What does this research mean for the field?

The addition of sulfur during single-walled carbon nanotube (SWCNT) growth passivates the Fe catalyst surface, creating distinct carbon-rich regions that dictate the nucleation and growth of smaller SWCNTs, while excessive sulfur poisons the catalyst. Novelty: ClaimNovelty.NOVEL_FINDING. Consensus alignment: ConsensusAlignment.SUPPORTS_CONSENSUS.

What question did this study set out to answer?

To investigate how sulfur affects the growth of single-walled carbon nanotubes (SWCNTs) using computational methods.

April 10, 2026ACS Nano

The Role of Sulfur in Single-Walled Carbon Nanotube Growth

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Authors

HAHao An CQCheng Qian LDLiping Ding

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Overview

Explores sulfur's impact on single-walled carbon nanotube formation, suggesting new synthetic strategies.

Key Points

To investigate how sulfur affects the growth of single-walled carbon nanotubes (SWCNTs) using computational methods.
Employed machine learning force field (MLFF)-based molecular dynamics (MD) simulations.
Conducted studies on Fe catalyst particles with varying sulfur contents.
Analyzed carbon adsorption and SWCNT nucleation processes on sulfur-passivated Fe clusters.
SWCNTs were successfully grown with varying sulfur levels on Fe catalysts.
Sulfur atoms passivated Fe cluster surfaces, decreasing activity for carbon adsorption.
Increased sulfur led to smaller carbon-rich regions, resulting in smaller SWCNTs.
An excessive amount of sulfur negatively impacted catalyst effectiveness.

Cite This Study

An et al. (2026) studied this question.

synapsesocial.com/papers/69d894ec6c1944d70ce05ce8 https://doi.org/10.1021/acsnano.5c13470

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April 10, 2026ACS Nano

The Role of Sulfur in Single-Walled Carbon Nanotube Growth

View Full Paper

Ask AI

Bookmark

Authors

HAHao An CQCheng Qian LDLiping Ding

Discussion

Member takes

Overview

Explores sulfur's impact on single-walled carbon nanotube formation, suggesting new synthetic strategies.

Key Points

To investigate how sulfur affects the growth of single-walled carbon nanotubes (SWCNTs) using computational methods.
Employed machine learning force field (MLFF)-based molecular dynamics (MD) simulations.
Conducted studies on Fe catalyst particles with varying sulfur contents.
Analyzed carbon adsorption and SWCNT nucleation processes on sulfur-passivated Fe clusters.
SWCNTs were successfully grown with varying sulfur levels on Fe catalysts.
Sulfur atoms passivated Fe cluster surfaces, decreasing activity for carbon adsorption.
Increased sulfur led to smaller carbon-rich regions, resulting in smaller SWCNTs.
An excessive amount of sulfur negatively impacted catalyst effectiveness.

Cite This Study

An et al. (2026) studied this question.

synapsesocial.com/papers/69d894ec6c1944d70ce05ce8 https://doi.org/10.1021/acsnano.5c13470

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