Measurement of High Carbon Nanotube Growth Rate, Mass Production, Agglomeration, and Length in a Floating Catalyst Chemical Vapor Deposition Reactor.

ABSTRACT: The growth kinetics of carbon nanotubes (CNTs) and precursor pyrolysis mechanisms within floating catalyst chemical vapor deposition (FCCVD) reactors have remained opaque despite significant interest in the catalytic mechanisms, CNT growth, and aerogel formation. This study utilizes in situ characterization of reactants and CNTs to determine CNT growth kinetics. By modulating precursors, we avoid the formation of a CNT aerogel within the reactor, which enables direct sampling at independent axial locations of single and agglomerated CNTs and catalyst nanoparticles. Electron microscopy of the in situ sampled aerosols enables measurement of the length of the nanotubes within them and the extent of nanotube agglomeration. Concurrent real-time individual CNT and catalyst mass measurements via

SUBMITTER: Hussain S 

PROVIDER: S-EPMC11912582 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature