Highly Dispersed Partially Stabilized Zirconias: Synthesis, Bulk and Surface Properties, Performance in the Selective Reduction of Nitrogen Oxides by Propane in the Excess of Oxygen Full article
Conference |
1996 MRS Fall Meeting & Exhibit 02-06 Dec 1996 , Boston |
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Source | Advanced catalytic materials - 1996 : symposium held December 2-5, 1996, Boston, Massachusetts, USA Compilation, Materials Research Society. Pittsburgh.1996. 306 c. ISBN 1558993584. |
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Journal |
MRS Online Proceedings Library
ISSN: 1946-4274 |
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Output data | Year: 1996, Volume: 454, Pages: 199-204 Pages count : 6 DOI: 10.1557/PROC-454-199 | ||||||||
Tags | Infrared spectroscopy; Nitrogen oxides; Oxygen; Precipitation (chemical); Propane; Reduction; Secondary ion mass spectrometry; Surface properties; Synthesis (chemical); X ray powder diffraction | ||||||||
Authors |
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Affiliations |
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Funding (1)
1 | Russian Foundation for Basic Research | 95-03-08196 |
Abstract:
Bulk and surface properties of dispersed partially stabilized zirconias (PSZ) prepared via coprecipitation of zirconium and alkaline-earth metal hydroxides have been studied by XPD, SIMS, IR spectroscopy of surface hydroxyls and adsorbed C.O. For Sr- and Ca-PSZ, the number of the Lewis acid centers, surface concentration of the guest cation and Zr-O bonding strength at the surface have been found to deviate substantially from the values predicted by a bulk truncation model, while for Ba-PSZ it seems to be valid. A local reconstruction of the near-surface layer into the perovskite-like structure was proposed for the first two systems, which explained satisfactorily their surface properties including catalytic performance in the selective reduction of nitrogen oxides by propane in the excess of oxygen. Such reconstruction is probably facilitated by segregation of the guest cations in the subsurface layer. The driving force for this process depends upon site preference of the alkaline-earth cations to cubooctahedrons and steric factors.
Cite:
Sadykov V.A.
, Ivanova A.S.
, Alikina G.M.
, Ivanov V.P.
, Bulgakov N.N.
, Kharlanov A.N.
, Lunina E.V.
, Lunin V.V.
, Zubareva N.A.
, Matyshak V.A.
, Rozovskii A.Y.
Highly Dispersed Partially Stabilized Zirconias: Synthesis, Bulk and Surface Properties, Performance in the Selective Reduction of Nitrogen Oxides by Propane in the Excess of Oxygen
In compilation Advanced catalytic materials - 1996 : symposium held December 2-5, 1996, Boston, Massachusetts, USA. – Materials Research Society., 1996. – C.199-204. – ISBN 1558993584. DOI: 10.1557/PROC-454-199 Scopus РИНЦ
Highly Dispersed Partially Stabilized Zirconias: Synthesis, Bulk and Surface Properties, Performance in the Selective Reduction of Nitrogen Oxides by Propane in the Excess of Oxygen
In compilation Advanced catalytic materials - 1996 : symposium held December 2-5, 1996, Boston, Massachusetts, USA. – Materials Research Society., 1996. – C.199-204. – ISBN 1558993584. DOI: 10.1557/PROC-454-199 Scopus РИНЦ
Dates:
Published print: | Jan 1, 1996 |
Published online: | Feb 10, 2011 |
Identifiers:
Scopus | 2-s2.0-0031355888 |
Elibrary | 21461853 |
Chemical Abstracts | 1997:789791 |
Chemical Abstracts (print) | 128:38762 |
OpenAlex | W2784931062 |