Surface Dynamics of Mixed Silver-Copper Oxide AgCuO2 During X-Ray Photoelectron Spectroscopy Study Научная публикация
| Журнал |
Applied Surface Science
ISSN: 0169-4332 |
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| Вых. Данные | Год: 2019, Том: 463, Страницы: 300-309 Страниц : 10 DOI: 10.1016/j.apsusc.2018.08.234 | ||||
| Ключевые слова | Mixed silver-copper oxide; AgCuO2; Ag2Cu2O; 4XPS; Synchrotron radiation; High-valent copper | ||||
| Авторы |
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| Организации |
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Информация о финансировании (1)
| 1 | Федеральное агентство научных организаций России | 0303-2016-0003 |
Реферат:
A detailed study of mixed silver-copper oxide AgCuO2 was performed using X-ray photoelectron spectroscopy. The state and ratio of elements on the surface at different probing depth was revealed using variable radiation energy. A non-uniform in-depth distribution of silver and copper states was established. Two silver states were detected on the initial surface: (1) highly oxidized Ag>1+ ions from AgCuO2 lattice and (2) impurity Ag0 metallic species. The appearance of metallic species was related to AgCuO2 surface reduction by adsorbed carbon admixtures during air-storage. It was shown that highly oxidized copper species can be identified by the analysis of shake-up satellites in Cu2p region during step-by-step exposure to X-rays. This approach, considering all spectral changes versus time, allowed us to reveal the presence of copper with the oxidation level higher than +2 on the initial AgCuO2 surface. It was found that a long-term exposure to intense X-rays significantly modifies the composition and state of the AgCuO2 surface. Possible causes of such modification are discussed in relation to the AgCuO2 reaction properties.
Библиографическая ссылка:
Svintsitskiy D.A.
, Kardash T.Y.
, Boronin A.I.
Surface Dynamics of Mixed Silver-Copper Oxide AgCuO2 During X-Ray Photoelectron Spectroscopy Study
Applied Surface Science. 2019. V.463. P.300-309. DOI: 10.1016/j.apsusc.2018.08.234 WOS Scopus РИНЦ CAPlusCA OpenAlex
Surface Dynamics of Mixed Silver-Copper Oxide AgCuO2 During X-Ray Photoelectron Spectroscopy Study
Applied Surface Science. 2019. V.463. P.300-309. DOI: 10.1016/j.apsusc.2018.08.234 WOS Scopus РИНЦ CAPlusCA OpenAlex
Даты:
| Поступила в редакцию: | 5 июн. 2018 г. |
| Принята к публикации: | 27 авг. 2018 г. |
| Опубликована online: | 27 авг. 2018 г. |
| Опубликована в печати: | 1 янв. 2019 г. |
Идентификаторы БД:
| Web of science: | WOS:000452782100036 |
| Scopus: | 2-s2.0-85052447708 |
| РИНЦ: | 35771302 |
| Chemical Abstracts: | 2018:1643079 |
| Chemical Abstracts (print): | 169:403444 |
| OpenAlex: | W2889320302 |