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Title of article :
Characterization of Pd catalyst-electrodes deposited on YSZ: Influence of the preparation technique and the presence of a ceria interlayer
Author/Authors :
Carmen Jiménez-Borja، نويسنده , , Florina Matei، نويسنده , , Fernando Dorado، نويسنده , , José Luis Valverde، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2012
Pages :
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Abstract :
Palladium catalyst-electrodes supported on Y2O3-stabilized-ZrO2 (YSZ) prepared either by paste deposition or wet impregnation technique were characterized using X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). It was found a strong dependence of the catalytic film preparation technique as well as of the presence of a ceria interlayer between the palladium film and the solid electrolyte on the catalytic activity towards methane oxidation. Impregnated palladium films were found to be more active than films prepared by paste deposition. Besides, the addition of ceria allowed stabilizing the palladium active phase for methane oxidation.
Keywords :
Palladium catalyst-electrodes , Ceria interlayer , Metal–support interactions , EPOC , YSZ , Methane combustion
Journal title :
Applied Surface Science
Serial Year :
Link To Document :