Electronic and cluster effects in films of gadolinium-copper alloys in the low-temperature homomolecular exchange of hydrogen

Journal Article · Sun Nov 01 00:00:00 EST 1987 · Dokl. Phys. Chem. (Engl. Transl.); (United States)

OSTI ID:6965543

Zhavoronkova, K N; Boeva, O A; Vinogradov, A R; Nefedov, V I; Malakhova, A N

In the authors previous work, they discovered a sharp increase in the specific catalytic activity (K/sub sp/) relative to the low-temperature homomolecular isotropic exchange of hydrogen upon copper. In this work, this study was continued for the Gd-Cu system. They investigated the specific catalytic activity of the films obtained by the complete atomization of a sample of the intermetallide GdCu/sub 6/ and the change in the K/sub sp/ upon gradual atomization. A study was also carried out on the change in the composition of the film over its depth by x-ray photoelectron spectroscopy in conjunction with ionic etching. The area of the surface obtained was measured relative to hydrogen adsorption at -196/sup 0/C and then the rate of the ortho-para conversion of hydrogen was measured at this temperature. Subsequently, the rate of the H/sub 2/-D/sub 2/ isotope exchange was studied at from -196 to -30/sup 0/C.

• Research Organization: D. I. Mendeleev Moscow Chemical Technology Institute (USSR)
• OSTI ID: 6965543
• Journal Information: Dokl. Phys. Chem. (Engl. Transl.); (United States), Vol. 294:1-3; Other Information: Translated from Dokl. Akad. Nauk SSSR; 294: Nos. 1-3, 115-119(May, 1987)
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
COPPER ALLOYS
CATALYTIC EFFECTS
CONFIGURATION INTERACTION
HYDROGEN TRANSFER
ISOTOPIC EXCHANGE
GADOLINIUM ALLOYS
HYDROGEN
ADSORPTION
HETEROGENEOUS CATALYSIS
ATOMIZATION
COPPER
CRYSTAL DOPING
DEUTERIUM
ELECTRONIC STRUCTURE
ETCHING
METALLURGICAL EFFECTS
PHOTOELECTRON SPECTROSCOPY
SORPTIVE PROPERTIES
SPRAYED COATINGS
THIN FILMS
X-RAY SPECTRA
ALLOYS
CATALYSIS
COATINGS
ELECTRON SPECTROSCOPY
ELEMENTS
FILMS
HYDROGEN ISOTOPES
ISOTOPES
LIGHT NUCLEI
METALS
NONMETALS
NUCLEI
ODD-ODD NUCLEI
RARE EARTH ALLOYS
SORPTION
SPECTRA
SPECTROSCOPY
STABLE ISOTOPES
SURFACE FINISHING
SURFACE PROPERTIES
TRANSITION ELEMENTS
360102* - Metals & Alloys- Structure & Phase Studies
400202 - Isotope Effects
Isotope Exchange
& Isotope Separation