Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Metal – metal oxide or metal hydroxide
Patent
1989-10-27
1991-05-14
Shine, W. J.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Metal, metal oxide or metal hydroxide
502525, 338 34, 422 94, 422 98, B01J 2106, B01J 2302, B01J 2310, B01J 2378, B01J 2384, B01J 2386
Patent
active
050156160
ABSTRACT:
This invention provides a composition comprising a mixture or a fired product of a material of the general formula Sr.sub.(1+x)/2 La.sub.(1-x)/2 Co.sub.1-x Me.sub.x O.sub.3-.delta. (wherein Me: at least one of Fe, Mn, Cr and V; O.ltoreq.x.ltoreq.1; .delta.: loss of oxygen) and SrMeO.sub.3 (wherein Me: at least one of Ti, Zr and and Hf), and a catalyst and a multi-functional sensor using such composition. With this composition it is possible to improve the catalytic performance for cleaning exhaust gas grom combusters or internal combustion engines and to improve sensitivity or response characteristics of the sensors for detecting stoichiometric composition.
REFERENCES:
patent: 4044601 (1977-08-01), Sakurai et al.
patent: 4357426 (1982-11-01), Murata et al.
Analytical Chemistry Symposia Series, vol. 17, 1983, pp. 187-192, Elsevier, Amsterdam, NL; Y. Yamamura et al.: "An Element Sensitive to Stoichiometric Composition of Exhaust Gases".
Chemical Abstracts, vol. 95, No. 10, Sep. 7, 1981, p. 147, abstract No. 83548v, Columbus, Ohio, U.S.; & JP-A-81 54 340 (Matsushita Electric Industrial Co. Ltd) 5-14 1981.
Chemical Abstracts, vol. 95, No. 24, Dec. 14, 1981, p. 319, abstract No. 208865e, Columbus, Ohio, U.S.; & JP-A-81 89 048 (Matsushita Electric Industrial Co. Ltd) 07-20-1981.
Yamamura et al., "An Element Sensitive to Stoichiometric Composition of Exhaust Gases", Analytical Chemistry Symposia Series, vol. 17 (1983), pp. 187-192.
Chemical Abstracts, vol. 95, No. 10 (9/7/81), p. 147, Abstract No. 83548v.
Chemical Abstracts, vol. 95, No. 24 (12/14/81), p. 319, Abstract No. 208865e.
Sekido Satoshi
Tachibana Hirokazu
Yamamura Yasuharu
Research Association of Electric Conductive Inorganic Compounds
Shine W. J.
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