Systematic investigation of the catalyst composition effects on single-walled carbon nanotubes synthesis in floating-catalyst CVD

Ahmad, Saeed; Liao, Yongping; Hussain, Aqeel; Zhang, Qiang; Ding, Er‐Xiong; Jiang, Hua; Kauppinen, Esko I.

doi:10.1016/j.carbon.2019.04.026

Cited by 58 publications

(54 citation statements)

References 37 publications

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“…Interestingly, we found that the mean diameter of as-produced SWCNTs (~1 nm) is independent of catalyst composition under the similar NSD of catalyst particles. However, the yield, morphology and SWCNTs film conductivity can be effectively tuned by changing catalyst composition [11]. Furthermore, from the unambiguous electron diffraction technique, we observed that the bimetallic Co-Ni catalyst can produce comparatively narrower chirality and diameter distribution of SWCNTs.…”

Section: Introductionmentioning

confidence: 93%

Section: ) a Typical Sem Image Of Swcnts Bundles On Si/sio2 Substratementioning

confidence: 99%

“…71% of Co SWCNTs lie in the diameter range from 0.9-1.2 nm with 15% enriched with (9,8), (11,5) and (9,7) chiralities. Some specific chiralities, such as (8, 1), (8, 2), (7,4), (21,2) and (17,11) etc. having comparatively small or big diameter, were disappeared when we used Co as a catalyst.…”

Section: Tuning Chirality Of Swcnts With Catalyst Compositionmentioning

confidence: 99%

Section: Tuning Chirality Of Swcnts With Catalyst Compositionmentioning

confidence: 99%

Section: Swcnt-tcfs Performance and Catalyst Compositionmentioning

confidence: 99%

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Roles of sulfur in floating-catalyst CVD growth of single-walled carbon nanotubes for transparent conductive film applications

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Ding

Zhang

et al. 2019

Chemical Engineering Journal

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Section: Introductionmentioning

confidence: 93%

Section: ) a Typical Sem Image Of Swcnts Bundles On Si/sio2 Substratementioning

confidence: 99%

Section: Tuning Chirality Of Swcnts With Catalyst Compositionmentioning

confidence: 99%

Section: Tuning Chirality Of Swcnts With Catalyst Compositionmentioning

confidence: 99%

Section: Swcnt-tcfs Performance and Catalyst Compositionmentioning

confidence: 99%

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Roles of sulfur in floating-catalyst CVD growth of single-walled carbon nanotubes for transparent conductive film applications

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Preparation of Carbon Allotropes Using Different Methods

Dagdag

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Kim

et al. 2023

Carbon Allotropes and Composites

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Hybrid Low‐Dimensional Carbon Allotropes Formed in Gas Phase

Ahmad

Mustonen

McLean

et al. 2020

Adv Funct Materials

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Graphene, carbon nanotubes (CNTs) and fullerenes are the basic set of low-dimensional carbon allotropes. The latter two arise from the former by selective removal and addition of carbon atoms. Nevertheless, given their morphological disparities, the production of each is typically devised from entirely different starting points. Here, it is demonstrated that all three allotropes can nucleate from (pseudo-)spherical, nanometer-sized transition metal clusters in a gas-suspension when the chemical conditions are favorable. The experimental results indicate that graphitic carbon embryos nucleate on the catalyst particles and sometimes transform into 2D graphene flakes through chain polymerization of carbon fragments forming in the surround gas atmosphere. It is further shown that hydrogenation reactions play an essential role by stabilizing the emerging flakes by mitigating the pentagon and heptagon defects that lead into evolution of fulleroids. Ab initio molecular dynamics simulations show that the ratio of hydrogen to carbon in the reaction is a key growth parameter. Since structural formation takes place in a gas-suspension, graphene accompanied by fullerenes and singlewalled CNTs can be deposited on any surface at ambient temperature with arbitrary layer thicknesses. This provides a direct route for the production and deposition of graphene-based hybrid thin films for various applications.

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Systematic investigation of the catalyst composition effects on single-walled carbon nanotubes synthesis in floating-catalyst CVD

Abstract: Systematic investigation of the catalyst composition effects on single-walled carbon nanotubes synthesis in floating-catalyst CVD, Carbon (2019), doi:

Cited by 58 publications

References 37 publications

Roles of sulfur in floating-catalyst CVD growth of single-walled carbon nanotubes for transparent conductive film applications

Roles of sulfur in floating-catalyst CVD growth of single-walled carbon nanotubes for transparent conductive film applications

Preparation of Carbon Allotropes Using Different Methods

Hybrid Low‐Dimensional Carbon Allotropes Formed in Gas Phase

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