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Spontaneous Formation of a Tungsten Trioxide Sphere-in-Shell Superstructure by Chemically Induced Self-Transformation

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  • This work was supported by EPSRC (Platform Grant. EP/C518748/1) and the NSFC (No. 20473059, 50625208, and 20773097), KRPCME(106114), 973 Program (2007CB613302) and PCSIRT (No. IRT0547).

Abstract

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Photocatalytic WO3⋅1/3H2O hollow microspheres with hierarchically porous crystalline shell walls and detached amorphous cores are successfully fabricated using a low-temperature one-pot hydrothermal method (see figure). Structural investigations and photocatalytic activity results are presented.

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