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Effect of Carbon Coating on Spontaneous C12A7 Whisker Formation Научная публикация

Журнал Applied Surface Science
ISSN: 0169-4332
Вых. Данные Год: 2018, Том: 444, Страницы: 336-338 Страниц : 3 DOI: 10.1016/j.apsusc.2018.03.056
Ключевые слова Calcium aluminate, Carbon nanoreactor, HRTEM, Structured carbon layers, Whiskers
Авторы Zaikovskii Vladimir I. 1,2 , Volodin Alexander M. 1 , Stoyanovskii Vladimir O. 1 , Cherepanova Svetlana V. 1,2 , Vedyagin Aleksey A. 1,3
Организации
1 Boreskov Institute of Catalysis SB RAS, Novosibirsk 630090, Russia
2 Novosibirsk State University, Novosibirsk 630090, Russia
3 National Research Tomsk Polytechnic University, Tomsk 634050, Russia

Информация о финансировании (1)

1 Российский научный фонд 16-13-10168

Реферат: A carbon nanoreactor concept was applied to study the stabilization effect of carbon shell on phase composition and morphology of dodecacalcium hepta-aluminate Ca12Al14O33. The starting C12A7 powder was obtained using aluminum and calcium hydroxides as precursors. Carbon shell was formed by a chemical vapor deposition of divinyl at 550°C. After the calcination at 1400 °C, the product was characterized by X-ray diffraction analysis (XRD) and high resolution transmission electron microscopy (HRTEM). It was observed for a first time that spontaneous formation of calcium aluminate whiskers take place under the conditions described. Each whisker consists of a ‘head’ (globular particle of 0.5 microns in diameter) and a ‘tail’ (prolonged whisker of few microns in length and 0.1–0.2 microns in diameter). According to HRTEM, the ‘head’ is characterized with microcrystal lattice of Ca12Al14O33 compound. XRD data show the presence of CaAl2O4 phase traces. The ‘head’ and ‘tail’ of the whisker are covered with structured graphene layers of 10nm and 3nm, correspondingly.
Библиографическая ссылка: Zaikovskii V.I. , Volodin A.M. , Stoyanovskii V.O. , Cherepanova S.V. , Vedyagin A.A.
Effect of Carbon Coating on Spontaneous C12A7 Whisker Formation
Applied Surface Science. 2018. V.444. P.336-338. DOI: 10.1016/j.apsusc.2018.03.056 WOS Scopus РИНЦ CAPlusCA OpenAlex
Даты:
Поступила в редакцию: 18 окт. 2017 г.
Принята к публикации: 8 мар. 2018 г.
Опубликована online: 9 мар. 2018 г.
Опубликована в печати: 1 июн. 2018 г.
Идентификаторы БД:
Web of science: WOS:000429343200040
Scopus: 2-s2.0-85043595331
РИНЦ: 35544752
Chemical Abstracts: 2018:475095
Chemical Abstracts (print): 168:379816
OpenAlex: W2789826034
Цитирование в БД:
БД Цитирований
Web of science 8
Scopus 8
РИНЦ 9
OpenAlex 8
Альметрики: