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Title: Process for forming a homogeneous oxide solid phase of catalytically active material

Patent ·
OSTI ID:869951
 [1];  [2];  [3]
  1. Hercules, CA
  2. Walnut Creek, CA
  3. Berkeley, CA
+ Show Author Affiliations

A process is disclosed for forming a homogeneous oxide solid phase reaction product of catalytically active material comprising one or more alkali metals, one or more alkaline earth metals, and one or more Group VIII transition metals. The process comprises reacting together one or more alkali metal oxides and/or salts, one or more alkaline earth metal oxides and/or salts, one or more Group VIII transition metal oxides and/or salts, capable of forming a catalytically active reaction product, in the optional presence of an additional source of oxygen, using a laser beam to ablate from a target such metal compound reactants in the form of a vapor in a deposition chamber, resulting in the deposition, on a heated substrate in the chamber, of the desired oxide phase reaction product. The resulting product may be formed in variable, but reproducible, stoichiometric ratios. The homogeneous oxide solid phase product is useful as a catalyst, and can be produced in many physical forms, including thin films, particulate forms, coatings on catalyst support structures, and coatings on structures used in reaction apparatus in which the reaction product of the invention will serve as a catalyst.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Assignee:
Regents, University of California (Oakland, CA)
Patent Number(s):
US 5427993
OSTI ID:
869951
Country of Publication:
United States
Language:
English

References (11)

Growth of highly oriented CdS thin films by laser‐evaporation deposition journal March 1988
HgTe and CdTe epitaxial layers and HgTe–CdTe superlattices grown by laser molecular beam epitaxy journal July 1986
Preparation of oriented Bi‐Ca‐Sr‐Cu‐O thin films using pulsed laser deposition journal July 1988
Preparation of Y‐Ba‐Cu oxide superconductor thin films using pulsed laser evaporation from high Tc bulk material journal August 1987
Cadmium arsenide films prepared by pulsed laser evaporation: electrical proerties and lattice parameters journal February 1987
Diamond‐like carbon films prepared with a laser ion source journal July 1988
Formation of thin superconducting films by the laser processing method journal November 1987
Laser-assisted sputtering of Pb1−x Cd x Se films journal May 1986
Y‐Ba‐Cu‐O superconducting films produced by long‐pulse laser vaporization journal July 1989
As‐deposited Sb‐doped Bi‐Pb‐Sr‐Ca‐Cu‐O thin films prepared by pulsed laser deposition journal December 1990
Pulsed-laser evaporation technique for deposition of thin films: Physics and theoretical model journal May 1990

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process
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catalytically
active
material
disclosed
reaction
product
comprising
alkali
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alkaline
earth
viii
transition
comprises
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salts
capable
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resulting product
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transition metals
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metal oxide
alkaline earth
transition metal
earth metal
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process comprises
metal oxides
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alkali metals
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earth metals
heated substrate
phase reaction
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comprises reacting
stoichiometric ratio
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