ChemInform Abstract: Pt—Ru/Carbon Fiber Nanocomposites: Synthesis Characterization, and Performance as Anode Catalysts of Direct Methanol Fuel Cells. A Search for Exceptional Performance.
Abstract
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ChemInform Abstract
The title materials are prepared using (η-C2H4)(Cl)Pt(μ-Cl)2Ru(Cl) (η3:η3-2,7-dimethyloctadienediyl) as a single-source molecular precursor of Pt and Ru metal. Carbon fiber supports include single- and multiwalled nanotubes, and graphitic carbon nanofibers having either platelet, wide herringbone, or narrow tubular herringbone atomic structures. The samples are characterized by powder XRD and TEM. A Pt—Ru/narrow tubular herringbone graphitic carbon nanofiber nanocomposite shows the highest direct methanol fuel cell performance. Its performance is comparable with an unsupported Pt—Ru colloid having an anode catalyst loading of 2.7 mg metal/cm2 and is 64% greater than that of the unsupported Pt—Ru colloid at a catalyst loading of 1.5 mg/cm2
