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A DFT Study of the Acidity of Ultrastable Y Zeolite: Where Is the Broensted/Lewis Acid Synergism?

✍ Scribed by Claudio J. A. Mota; Daniel L. Bhering; Nilton Jr. Rosenbach


Publisher
John Wiley and Sons
Year
2004
Weight
60 KB
Volume
35
Category
Article
ISSN
0931-7597

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The inÑuence of the acidity of ultrastable Y (USY) zeolite-supported tungsten or nickel sulÐde catalysts, prepared at di †erent pH values, on thiophene hydrodesulfurization activity has been studied. The acidity a †ects the catalystsÏ deactivation. The results of the initial activity clearly show a