教師著作

Permanent URI for this collectionhttp://rportal.lib.ntnu.edu.tw/handle/20.500.12235/37076

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Subject: search.filters.subject.electrocatalysis

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    FeS2 Nanocrystal Ink as a Catalytic Electrode for Dye-Sensitized Solar Cells
    (Wiley-VCH Verlag, 2013-06-24) Y.-C. Wang; D.-Y. Wang; Y.-T. Jiang; H.-A. Chen; Chia-Chun Chen; K.-C. Ho; - H.-L. Chou; Chun-Wei Chen
    Calligraphic counter electrodes: An important photovoltaic application using FeS2 nanocrystal (NC) pyrite ink to fabricate a counter electrode as an alternative to Pt in dye-sensitized solar cells is demonstrated. FeS2 NC ink exhibits excellent electrochemical catalytic activity and remarkable electrochemical stability. ITO=indium-doped tin oxide.
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    Platinum-Decorated Ruthenium Nanoparticles for Enhanced Methanol Electrooxidation
    (Wiley-VCH Verlag, 2010-02-08) C.-H. Chen; L. S. Sarma; D. -Y. Wang; F.-J. Lai; C.-C. AI Andra; S.-H. Chang; D.-G. Liu; Chia-Chun Chen; J.-F. Lee; B.-J. Hwang
    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.