Thermal Stability of Surface Nitrogen–Oxygen Complexes and Phase Transitions in ZrO2 Full article
Journal |
Kinetics and Catalysis
ISSN: 0023-1584 , E-ISSN: 1608-3210 |
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Output data | Year: 2016, Volume: 57, Number: 2, Pages: 234-242 Pages count : 9 DOI: 10.1134/S002315841602004X | ||||||
Tags | Fourier transform IR spectroscopy, NO reduction, ZrO2 | ||||||
Authors |
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Affiliations |
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Funding (1)
1 | Russian Foundation for Basic Research | 14-03-00248 |
Abstract:
The IR spectra of surface compounds observed in the course of the temperature-programmed desorption (TPD) of NO x and the TPD spectra are compared. The high-temperature peaks of desorption are related to the decomposition of surface nitrites and nitrates. The low-temperature peaks of NO x desorption with maximums below 140°C are caused by the decomposition of surface nitrosyls. On the heating of surface nitrosyls, the following two reaction paths are possible: desorption at low temperatures and conversion into nitrates. The shape of the TPD spectra of NO depends on the phase composition of test samples. The transition of a tetragonal phase into a monoclinic one occurred upon the surface dehydroxylation of polycrystalline particles with the formation of particles with a tetragonal nucleus and a monoclinic crust. This transition is reversible. The cooling of a sample in a moist atmosphere leads to the transition of the monoclinic crust to the tetragonal phase
Cite:
Matyshak V.A.
, Sil'chenkova O.N.
, Sadykov V.A.
, Korchak V.N.
Thermal Stability of Surface Nitrogen–Oxygen Complexes and Phase Transitions in ZrO2
Kinetics and Catalysis. 2016. V.57. N2. P.234-242. DOI: 10.1134/S002315841602004X WOS Scopus РИНЦ
Thermal Stability of Surface Nitrogen–Oxygen Complexes and Phase Transitions in ZrO2
Kinetics and Catalysis. 2016. V.57. N2. P.234-242. DOI: 10.1134/S002315841602004X WOS Scopus РИНЦ
Original:
Матышак В.А.
, Сильченкова О.Н.
, Садыков В.А.
, Корчак В.Н.
Термостабильность поверхностных азот-кислородных комплексов и особенности фазовых переходов в ZrO2
Кинетика и катализ. 2016. Т.57. №2. С.228-236. DOI: 10.7868/S0453881116020040 РИНЦ
Термостабильность поверхностных азот-кислородных комплексов и особенности фазовых переходов в ZrO2
Кинетика и катализ. 2016. Т.57. №2. С.228-236. DOI: 10.7868/S0453881116020040 РИНЦ
Dates:
Submitted: | Apr 15, 2015 |
Published print: | Mar 1, 2016 |
Published online: | May 12, 2016 |
Identifiers:
Web of science | WOS:000376094000015 |
Scopus | 2-s2.0-84979518541 |
Elibrary | 27095360 |
Chemical Abstracts | 2016:773127 |
OpenAlex | W2356338804 |