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In-situ X-ray Photoelectron Spectroscopy Study of Catalyst−Support Interactions and Growth of Carbon Nanotube Forests
Abstract
We study catalyst support interactions during chemical vapor deposition of carbon nanotubes by in situ X-ray photoelectron spectroscopy over a wide range of pressures. We observe Fe 2+ and 3+ interface states for metallic Fe on Al 2 O 3 in the absence of measurable Al reduction. This support interaction is much stronger than that on SiO 2, and it restricts Fe surface mobility. The resulting much narrower Fe catalyst particle size distribution on Al 2 O 3 leads to a higher carbon nanotube nucleation density and a vertical nanotube alignment due to proximity effects. We record the growth kinetics of carbon nanotube forests by optical imaging to understand effects that contribute to growth termination.
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Citations
Cites
In situ Observations of Catalyst Dynamics during Surface-Bound Carbon Nanotube Nucleation
Hofmann, S., Sharma, R., Ducati, C., Du, G., Mattevi, C., Cepek, C., Cantoro, M., Pisana, S., Parvez, A., Cervantes-Sodi, F., et al. (2007) · Nano Letters · doi:10.1021/nl0624824 · Cited by 736
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Cited by
Schlögl, R. (2015) · Angewandte Chemie International Edition · doi:10.1002/anie.201410738 · Cited by 1,043
Shah, K. A., & Tali, B. A. (2016) · Materials Science in Semiconductor Processing · doi:10.1016/j.mssp.2015.08.013 · Cited by 622
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-citationRecent Progress on the Growth Mechanism of Carbon Nanotubes: A Review
Tessonnier, J., & Su, D. S. (2011) · ChemSusChem · doi:10.1002/cssc.201100175 · Cited by 431
Tian, X., Wang, Y., Zeng, Z., Dai, L., Xu, J., Cobb, K., Ke, L., Zou, R., Liu, Y., & Ruan, R. (2022) · Green Chemistry · doi:10.1039/d1gc04537g · Cited by 128
Metadata
- Authors
- Mattevi, C., Wirth, C. T., Hofmann, S., Blume, R., Cantoro, M., Ducati, C., Cepek, C., Knop-Gericke, A., Milne, S., Castellarin-Cudia, C., Dolafi, S., Goldoni, A., Schloegl, R., & Robertson, J.
- Venue
- The Journal of Physical Chemistry C
- Publisher
- American Chemical Society (ACS)
- Published
- 2008-07-22
- Volume
- 112
- Issue
- 32
- Pages
- 12207-12213
- ISSN
- 1932-7447 (ISSN-L)
- 1932-7455
- OpenAlex
- W1998447591
- Cited by
- 266
- References
- 1
- FWCI
- 9.26
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: In-situ X-ray Photoelectron Spectroscopy Study of Catalyst−Support Interactions and Growth of Carbon Nanotube Forests. https://app.cochat.ai/papers/10.1021/jp802474g
- The paper
- Mattevi, C., Wirth, C. T., Hofmann, S., Blume, R., Cantoro, M., Ducati, C., Cepek, C., Knop-Gericke, A., Milne, S., Castellarin-Cudia, C., Dolafi, S., Goldoni, A., Schloegl, R., & Robertson, J. (2008). In-situ X-ray Photoelectron Spectroscopy Study of Catalyst−Support Interactions and Growth of Carbon Nanotube Forests. The Journal of Physical Chemistry C. https://doi.org/10.1021/jp802474g
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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