Catalytically active nickel {110} surfaces in growth of carbon tubular structures

Autor:	MingHui Kuang, Xuedong Bai, J. D. Guo, Zhong Lin Wang, Enge Wang
Rok vydání:	2000
Předmět:	Materials science Physics and Astronomy (miscellaneous) Carbonization Inorganic chemistry Nucleation chemistry.chemical_element Chemical vapor deposition Carbon nanotube Catalysis law.invention Nickel Transition metal chemistry Chemical engineering law Carbon
Zdroj:	Applied Physics Letters. 76:1255-1257
ISSN:	1077-3118 0003-6951
DOI:	10.1063/1.126001
Popis:	Recent interest in the growth of aligned carbon nanotube films using transition metal catalysts has led to questions concerning the growth mechanism involved. In our experiment carbon tubules grown using Ni catalysts exhibit a preferred orientation relative to the catalytically active surfaces of Ni. The axial directions of the tubular structure are mainly parallel to the 〈110〉 and 〈042〉 directions of Ni. The faceted shape of the Ni particles determines the intrinsic structure of the tubules. A mechanism involving spiral growth is proposed to explain the nucleation and growth of such tubules.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b337afc3ff48a2862c5e29d9eec592d2 https://doi.org/10.1063/1.126001 Zobrazit plný text záznamu