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Reactivity of non-stoichiometric black alumina; Reactivite des alumines noires non stoechiometriques

Abstract

Oxides such as alumina, when divided or poorly crystallized, show enhanced physico-chemical properties with respect to those of non-divided crystals of the same solids. A stoichiometric difference may even be produced in the alumina, which brings about a new modification of its properties. However its characteristics of hydrogen chemisorption or of catalytic activity in ethylene hydrogenation do not appear to depend on the stoichiometric difference. (author) [French] Les oxydes, comme l'alumine, divises ou mal cristallises, presentent des proprietes physico-chimiques exaltees par rapport a celles des memes solides en cristaux non divises. Un ecart a la stoechiometrie peut meme etre produit dans l'alumine, ce qui entraine une nouvelle modification de ses proprietes. Toutefois ses caracteristiques de chimisorption d'hydrogene ou d'activite catalytique d'hydrogenation d'ethylene ne semblent pas dependre de l'ecart a la stoechiometrie. (auteur)
Authors:
Arghiropoulos, B; Elston, J; Hilaire, P; Juillet, F; Teichner, S J [1] 
  1. Commissariat a l'Energie Atomique, Saclay (France). Centre d'Etudes Nucleaires
Publication Date:
Jul 01, 1960
Product Type:
Technical Report
Report Number:
CEA-R-1663
Resource Relation:
Other Information: 22 refs
Subject:
36 MATERIALS SCIENCE; ALUMINIUM OXIDES; AMORPHOUS STATE; CATALYTIC EFFECTS; CHEMICAL PROPERTIES; CHEMISORPTION; ELECTRIC CONDUCTIVITY; HEAT TREATMENTS; HYDROGEN; HYDROGENATION; N-TYPE CONDUCTORS; P-TYPE CONDUCTORS; POLYCRYSTALS; POWDERS; RECRYSTALLIZATION; SPECIFIC SURFACE AREA; STOICHIOMETRY; THERMODYNAMIC PROPERTIES
OSTI ID:
20953754
Research Organizations:
CEA Saclay, 91 - Gif-sur-Yvette (France)
Country of Origin:
France
Language:
French
Other Identifying Numbers:
TRN: FR07R1663105035
Availability:
Available from INIS in electronic form
Submitting Site:
FRN
Size:
17 pages
Announcement Date:
Dec 21, 2007

Citation Formats

Arghiropoulos, B, Elston, J, Hilaire, P, Juillet, F, and Teichner, S J. Reactivity of non-stoichiometric black alumina; Reactivite des alumines noires non stoechiometriques. France: N. p., 1960. Web.
Arghiropoulos, B, Elston, J, Hilaire, P, Juillet, F, & Teichner, S J. Reactivity of non-stoichiometric black alumina; Reactivite des alumines noires non stoechiometriques. France.
Arghiropoulos, B, Elston, J, Hilaire, P, Juillet, F, and Teichner, S J. 1960. "Reactivity of non-stoichiometric black alumina; Reactivite des alumines noires non stoechiometriques." France.
@misc{etde_20953754,
title = {Reactivity of non-stoichiometric black alumina; Reactivite des alumines noires non stoechiometriques}
author = {Arghiropoulos, B, Elston, J, Hilaire, P, Juillet, F, and Teichner, S J}
abstractNote = {Oxides such as alumina, when divided or poorly crystallized, show enhanced physico-chemical properties with respect to those of non-divided crystals of the same solids. A stoichiometric difference may even be produced in the alumina, which brings about a new modification of its properties. However its characteristics of hydrogen chemisorption or of catalytic activity in ethylene hydrogenation do not appear to depend on the stoichiometric difference. (author) [French] Les oxydes, comme l'alumine, divises ou mal cristallises, presentent des proprietes physico-chimiques exaltees par rapport a celles des memes solides en cristaux non divises. Un ecart a la stoechiometrie peut meme etre produit dans l'alumine, ce qui entraine une nouvelle modification de ses proprietes. Toutefois ses caracteristiques de chimisorption d'hydrogene ou d'activite catalytique d'hydrogenation d'ethylene ne semblent pas dependre de l'ecart a la stoechiometrie. (auteur)}
place = {France}
year = {1960}
month = {Jul}
}