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Platinum-Decorated Ruthenium Nanoparticles for Enhanced Methanol Electrooxidation

  1. Ching-Hsiang Chen Dr.1,
  2. Loka Subramanyam Sarma Dr.1,
  3. Di-Yan Wang2,
  4. Feng-Ju Lai1,
  5. Cun-Cun Al Andra1,
  6. Shi-Hong Chang1,
  7. Din-Goa Liu3,
  8. Chia-Chun Chen Prof.2,4,
  9. Jyh-Fu Lee Dr.3,
  10. Bing-Joe Hwang Prof.1,3

Article first published online: 20 NOV 2009

DOI: 10.1002/cctc.200900051

Issue

ChemCatChem

ChemCatChem

Volume 2, Issue 2, pages 159–166, February 8, 2010

Additional Information

How to Cite

Chen, C.-H., Sarma, L. S., Wang, D.-Y., Lai, F.-J., Al Andra, C.-C., Chang, S.-H., Liu, D.-G., Chen, C.-C., Lee, J.-F. and Hwang, B.-J. (2010), Platinum-Decorated Ruthenium Nanoparticles for Enhanced Methanol Electrooxidation. ChemCatChem, 2: 159–166. doi: 10.1002/cctc.200900051

Author Information

  1. 1

    Department of Chemical Engineering, National Taiwan University of Science and Technology, 43 Keelung Road, Section 4, Taipei 106, Taiwan (R. O. C), Fax: (+886) 2-27376644

  2. 2

    National Taiwan Normal University, Taipei, Taiwan (R.O.C)

  3. 3

    National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan (R.O.C)

  4. 4

    Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei, Taiwan (R.O.C)

Publication History

  1. Issue published online: 1 FEB 2010
  2. Article first published online: 20 NOV 2009
  3. Manuscript Revised: 1 SEP 2009
  4. Manuscript Received: 19 MAR 2009

Funded by

  • National Science Council. Grant Numbers: NSC-98-2120M-011-001, NSC-97-2221-E011-075-MY3
  • National Synchrotron Radiation Research Center (NSRRC)
  • National Taiwan University of Science and Technology
  • Institute of Atomic and Molecular Sciences, Academia Sinica, Taiwan

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Keywords:

  • electrocatalysis;
  • electrochemistry;
  • fuel cells;
  • nanoparticles;
  • X-ray absorption spectroscopy

Abstract

A promising electrocatalyst based on the reduction of Pt2+ ions on the surface of hexagonally close-packed (hcp) Ru core nanoparticles has been prepared by a redox–transmetalation process. This simple synthetic process generates a Pt-on-Ru catalyst with a lower Pt content than commercially available Pt[BOND]Ru electrocatalysts and with a long-range ordered hcp structure, which can significantly reduce the Pt loading. X-Ray absorption spectroscopy of the Pt-on-Ru catalyst reveals pronounced electronic modifications when compared to the commercial Pt[BOND]Ru black catalyst. The Pt-on-Ru catalyst exhibits a higher mass-specific current than the Pt[BOND]Ru black catalyst in solution in 0.5 M H2SO4 with 10 vol. % CH3OH under the conditions of rotating disk experiments. Further optimization of this synthetic procedure may yield even more active electrocatalysts with a significant reduction in noble metal loadings.

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