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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 19, Number 12
BKCSDE 19(12)
December 20, 1998

Title	A Study on the Sulfur-Resistant Catalysts for Water Gas Shift Reaction I. TPR Studies of Mo/γ-Al2O3 Catalysts
Author	Jin-Nam Park, Joon-Hee Kim, Ho-In Lee
Keywords
Abstract	Mo/γ-Al2O3 catalysts were prepared by impregnation method in various conditions to identify the states of surface Mo species. TPR (Temperature-Programmed Reduction) and Raman spectroscopy were applied to analyze the surface Mo species. TPR analysis revealed that MoO3 was reduced to Mo through MoO2, the intermediate state and the increase of Mo loading enhanced the reducibility of Mo oxide till the formation of monolayer coverage. High temperature calcination induced oxygen defects in MoO3 giving their unstable states for easier reduction. Raman spectroscopy analysis showed that the increase of Mo loading induced the polymeric Mo oxide.
Page	1363 - 1368
Full Text	PDF

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