We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Bithiophene as a Sulfur-Based Promotor for the Synthesis of Carbon Nanotubes and Carbon-Carbon Composites.
- Authors
Bogdanova, Alisa R.; Krasnikov, Dmitry V.; Khabushev, Eldar M.; Ramirez B., Javier A.; Nasibulin, Albert G.
- Abstract
We assess bithiophene (C8H6S2) as a novel sulfur-based promotor for the growth of single-walled carbon nanotubes (SWCNTs) in the aerosol (floating catalyst) CVD method. Technologically suitable equilibrium vapor pressure and an excess of hydrocarbon residuals formed under its decomposition make bithiophene an attractive promoter for the production of carbon nanotubes in general and specifically for ferrocene-based SWCNT growth. Indeed, we detect a moderate enhancement in the carbon nanotube yield and a decrease in the equivalent sheet resistance of the films at a low bithiophene content, indicating the improvement of the product properties. Moreover, the relatively high concentrations and low temperature stability of bithiophene result in non-catalytical decomposition, leading to the formation of pyrolytic carbon deposits; the deposits appear as few-layer graphene structures. Thus, bithiophene pyrolysis opens a route for the cheap production of hierarchical composite thin films comprising carbon nanotubes and few-layer graphene, which might be of practical use for hierarchical adsorbents, protective membranes, or electrocatalysis.
- Subjects
CARBON nanotubes; PYROLYTIC graphite; THIOPHENES; CARBON films; POLYTHIOPHENES; VAPOR pressure; THIN films; PRODUCT improvement
- Publication
International Journal of Molecular Sciences, 2023, Vol 24, Issue 7, p6686
- ISSN
1661-6596
- Publication type
Article
- DOI
10.3390/ijms24076686