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Application of Microwave-Assisted Deposition for the Synthesis of Noble Metal Particles on Ti-Containing Mesoporous Silica

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Abstract

A facile and unique methodology to synthesize the nano-sized and uniform noble metal (Pt and Au) particles has been developed using mesoporous silica support including single-site titanium oxide moieties (Ti-HMS) under microwave irradiation. Characterization by CO adsorption, XAFS, and TEM analysis revealed that the size of metal particles depends on the preparation methods and that the smaller sizes of metal particles were formed on the microwave-assisted metal catalysts compared to the conventionally prepared impregnated catalysts. These nano-sized metal catalysts are useful as efficient catalysts for the various reactions such as the hydrogenation of nitrobenzene and oxidation of CO. This method is also successfully applicable to the deposition of Au metal with smaller size on the Ti-HMS.

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Acknowledgments

We are grateful for the financial support by Priority Assistance for the Formation of Worldwide Renowned Centers of Research—The Global COE Program (Project: Center of Excellence for Advanced Structural and Functional Materials Design) from the Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan. The X-ray adsorption expetimentals were performed at the SPring-8 BL01B1 station (2008A1366). The authors appreciate Dr. Eiji Taguchi and Prof. Hirotaro Mori at the Research Center for Ultra-High Voltage Electron Microscopy, Osaka University for assistance with TEM measurements.

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Authors and Affiliations

  1. Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1, Yamada-oka, Suita, 565-0871, Osaka, Japan

    Sayoko Shironita, Tomoya Takasaki, Takashi Kamegawa, Kohsuke Mori & Hiromi Yamashita

Authors
  1. Sayoko Shironita
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  2. Tomoya Takasaki
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  3. Takashi Kamegawa
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  4. Kohsuke Mori
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  5. Hiromi Yamashita
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Correspondence to Hiromi Yamashita.

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Shironita, S., Takasaki, T., Kamegawa, T. et al. Application of Microwave-Assisted Deposition for the Synthesis of Noble Metal Particles on Ti-Containing Mesoporous Silica. Catal Lett 129, 404–407 (2009). https://doi.org/10.1007/s10562-009-9861-x

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  • DOI: https://doi.org/10.1007/s10562-009-9861-x

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