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Nanocomposites of Ag2S and Noble Metals

Authors

  • Prof. Jun Yang,

    Corresponding author
    1. Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, The Nanos, Singapore 138669 (Singapore), Fax: (+65) 6478-9080
    2. Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190 (China), Fax: (+86) 10-8254-4915
    • Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, The Nanos, Singapore 138669 (Singapore), Fax: (+65) 6478-9080
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  • Prof. Jackie Y. Ying

    Corresponding author
    1. Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, The Nanos, Singapore 138669 (Singapore), Fax: (+65) 6478-9080
    • Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, The Nanos, Singapore 138669 (Singapore), Fax: (+65) 6478-9080
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  • We thank Dr. Jinhua Yang (Institute of Bioengineering and Nanotechnology (IBN)) for his assistance with the electrochemical measurements and Dr. Jiang Jiang, Dr. Yuangang Zheng, Dr. Jianping Xie, and Dr. Xiaojun Chen (IBN) for helpful discussions. We are grateful to Prof. Jim Yang Lee (National University of Singapore) for the use of the XPS facilities. This work was supported by IBN (Biomedical Research Council, Agency for Science, Technology and Research, Singapore). Part of the characterizations was completed at the Institute of Process Engineering, Chinese Academy of Sciences.

Abstract

original image

With a little help from my friends: Successive deposition of different noble metals on Ag2S nanocrystals yields binary, ternary, and quaternary hybrid nanocomposites (see picture). In particular, the platinum-containing systems were found to exhibit superior catalytic activity toward methanol oxidation.

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