A cyclic catalyst pretreatment in C[O.sub.2] for high yield production of carbon nanofibers with narrow diameter distribution

This paper presents a cyclic catalyst pretreatment process to improve the CNF yield with narrow size distribution by sequentially feeding the CVD reactor with C[H.sub.4]/C[O.sub.2] mixtures (carbon deposition) and C[O.sub.2] (carbon removal) prior to the actual growth process. A mechanism based on a...

Celý popis

Uloženo v:
Podrobná bibliografie
Vydáno v:Catalysis letters Ročník 141; číslo 11; s. 1621 - 1624
Hlavní autoři: Corthals, Steven, Van Noyen, Jasper, Liang, Duoduo, Ke, Xiaoxing, Van Tendeloo, Gustaaf, Jacobs, Pierre, Sels, Bert
Médium: Journal Article
Jazyk:angličtina
Vydáno: Springer 01.11.2011
Témata:
Chemical vapor deposition
Trucking
ISSN:1011-372X
On-line přístup:Získat plný text
Tagy: Přidat tag
Žádné tagy, Buďte první, kdo vytvoří štítek k tomuto záznamu!
Popis
Shrnutí:This paper presents a cyclic catalyst pretreatment process to improve the CNF yield with narrow size distribution by sequentially feeding the CVD reactor with C[H.sub.4]/C[O.sub.2] mixtures (carbon deposition) and C[O.sub.2] (carbon removal) prior to the actual growth process. A mechanism based on a break-up of large Ni particles tentatively explains the beneficial effect of the cyclic carbon deposition/removal CVD procedure.
ISSN:1011-372X
DOI:10.1007/s10562-011-0690-3