenerated holes to reach the electrolyte interface before recombining with conduction band electrons.

Analysis, Pyrolysis

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Photoelectrochemical decomposition of water into H2 and O2 on porous BiVO4 thin-film electrodes under visible light and significant effect of Ag ion treatment

Article Abstract:

The photoelectrochemical properties of porous BiVO4 thin-film electrodes on conducting glass for H2 production from water under visible light were examined. Under visible light irradiation, the photocurrent increased with addition of methanol and the valence-band potential of BiVO4 was shifted negatively compared to the potentials of the conventional oxide semiconductors without Bi.

Science & research, Research, Radiation chemistry

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Thin film water on muscovite mica

Article Abstract:

Water adsorbed to the (001) plane of muscovite mica has an infrared spectrum consistent with a bonding network that is more structured than that found in bulk water. Isotherms taken at temperatures ranging from near the ice melting point to room temperature suggests that water wets mica incompetently.

Structure, Muscovite

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