High Purity Single Wall Carbon Nanotube by Oxygen-Containing Functional Group of Ferrocene-Derived Catalyst Precursor by Floating Catalyst Chemical Vapor Deposition.

ABSTRACT: Single wall carbon nanotubes (SWCNTs) were synthesized using oxygen-containing ferrocene derived catalysts. The mechanism of synthesizing carbon nanotubes was clarified by the catalyst's exothermic or endothermic decomposition processes. By monitoring the decomposition process of ferrocene-derived catalyst precursors with and without sulfur, we found that the types of oxygen function groups closely influence catalyst formation and nanotube growth. The ferrocene-derived catalyst precursors have a different oxygen containing groups, which are hydroxyl (-OH, ferrocenenemethanol) and carbonyl (C=O, acetylferrocene, and 1,1'-diacetylferrocene). The sulfur chemical state (S 2p) on synthesized catalyst particles using acetylferrocene and 1,1'-diacetylferrocene has more sulfate (SO42-) than others

SUBMITTER: Moon SY 

PROVIDER: S-EPMC8912279 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature