Palladium catalyst modified with molybdenum bronze as a possible alternative to platinum in the methanol oxidation reactionстатья
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Дата последнего поиска статьи во внешних источниках: 9 июня 2016 г.
Аннотация:nPd(H x − 2n MoO3)/GC electrodes were prepared by the surface reaction between red molybdenum bronze (H x MoO3, x ≈ 1.55) and palladium ions under the open-circuit conditions. The synthesized composites were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and inductively coupled plasma atomic emission spectroscopy (AES ICP). nPd(H x − 2n MoO3)/GC electrodes showed unusually high catalytic activity toward the methanol oxidation reaction (MOR), significantly higher than that of the electrodeposited palladium and not inferior to the platinum in the Pt/C catalysts. The effect of acceleration of MOR was explained by the bifunctional catalysis mechanism involving molybdenum bronzes. An important role of the Pd/molybdenum bronzes boundaries has been assumed.