✦ LIBER ✦

An X-ray photoelectron spectroscopy study on zeolites

✍ Scribed by J.-Fr. Tempere; D. Delafosse; J.P. Contour

Publisher: Elsevier Science
Year: 1975
Tongue: English
Weight: 355 KB
Volume: 33
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(75)85461-3

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✦ Synopsis

X-ray photoelecrron spectroscopy (;xPS) las been used :O study the estemal layers of some zeolitc surfaces. It has been shown that the (SijAl) ratio of the external surf== is rou&ly twi= that of the bulk. The Ce'+ oxidation ofcerium exchansd Y zeoiite has been studied, and cerium diotide formation is detected. CeOz is located on the external surface and may generate a selective "screening effect" agzinsi the silicon atoms.

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