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Evolution in Catalyst Morphology Leads to Carbon Nanotube Growth Termination
Abstract
A mechanism by which catalyst deactivation occurs during vertically aligned single-walled carbon nanotube (SWNT) growth is demonstrated. We have used both quantitative measurements of nanotube growth rates and ex situ and in situ transmission electron microscopy observations to show that termination of carbon nanotube (CNT) array growth can be intrinsically linked to evolution of the catalyst morphology. Specifically, we find that a combination of both Ostwald ripening and subsequent subsurface diffusion leads to loss of the Fe catalyst, and through direct observations, we correlate this with nanotube growth termination. These observations indicate that careful design of the catalyst and its support − as well as the interaction between the two − is required to maximize nanotube yields.
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Cited by
Rao, R., Pint, C. L., Islam, A. E., Weatherup, R. S., Hofmann, S., Meshot, E. R., Wu, F., Zhou, C., Dee, N., Amama, P. B., et al. (2018) · ACS Nano · doi:10.1021/acsnano.8b06511 · Cited by 588
Self-citationCarbon Nanotube Mass Production: Principles and Processes
Zhang, Q., Huang, J., Zhao, M., Qian, W., & Wei, F. (2011) · ChemSusChem · doi:10.1002/cssc.201100177 · Cited by 389
Metadata
- Authors
- Kim, S. M., Pint, C. L., Amama, P. B., Zakharov, D. N., Hauge, R. H., Maruyama, B., & Stach, E. A.
- Venue
- The Journal of Physical Chemistry Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2010-02-22
- Volume
- 1
- Issue
- 6
- Pages
- 918-922
- ISSN
- 1948-7185 (ISSN-L)
- OpenAlex
- W2049133696
- Cited by
- 209
- References
- 0
- FWCI
- 7.88
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: Evolution in Catalyst Morphology Leads to Carbon Nanotube Growth Termination. https://app.cochat.ai/papers/10.1021/jz9004762
- The paper
- Kim, S. M., Pint, C. L., Amama, P. B., Zakharov, D. N., Hauge, R. H., Maruyama, B., & Stach, E. A. (2010). Evolution in Catalyst Morphology Leads to Carbon Nanotube Growth Termination. The Journal of Physical Chemistry Letters. https://doi.org/10.1021/jz9004762
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
