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Article

Precise Catalyst Production for Carbon Nanotube Synthesis with Targeted Structure Enrichment

Department of Engineering, University of Cambridge, Cambridge CB2 1PZ, UK
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Author to whom correspondence should be addressed.
Catalysts 2020, 10(9), 1087; https://doi.org/10.3390/catal10091087
Received: 20 August 2020 / Revised: 15 September 2020 / Accepted: 16 September 2020 / Published: 19 September 2020
The direct growth of single-walled carbon nanotubes (SWCNTs) with a narrow distribution of diameter or chirality remains elusive despite significant benefits in properties and applications. Nanoparticle catalysts are vital for SWCNT synthesis, but how to precisely manipulate their chemistry, size, concentration, and deposition remains difficult, especially within a continuous production process from the gas phase. Here, we demonstrate the preparation of W6Co7 alloyed nanoparticle catalysts with precisely tunable stoichiometry using electrospray, which remain solid state during SWCNT growth. We also demonstrate continuous production of liquid iron nanoparticles with in-line size selection. With the precise size manipulation of catalysts in the range of 1–5 nm, and a nearly monodisperse distribution (σg < 1.2), an excellent size selection of SWCNTs can be achieved. All of the presented techniques show great potential to facilitate the realization of single-chirality SWCNTs production. View Full-Text
Keywords: carbon nanotube; catalyst; alloy; nanoparticle; electrospray carbon nanotube; catalyst; alloy; nanoparticle; electrospray
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MDPI and ACS Style

Zhang, X.; Deng, Y.; Graves, B.; De Volder, M.; Boies, A. Precise Catalyst Production for Carbon Nanotube Synthesis with Targeted Structure Enrichment. Catalysts 2020, 10, 1087. https://doi.org/10.3390/catal10091087

AMA Style

Zhang X, Deng Y, Graves B, De Volder M, Boies A. Precise Catalyst Production for Carbon Nanotube Synthesis with Targeted Structure Enrichment. Catalysts. 2020; 10(9):1087. https://doi.org/10.3390/catal10091087

Chicago/Turabian Style

Zhang, Xiao, Ying Deng, Brian Graves, Michael De Volder, and Adam Boies. 2020. "Precise Catalyst Production for Carbon Nanotube Synthesis with Targeted Structure Enrichment" Catalysts 10, no. 9: 1087. https://doi.org/10.3390/catal10091087

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