Artículo
Claudia Marchi, M.; Acuña, J.J.S.; Figueroa, C.A. "Metal catalyst adsorption effects in the growth of carbon nanostructures on mesoporous material" (2012) Journal of Nanoscience and Nanotechnology. 12(8):6439-6444
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Abstract:
Mesoporous silica films were used as host for metal-based (Me = Fe, Co, Ni) nanoparticles via wet impregnation at pH = 5. A hydrogen ion beam was used to reduce the metallic oxide and hydroxides, previously detected by X-ray photoelectron spectroscopy, in metals. Chemical vapor deposition processes at three different conditions varying the acetylene-nitrogen proportion were performed on the mesoporous films decorated by different metal-based nanoparticles. The grown carbon nanostructures were characterized by high-resolution transmission electron microscopy and scanning electron microscopy. The ability to grow carbon nanostructures decreases in the following order: Fe > Co > Ni. When pure acetylene is used, iron allows to form graphene sheets around the metal catalyst like carbon nanocapsules, whereas cobalt allows to form structures that seem to be carbon nanotubes. Nitrogen leads to control the size and shape of carbon nanocapsules for iron catalyst and avoid the growth of such carbon nanotube-like structures for cobalt catalyst. Copyright © 2012 American Scientific Publishers.
Registro:
| Documento: | Artículo |
| Título: | Metal catalyst adsorption effects in the growth of carbon nanostructures on mesoporous material |
| Autor: | Claudia Marchi, M.; Acuña, J.J.S.; Figueroa, C.A. |
| Filiación: | Centro de Microscopías Avanzadas (Pab. I), INQUIMAE-DQIAQF (Pab. II), Ciudad Universitaria, Buenos Aires, C1428EHA, Argentina Laboratório Central de Microscopia Eletrônica, Universidade Federal de Florianópolis, Florianópolis, SC, 88010-970, Brazil Centro de Ciências Exatas e Tecnologia, Universidade de Caixas Do sul, Caxias Do sul, Caxias do Sul, RS, 95070-560, Brazil |
| Palabras clave: | Carbon Nanostructures; Mesoporous Films; Metal Catalyst; Adsorption effect; Carbon nanocapsules; Carbon Nanostructures; Chemical vapor deposition process; Cobalt Catalyst; Graphene sheets; Hydrogen ions; Iron catalyst; Mesoporous films; Mesoporous silica film; Metal catalyst; Metallic oxides; Size and shape; Wet impregnation; Acetylene; Adsorption; Carbon nanotubes; Catalysts; Chemical vapor deposition; Cobalt; Graphene; Hydrogen; Lighting; Mesoporous materials; Metal nanoparticles; Metals; Nanocapsules; Photoelectrons; Scanning electron microscopy; Transmission electron microscopy; X ray photoelectron spectroscopy; Carbon films |
| Año: | 2012 |
| Volumen: | 12 |
| Número: | 8 |
| Página de inicio: | 6439 |
| Página de fin: | 6444 |
| DOI: | http://dx.doi.org/10.1166/jnn.2012.6452 |
| Título revista: | Journal of Nanoscience and Nanotechnology |
| Título revista abreviado: | J. Nanosci. Nanotechnol. |
| ISSN: | 15334880 |
| CODEN: | JNNOA |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15334880_v12_n8_p6439_ClaudiaMarchi |
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Citas:
---------- APA ----------
Claudia Marchi, M., Acuña, J.J.S. & Figueroa, C.A. (2012) . Metal catalyst adsorption effects in the growth of carbon nanostructures on mesoporous material. Journal of Nanoscience and Nanotechnology, 12(8), 6439-6444.http://dx.doi.org/10.1166/jnn.2012.6452
---------- CHICAGO ----------
Claudia Marchi, M., Acuña, J.J.S., Figueroa, C.A. "Metal catalyst adsorption effects in the growth of carbon nanostructures on mesoporous material" . Journal of Nanoscience and Nanotechnology 12, no. 8 (2012) : 6439-6444.http://dx.doi.org/10.1166/jnn.2012.6452
---------- MLA ----------
Claudia Marchi, M., Acuña, J.J.S., Figueroa, C.A. "Metal catalyst adsorption effects in the growth of carbon nanostructures on mesoporous material" . Journal of Nanoscience and Nanotechnology, vol. 12, no. 8, 2012, pp. 6439-6444.http://dx.doi.org/10.1166/jnn.2012.6452
---------- VANCOUVER ----------
Claudia Marchi, M., Acuña, J.J.S., Figueroa, C.A. Metal catalyst adsorption effects in the growth of carbon nanostructures on mesoporous material. J. Nanosci. Nanotechnol. 2012;12(8):6439-6444.http://dx.doi.org/10.1166/jnn.2012.6452
