XAFS Study of an Intermetallic TiFe0.95Zr0.03Mo0.02 System for CO2 Conversion Научная публикация
Конференция |
3rd International Conference on Synchrotron Radiation in Materials Science 21-24 янв. 2002 , Singapore |
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Журнал |
Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
ISSN: 0168-583X |
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Вых. Данные | Год: 2003, Том: 199, Страницы: 216-221 Страниц : 6 DOI: 10.1016/S0168-583X(02)01577-X | ||||||||
Ключевые слова | Distortion, Intermetallic compound, XAFS | ||||||||
Авторы |
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Организации |
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Информация о финансировании (2)
1 | Российский фонд фундаментальных исследований | 00-03-32407 |
2 | North Atlantic Treaty Organization | EST.CLG 977957 |
Реферат:
An intermetallic TiFe0.95Zr0.03Mo0.02 system used for CO2 conversion was studied by XAFS spectroscopy. The initial samples prepared by the skull-furnace method were exposed to the below treatments: (1) H2 absorption (up to ∼1 mol of H2 per 1 mol of the initial sample); (2) H2 thermal desorption (up to ∼0.18 mol of H2 at 180 °C in inert argon atmosphere); (3) hydrogen titration by CO2 (at 350 °C for 4–6 h). For samples [TiFe0.95Zr0.03Mo0.02]H2x (x⩽0.18), the position of Ti-K edge shifts of about ∼3 eV compared to that of the initial sample. From the XAFS studies of the modified [TiFe0.95Zr0.03Mo0.02] intermetallide, it is established that the interaction of dissolved hydrogen and titanium follows the donor–acceptor mechanism. Hydrogen atoms are located on the straight line connecting two titanium atoms. The one distance between a hydrogen atom and a titanium atom is less than 1.5 Å. It is proposed that the effect of strong binding of hydrogen in the [TiFe0.95Zr0.03Mo0.02]H2x intermetallide at a molar concentration of absorbed hydrogen of 0.18 is associated with the formation of such binding.
Библиографическая ссылка:
Kriventsov V.V.
, Kochubey D.I.
, Tsodikov M.V.
, Navío J.A.
, Hidalgo M.C.
, Colón G.
, Maksimov Y.V.
, Suzdalev I.P.
XAFS Study of an Intermetallic TiFe0.95Zr0.03Mo0.02 System for CO2 Conversion
Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms. 2003. V.199. P.216-221. DOI: 10.1016/S0168-583X(02)01577-X WOS Scopus РИНЦ
XAFS Study of an Intermetallic TiFe0.95Zr0.03Mo0.02 System for CO2 Conversion
Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms. 2003. V.199. P.216-221. DOI: 10.1016/S0168-583X(02)01577-X WOS Scopus РИНЦ
Даты:
Опубликована online: | 22 окт. 2002 г. |
Опубликована в печати: | 1 янв. 2003 г. |
Идентификаторы БД:
Web of science | WOS:000180925400043 |
Scopus | 2-s2.0-0037244164 |
РИНЦ | 13436498 |
Chemical Abstracts | 2003:50784 |
Chemical Abstracts (print) | 138:276877 |
OpenAlex | W2050332186 |