Antoine Combrisson
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Antoine Combrisson has a total of 4 co-authors. Here are the top co-authors by number of shared publications:
- Cecile Reynaud
CEA/CNRS, DSM/DRECAM/SPAM/LFP URA CNRS 2453, bat. 522, CEA Saclay, gif sur yvette, 91191, France
1 shared publication - Emeline Charon
CEA, CNRS, NIMBE, Université Paris Saclay
1 shared publication - Martine Mayne-L’hermite
Nanoscience et Innovation pour les Matériaux, la Biomédecine et l’Energie, Commissariat à l’Energie Atomique, Centre National de la Recherche Scientifique, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
1 shared publication - Mathieu Pinault
NIMBE, CEA, CNRS, Université Paris-Saclay, CEA Saclay 2 , 91191 Gif-sur-Yvette Cedex, France
1 shared publication
Latest Publications
- Open Access
- 7 July 2022
- Published by MDPI AG in Nanomaterials
- Vol. 12 (14) , 2338
Critical Role of the Acetylene Content and Fe/C Ratio on the Thickness and Density of Vertically Aligned Carbon Nanotubes Grown at Low Temperature by a One-Step Catalytic Chemical Vapor Deposition Process
The present work explores the role of the carbon source content and the Fe/C ratio on the synthesis of vertically aligned carbon nanotubes (VACNTs) by one-step aerosol-assisted CCVD operated at a medium temperature (615 °C) on aluminum substrates. The main objective was to overcome the limitations of VACNT growth, constituting a drawback for applications requiring thick VACNTs. By using acetylene as carbon feedstock and ferrocene as a catalyst precursor, we demonstrate that when acetylene content is reduced to 1.5 vol%, it is possible to grow VACNT carpets up to 700 µm thick while maintaining constant VACNT growth for a long duration (up to 160 min). The carbon conversion yield is significantly improved when the acetylene content reaches 1.5 vol%. The Al surface roughness also influences VACNT growth. An optimum Fe/C ratio of 0.8 wt.% coupled with a low acetylene content gives the highest growth rate (5.4 µm/min) ever reported for a thermal aerosol-assisted CCVD process operated at such a low temperature. The CNT number density can be controlled by varying the Fe/C ratio, enabling high density growth (e.g., 1.3 × 1011 CNT/cm2).
- 7 July 2022
- Published by MDPI AG in Nanomaterials
- Vol. 12 (14) , 2338
Open AccessCritical Role of the Acetylene Content and Fe/C Ratio on the Thickness and Density of Vertically Aligned Carbon Nanotubes Grown at Low Temperature by a One-Step Catalytic Chemical Vapor Deposition Process
The present work explores the role of the carbon source content and the Fe/C ratio on the synthesis of vertically aligned carbon nanotubes (VACNTs) by one-step aerosol-assisted CCVD operated at a medium temperature (615 °C) on aluminum substrates. The main objective was to overcome the limitations of VACNT growth, constituting a drawback for applications requiring thick VACNTs. By using acetylene as carbon feedstock and ferrocene as a catalyst precursor, we demonstrate that when acetylene content is reduced to 1.5 vol%, it is possible to grow VACNT carpets up to 700 µm thick while maintaining constant VACNT growth for a long duration (up to 160 min). The carbon conversion yield is significantly improved when the acetylene content reaches 1.5 vol%. The Al surface roughness also influences VACNT growth. An optimum Fe/C ratio of 0.8 wt.% coupled with a low acetylene content gives the highest growth rate (5.4 µm/min) ever reported for a thermal aerosol-assisted CCVD process operated at such a low temperature. The CNT number density can be controlled by varying the Fe/C ratio, enabling high density growth (e.g., 1.3 × 1011 CNT/cm2).