Effect of the Synthesis Conditions on the Crystal, Local, and Electronic Structures of Ce2x4+Ce2-2x3+M2O7 + x (M = Zr, Hf) Full article
Journal |
Russian Journal of Inorganic Chemistry
ISSN: 0036-0236 , E-ISSN: 1531-8613 |
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Output data | Year: 2018, Volume: 63, Number: 4, Pages: 503-511 Pages count : 9 DOI: 10.1134/s0036023618040150 | ||||||||
Tags | X-RAY-DIFFRACTION; ELECTRICAL-PROPERTIES; SOLID-SOLUTIONS; PHASE; SYSTEM; POWDERS; ANODES; OXIDES; REDOX; XRD | ||||||||
Authors |
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Affiliations |
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Funding (1)
1 | The Ministry of Education and Science of the Russian Federation | 02.A03.21.0005 |
Abstract:
The effect of synthesis conditions (type of cations, annealing temperature, reductive or oxidative
atmosphere) on the chemical composition and structure of compounds formed in the MO2–CeO2/Ce2O3
systems (M = Zr, Hf) was studied by X-ray diffraction, X-ray absorption spectroscopy, Raman spectroscopy,
and thermogravimetric analysis. The isothermal annealing of the precursors at temperatures below 1000°C in
air gives Ce0.5M0.5O2 powders with fluorite type cubic structure (space group ). High-temperature
annealing above 1000°C gives rise to additional tetragonal (space group P42/nmc) (for zirconates) or monoclinic
(space group P21/a) (for hafnates) phases. The annealing in a hydrogen atmosphere affords the compounds
M2O7 + x with an intermediate oxidation state of cerium and the x value depending on
both the reduction conditions and the pre-annealing parameters. Vacuum annealing at 1400°C considerably
decreases the content of Ce(IV) in the samples and affords a pyrochlore structure (space group ) with
predominating Ce(III) cations.
Cite:
Popov V.V.
, Menushenkov A.P.
, Khubbutdinov R.M.
, Yastrebtsev A.A.
, Sharapov A.S.
, Zubavichus Y.V.
, Svetogorov R.D.
, Trigub A.L.
, Tsarenko N.A.
, Arzhatkina L.A.
, Kurilkin V.V.
Effect of the Synthesis Conditions on the Crystal, Local, and Electronic Structures of Ce2x4+Ce2-2x3+M2O7 + x (M = Zr, Hf)
Russian Journal of Inorganic Chemistry. 2018. V.63. N4. P.503-511. DOI: 10.1134/s0036023618040150 WOS Scopus РИНЦ
Effect of the Synthesis Conditions on the Crystal, Local, and Electronic Structures of Ce2x4+Ce2-2x3+M2O7 + x (M = Zr, Hf)
Russian Journal of Inorganic Chemistry. 2018. V.63. N4. P.503-511. DOI: 10.1134/s0036023618040150 WOS Scopus РИНЦ
ArticleLinkType.TRANSLATED_TO_ORIGINAL:
Попов В.В.
, Менушенков А.П.
, Хуббутдинов Р.М.
, Ястребцев А.А.
, Шарапов А.С.
, Зубавичус Я.В.
, Светогоров Р.Д.
, Тригуб А.Л.
, Царенко Н.А.
, Аржаткина Л.А.
, Курилкин В.В.
Влияние условий синтеза на кристаллическую, локальную и электронную структуру соединений Ce4+2хCe3+2-2хМ2O7+х (M = Zr, Hf)
Журнал неорганической химии. 2018. Т.63. №4. С.472-479. DOI: 10.7868/S0044457X18040128 РИНЦ
Влияние условий синтеза на кристаллическую, локальную и электронную структуру соединений Ce4+2хCe3+2-2хМ2O7+х (M = Zr, Hf)
Журнал неорганической химии. 2018. Т.63. №4. С.472-479. DOI: 10.7868/S0044457X18040128 РИНЦ
ArticleLinkType.TRANSLATED_TO_ORIGINAL:
Попов В.В.
, Менушенков А.П.
, Зубавичус Я.В.
, Шарапов А.С.
, Кабанова В.А.
, Ястребцев А.А.
, Аржаткина Л.А.
, Царенко Н.А.
, Стрельникова А.М.
, Курилкин В.В.
Влияние условий синтеза на кристаллическую, локальную и электронную структуру Ce1-x 3+ Cex 4+ AlO3+x/2
Журнал неорганической химии. 2016. Т.61. №2. С.238–244. DOI: 10.7868/S0044457X16020173 РИНЦ
Влияние условий синтеза на кристаллическую, локальную и электронную структуру Ce1-x 3+ Cex 4+ AlO3+x/2
Журнал неорганической химии. 2016. Т.61. №2. С.238–244. DOI: 10.7868/S0044457X16020173 РИНЦ
Dates:
Submitted: | Jun 7, 2017 |
Published print: | Apr 1, 2018 |
Published online: | Apr 23, 2018 |
Identifiers:
Web of science | WOS:000430658200012 |
Scopus | 2-s2.0-85047806977 |
Elibrary | 35498127 |
Chemical Abstracts | 2018:819494 |
OpenAlex | W2799454609 |