X-ray Photoelcctron Spectroscopy Study on Cobalt-impregnated Zeolites

Abstract

Abstract: X-ray photoelectron spectroscopy was used to investigate three impregnated zeolites Co/HY, Co/ZSM-5 and Co/HA. It is found that the three zeolites cotain nonreducible CoAl₂O₄species in the interior of the zeolies, and the reducible cobalt hydrate on the surface of the zeolites. The calcination process can accelerate the formation fo CoAl₂O₄species. The interaction between Co species and zeolites in the three samples of zeolites was investigated by using the H₂reduction experiments. It is shown that the sequence of interaction extent follows. Co/HA > Co/ZSM-5 > Co. HY.

Key words: Cobalt ion, Zeolite, XPS

TrendMD:

Wei Quan, Ying Chun-zhong . X-ray Photoelcctron Spectroscopy Study on Cobalt-impregnated Zeolites[J]. Chem. J. Chinese Universities, 1991, 12(1): 80.

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X-ray Photoelcctron Spectroscopy Study on Cobalt-impregnated Zeolites

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