Improved Electrocatalytic Activity of Size-Controlled Single-Crystalline Tungsten Oxide Nanoplates under Visible-Light Illumination

초록

We report size-controlled single crystalline WO3 center dot H2O nanoplates for improved electrocatalytic reaction under visible-light. The size-controlled single crystalline WO3 center dot H2O nanoplates were synthesized by means of hydrothermal reaction process as a function of reaction time and characterized by scanning electron microscopy, transmission electron microscopy, and X-ray powder diffraction method. The nanoplates showed a remarkably enhanced performance for methanol oxidation under AM 1.5 solar illumination as compared to that without the solar illumination. The improved photocatalytic activity of WO3 center dot H2O nanoplates might be related to an enhanced methanol oxidation by photo-generated holes in the WO3 center dot H2O under the solar illumination.

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