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M. Valenzuela Instituto Mexicano del Petróleo A.P. 14805 07730 México D. F. México A.P. 14805 07730 México D. F. México

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P. Bosch Universidad Autónoma Metropolitana-I A. P. 53534 09340 México D. F. México A. P. 53534 09340 México D. F. México

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B. Zapata Instituto Mexicano del Petróleo A.P. 14805 07730 México D. F. México A.P. 14805 07730 México D. F. México

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G. Aguilar-Ríos Instituto Mexicano del Petróleo A.P. 14805 07730 México D. F. México A.P. 14805 07730 México D. F. México

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V. Lara Universidad Autónoma Metropolitana-I A. P. 53534 09340 México D. F. México A. P. 53534 09340 México D. F. México

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E. García-Figueroa Universidad Autónoma Metropolitana-I A. P. 53534 09340 México D. F. México A. P. 53534 09340 México D. F. México

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I. Schifter Instituto Mexicano del Petróleo A.P. 14805 07730 México D. F. México A.P. 14805 07730 México D. F. México

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Abstract  

ZnAl2O4 and Sn−ZnAl2O4 were synthesized by coprecipitation, sol-gel and impregnation methods. These materials were calcined and treated in H2 at 1073 K. Thermal analysis (DTA and TG), nitrogen physisorption (BET method), X-ray diffraction (XRD) and scanning electron microscopy (SEM) were used as characterization techniques. H2 treatment promoted AlxZny crystallization in the coprecipitated and impregnated samples. When tin was added to zinc aluminate, the tin acted as a protective shell against high-temperature reduction, independently of the preparation technique.

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation
1969
Volumes
per Year
1
Issues
per Year
24
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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