Insights into chirality distributions of single-walled carbon nanotubes grown on different CoxMg1xO solid solutions

Maoshuai, H.; Jiang, H.; Kauppi, I.; V, F.P.; I, C.A.; D, O.E.; Cavalca, F.; B, W.J.; W, H.T.; Sainio, J.; Sairanen, E.; Lehtonen, J.; Kauppinen, E.I.

Статья опубликована в высокорейтинговом журнале

Информация о цитировании статьи получена из Web of Science, Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 11 августа 2015 г.

Авторы: Maoshuai He, Hua Jiang, Inkeri Kauppi, Fedotov Pavel V., Chernov Alexander I., Obraztsova Elena D., Filippo Cavalca, Wagner Jakob B., Hansen Thomas W., Jani Sainio, Emma Sairanen, Juha Lehtonen and Esko I.Kauppinen
Журнал: Journal of Materials Chemistry A
Том: 2
Год издания: 2014
Издательство: Royal Society of Chemistry
Местоположение издательства: United Kingdom
Первая страница: 5883
Последняя страница: 5889
DOI: 10.1039/c3ta15325h
Аннотация: Low-temperature chemical vapor deposition (CVD) growth of single-walled carbon nanotubes (SWNTs) was achieved on two different types of CoxMg1xO catalysts prepared by different techniques: atomic layer deposition (ALD) and impregnation. The chirality distribution of SWNTs grown on the ALD-prepared CoxMg1xO catalyst is wider than that of SWNTs grown on the impregnation-prepared CoxMg1xO catalyst. The different chirality distributions of SWNTs are related to their different growth modes. The ALD-prepared CoxMg1xO catalyzes the growth of SWNTs by “tip growth” mode, as revealed by in situ environmental transmission electron microscopy studies. In contrast, SWNTs grow on the impregnation prepared CoxMg1xO by “base growth” mode. “Base growth” is attributed to strong metal–support interactions between the epitaxially formed Co nanoparticles and the underlying MgO support, accounting for the synthesis of SWNTs with high chiral-selectivity. In addition, impregnation-prepared CoxMg1xO catalysts calcinated at different temperatures were systematically studied and their catalytic performances in synthesizing carbon nanotubes were elucidated. This work illustrates the influence of metal–support interactions and catalyst reducibility on the chirality-distribution of the synthesized SWNTs.
Добавил в систему: Образцова Елена Дмитриевна

	ИСТИНА	Войти в систему Регистрация
	ИСТИНА ИНХС РАН
	Главная Поиск Статистика О проекте Помощь

ИСТИНА

ИСТИНА ИНХС РАН

Insights into chirality distributions of single-walled carbon nanotubes grown on different CoxMg1xO solid solutionsстатья

Прикрепленные файлы