Unusual Low Coordination Numbers in Ultradisperse MoS2 Научная публикация
Конференция |
10th National Synchrotron Radiation Conference 11-15 июл. 1994 , Новосибирск |
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Журнал |
Nuclear Instruments and Methods in Physics Research Section A
ISSN: 0168-9002 |
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Вых. Данные | Год: 1995, Том: 359, Номер: 1-2, Страницы: 254-256 Страниц : 3 DOI: 10.1016/0168-9002(94)01691-7 | ||
Ключевые слова | CATALYST; EXAFS | ||
Авторы |
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Организации |
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Информация о финансировании (1)
1 | Российский фонд фундаментальных исследований | 93-03-4819 |
Реферат:
The local structure of high dispersive MoS2 with an average size of about 30 Angstrom has been studied using EXAFS spectra measured at the MoK edge. The sample with the general formula MoS2+x was sintered by means of high temperature decomposition of MoS3. Coordination numbers for the first shell Mo-S (4.2) and the second shell Mo-Mo (2.8) less than one could be expected for small size particles. However, interatomic distances and Debye-Waller factors are the same as for the MoS2 polycrystalline sample. It is commonly considered that a decreased of the coordination numbers is due to sulfur nonstoichiometry in MoS2/Al2O3 catalysts. However, nonstoichiometry is absent in our sample. A possible reason for the decrease of the coordination numbers in this case may be the distortion of the outer layer of the particle, such that interatomic distances in this layer are not observed by EXAFS due to large Debye-Waller factors.
Библиографическая ссылка:
Kochubey D.I.
, Degtjarev S.P.
, Babenko V.P.
Unusual Low Coordination Numbers in Ultradisperse MoS2
Nuclear Instruments and Methods in Physics Research Section A. 1995. V.359. N1-2. P.254-256. DOI: 10.1016/0168-9002(94)01691-7 WOS Scopus РИНЦ
Unusual Low Coordination Numbers in Ultradisperse MoS2
Nuclear Instruments and Methods in Physics Research Section A. 1995. V.359. N1-2. P.254-256. DOI: 10.1016/0168-9002(94)01691-7 WOS Scopus РИНЦ
Даты:
Опубликована в печати: | 1 мая 1995 г. |
Опубликована online: | 23 февр. 2000 г. |
Идентификаторы БД:
Web of science | WOS:A1995QY84500063 |
Scopus | 2-s2.0-0011814959 |
РИНЦ | 30839148 |
Chemical Abstracts | 1995:539490 |
Chemical Abstracts (print) | 122:299781 |
OpenAlex | W2059346498 |