The Journal of Physical Chemistry

Electronic metal support interaction in platinum catalysts under deuterium-ethene reaction conditions and the microscopic nature of the active sites

H Yoshitake, Y Iwasawa

Index: Yoshitake, Hideaki; Iwasawa, Yasuhiro Journal of Physical Chemistry, 1992 , vol. 96, # 2 p. 1329 - 1334

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Citation Number: 71

Abstract

The electronic states and the nature of active sites of Pt/Y203, Pt/Zr02, Pt/V203, and Pt/Ti02 in the working state were investigated by X-ray absorption near-edge structure (XANES) spectroscopy, kinetics, and isotope-tracing techniques. The density of the unoccupied 5d state of Pt decreased as the reduction temperature of catalysts increased, but its degree strongly depended on the nature of support. High-temperature reduction of Pt/Zr02 and Pt/ ...

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