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Fabrication of Hollow Carbon Nanospheres Encapsulating Platinum Nanoparticles Using a Photocatalytic Reaction


  • Y.H.Ng is grateful for the scholarship from the Ministry of Education, Culture, Sports, Science, and Technology, Japan. This research was partially supported by the Iketani Science and Technology Foundation. Supporting Information is available online from Wiley InterScience or from the author.


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The fabrication of Pt nanoparticles encapsulated in hollow carbon nanospheres using TiO2 nanoparticles as both the photocatalyst and the inorganic mold is demonstrated (see figure). These spheres are found to have high surface area and ultrathin shells with well-developed microporosity, and thus can be used as catalysts. This new imprinting method can be used to synthesize any desired nanostructures using predesigned TiO2 photocatalysts.

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