Gavalas, G. R. and Phichitkul, C. and Voecks, G. E. (1984) Structure and Activity of NiO/α-Al_2O_3 and NiO/ZrO_2 Calcined at High Temperatures I. Structure. Journal of Catalysis, 88 (1). pp. 54-64. ISSN 0021-9517. https://resolver.caltech.edu/CaltechAUTHORS:20151104-143219052
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Abstract
A series of NiO/α-Al_2O_3 and NiO/ZrO_2 catalysts were prepared by impregnation and calcination in air between 750 and 1050 °C. Examination of the catalysts by means of nitrogen adsorption, H_2 chemisorption, X-ray diffraction, scanning electron microscopy, and X-ray photoelectron spectroscopy showed marked variations in physical and chemical properties as a function of calcination temperature. The results indicate that NiO does not interact with ZrO_2 whereas NiO-Al_2O_3 interaction is extensive at the interface between NiO and Al_2O_3 when the calcination temperature exceeds 850 °C. When the calcined samples of NiO/ZrO_2 were reduced in hydrogen, extensive redispersion of the metal was observed.
| Item Type: | Article | |||||||||
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| Additional Information: | © 1984 by Academic Press, Inc. Received December 13, 1982; revised February 14, 1984. | |||||||||
| Issue or Number: | 1 | |||||||||
| Record Number: | CaltechAUTHORS:20151104-143219052 | |||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20151104-143219052 | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 61844 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | Ruth Sustaita | |||||||||
| Deposited On: | 05 Nov 2015 02:44 | |||||||||
| Last Modified: | 03 Oct 2019 09:12 |
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