Journal of Radioanalytical and Nuclear Chemistry
Volume/Issue:
Volume 245: Issue 3
X-Ray Diffraction and Mössbauer Characterization of Raney Fe-Ni Catalysts
Authors:
B. Zeifert Instituto Politécnico Nacional, ESIQIE Av. IPN s/n, Edif.7, UPALM, Zacatenco 07300 México-D.F. México

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J. Salmones Instituto Mexicano del Petróleo, STI Gerencia de Catálisis y Materiales Eje Central Lázaro Cárdenas 152 07730 México-D.F. México

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J. Hernández Instituto Politécnico Nacional, ESIQIE Av. IPN s/n, Edif.7, UPALM, Zacatenco 07300 México-D.F. México

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R. Reynoso Instituto Politécnico Nacional, ESIQIE Av. IPN s/n, Edif.7, UPALM, Zacatenco 07300 México-D.F. México

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N. Nava Instituto Mexicano del Petróleo, STI Gerencia de Catálisis y Materiales Eje Central Lázaro Cárdenas 152 07730 México-D.F. México

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E. Reguera Instituto Politécnico Nacional, ESIQIE Av. IPN s/n, Edif.7, UPALM, Zacatenco 07300 México-D.F. México

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J. Cabañas-Moreno Instituto Politécnico Nacional, ESIQIE Av. IPN s/n, Edif.7, UPALM, Zacatenco 07300 México-D.F. México

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G. Aguilar-Ríos Instituto Politécnico Nacional, ESIQIE Av. IPN s/n, Edif.7, UPALM, Zacatenco 07300 México-D.F. México

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Pages:
637–639
Online Publication Date:
02 Nov 2004
Publication Date:
17 Sep 2000
Article Category:
Research Article
DOI:
https://doi.org/10.1023/a:1006798302775
Restricted access

Abstract  

Rancy type catalysts were prepared by means of a two step procedure: (1) Mechanical alloying of the metals and, (2) alkaline aluminum leaching. Mechanical alloying is a novel atlernative related to the synthesis of skeletal Ni catalysts. X-ray diffraction, and Mössbauer spectroscopies were performed for catalysts characterization. Binary Al-Ni and ternary Al-Ni-Fe alloys were produced by mechanical alloying from pure metallic powders; in particular, the intermetallic -(AlNi) phase was formed with a fine microstructure as a non-equilibrium phase; then, aluminum was selectively removed. After aluminum leaching the -(AlNi) phase was transformed into the more stable nickel fee structure.

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Cover Journal of Radioanalytical and Nuclear Chemistry
Journal of Radioanalytical and Nuclear Chemistry
Print ISSN:
0236-5731
Online ISSN:
1588-2780

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Journal of Radionalytical and Nuclear Chemistry
Language English
Size A4
Year of
Foundation		 1968
Volumes
per Year		 1
Issues
per Year		 12
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 0236-5731 (Print)
ISSN 1588-2780 (Online)

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