Catalysts based on activated aluminum alloys. I. A study of copper-alumina catalysts by XPS and deuterium-hydrogen exchange

Journal Article · Thu Sep 01 00:00:00 EDT 1994 · Kinetics and Catalysis

OSTI ID:39372

Yakerson, V I; Subbotin, A N; Gudkov, B S; Tkachenko, O P ^[1]; Sarmurzina, R G ^[2]

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1. Zelinskii Institute of Organic Chemistry, Moscow (Russian Federation)
2. Institute Metallurgy, Alma-Ata (Kazakhstan)

Surface compositions and electron states of elements in copper-containing catalysts prepared by water treatment of copper-aluminum alloys activated by indium and gallium are studied by XPS. The copper contents in the surface layers of the catalysts is found to be less than that in the bulk. Fast isotopic H{sub 2}-D{sub 2} exchange at 70-200{degrees}C on reduced copper-containing samples and the absence of the exchange on copper-free samples indicate dissociative hydrogen adsorption on copper-containing active sites. The activation energy for the isotopic exchange is essentially dependent on the procedure of catalyst preparation.

• OSTI ID: 39372
• Journal Information: Kinetics and Catalysis, Vol. 35, Issue 5; Other Information: PBD: Sep-Oct 1994; TN: Translated from Kinetika i Kataliz; 35: No. 5, 791-794(1994)
• Country of Publication: United States
• Language: English

Related Subjects

40 CHEMISTRY
36 MATERIALS SCIENCE
COPPER ALLOYS
CATALYTIC EFFECTS
SURFACE PROPERTIES
HYDROGEN
ADSORPTION
ISOTOPIC EXCHANGE