Can single-walled carbon nanotube diameter be defined by catalyst particle diameter?

ABSTRACT: The need of designing and controlling single-walled carbon nanotube (SWCNT) properties is a challenge in a growing nanomaterials-related industry. Recently, great progress has been made experimentally to selectively control SWCNT diameter and chirality. However, there is not yet a complete understanding of the synthesis process and there is a lack of mathematical models that explain nucleation and diameter selectivity of stable carbon allotropes. Here, in-situ analysis of chemical vapor deposition SWCNT synthesis confirms that the nanoparticle to nanotube diameter ratio varies with the catalyst particle size. It is found that the tube diameter is larger than that of the particle below a specific size (d_c ≈ 2nm) and above this value is smaller than particle diameters. To e

SUBMITTER: Diaz MC 

PROVIDER: S-EPMC7537549 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature