Artículo
Zilli, D.; Bonelli, P.R.; Gommes, C.J.; Blacher, S.; Pirard, J.-P.; Cukierman, A.L. "Krypton adsorption as a suitable tool for surface characterization of multi-walled CNTs" (2011) Carbon. 49(3):980-985
Estamos trabajando para incorporar este artículo al repositorio
Consulte la política de Acceso Abierto del editor
Abstract:
Multi-walled carbon nanotubes (CNTs), pristine and subjected to treatments, are comparatively characterized from N2 and Kr (77 K) adsorption measurements. The CNTs are lab-synthesized by in situ chemical vapour deposition of an iron-based organometallic compound at 895 °C. The treatments applied to the CNTs include low temperature gas-phase oxidation, mild temperature annealing and ultrasonic dispersion in ethanol, in an attempt to examine possible changes in adsorption characteristics. N2 and Kr adsorption measurements give rise to steadily increasing and stepped isotherms, respectively. The former are representative of a multilayer adsorption phenomenon, while the latter indicate successive monolayer condensation. The treatments affect differently gas adsorption capacities of the CNTs. Oxidation leads to CNTs with higher BET specific surface area and increased adsorption capacity, though the effect is more pronounced for Kr adsorption. Ultrasonic dispersion of the CNT brings about a significant reduction only in N2 adsorption capacity. Modifications in the characteristic steps in Kr adsorption isotherms of the CNTs subjected to annealing can be appreciated, although no remarkable changes are observed in N2 adsorption isotherms. Present results demonstrate that determination of Kr adsorption isotherms represents a more suitable tool to obtain a more reliable textural characterization of CNTs than does N2 adsorption. © 2010 Elsevier Ltd. All rights reserved.
Registro:
| Documento: | Artículo |
| Título: | Krypton adsorption as a suitable tool for surface characterization of multi-walled CNTs |
| Autor: | Zilli, D.; Bonelli, P.R.; Gommes, C.J.; Blacher, S.; Pirard, J.-P.; Cukierman, A.L. |
| Filiación: | PINMATE - Depto Industrias, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Int. Güiraldes 2620, (C1428BGA) Buenos Aires, Argentina Department of Chemical Engineering, University of Liège, B6a, Allée du 6 août 3, B-4000 Liège, Belgium Cátedra Farmacotecnia II, Depto Tecnología Farmacéutica, Universidad de Buenos Aires, Junín 956, (C1113AAD) Buenos Aires, Argentina |
| Palabras clave: | Adsorption capacities; Adsorption characteristic; Adsorption measurement; BET specific surface area; Chemical vapour deposition; Gas adsorption capacity; Gas phase oxidation; In-situ; Iron-based; Kr adsorption; Low temperatures; Mild temperatures; Multi-walled; Multilayer adsorption; Organometallic compounds; Surface characterization; Textural characterization; Adsorption isotherms; Chemical vapor deposition; Ethanol; Gas adsorption; Knowledge based systems; Monolayers; Multiwalled carbon nanotubes (MWCN); Organometallics; Oxidation; Ultrasonic dispersion; Ultrasonics; Krypton |
| Año: | 2011 |
| Volumen: | 49 |
| Número: | 3 |
| Página de inicio: | 980 |
| Página de fin: | 985 |
| DOI: | http://dx.doi.org/10.1016/j.carbon.2010.09.065 |
| Título revista: | Carbon |
| Título revista abreviado: | Carbon |
| ISSN: | 00086223 |
| CODEN: | CRBNA |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00086223_v49_n3_p980_Zilli |
Referencias:
- Sayago, I., Terrado, E., Lafuente, E., Horrillo, M.C., Maser, W.K., Hydrogen sensors based on carbon nanotubes thin films (2005) Synth Met, 148, pp. 15-19
- Wang, Y., Cao, G., Developments in nanostructured cathode materials for high-performance lithium-ion batteries (2008) Adv Mat, 20, pp. 2251-2269
- Zhang, H., Cao, G., Yang, Y., Xu, B., Zhang, W., Novel carbon materials for electrochemical double layer capacitors and their applications (2008) Prog Chem, 20, pp. 1495-1500
- Zhang, H., Cao, G., Yang, Y., Carbon nanotube arrays and their composites for electrochemical capacitors and lithium-ion batteries (2009) Energy Environ Sci, 2, pp. 932-943
- Thomy, A., Matecki, M., Duval, X., Adsorption de krypton sur membranes et fibres de carbone (1971) Carbon, 9, pp. 587-592
- Li, Z., Pan, Z., Dai, S., Nitrogen adsorption characterization of aligned multiwalled carbon nanotubes and their acid modification (2004) J Colloid Interface Sci, 277, pp. 35-42
- Gommes, C.J., Noville, F., Bossout, C., Pirard, J.-P., Qualitative assessment of the purity of multi-walled carbon nanotube samples using krypton adsorption (2007) Stud Surf Sci Catal, 160, pp. 265-271
- Bera, D., Johnston, G., Heinrich, H., Seal, S., A parametric study on the synthesis of carbon nanotubes through arc-discharge in water (2006) Nanotechnology, 17, pp. 1722-1730
- Zilli, D.A., Bonelli, P.R., Cukierman, A.L., Effect of alignment on adsorption characteristics of self-oriented multi-walled carbon nanotube arrays (2006) Nanotechnology, 17, pp. 5136-5141
- Masenelli-Varlot, M., McRae, E., Dupont-Pavlovsky, N., Comparative adsorption of simple molecules on carbon nanotubes: Dependence of the adsorption properties on the nanotube morphology (2002) Appl Surf Sci, 196, pp. 209-215
- Gommes, C., Blacher, S., Dupont-Pavlovsky, N., Bossout, C., Lamy, M., Comparison of different methods for characterizing multi-walled carbon nanotubes (2004) Colloids Surf A, 241, pp. 155-164
- Zilli, D.A., Bonelli, P.R., Cukierman, A.L., Effect of synthesis conditions and sequential treatments (2008) Nanotechnology Research: New Nanostructures, Nanotubes and Nanofibers, pp. 197-225
- Xing, Y., Li, L., Chusuei, C.C., Hull, R.V., Sonochemical oxidation of multiwalled carbon nanotubes (2005) Langmuir, 21 (9), pp. 4185-4190. , DOI 10.1021/la047268e
- Ovejero, G., Sotelo, J.L., Romero, M.D., Rodríguez, A., Ocaña, M.A., Multiwalled carbon nanotubes for liquid-phase oxidation. Functionalization, characterization, and catalytic activity (2006) Ind Eng Chem Res, 45, pp. 2206-2212
- Gauden, P.A., Terzyk, A.P., Rychlicki, G., Kowalczyk, P., Lota, K., Thermodynamic properties of benzene adsorbed in activated carbons and multi-walled carbon nanotubes (2006) Chem Phys Lett, 421, pp. 409-414
- Gommes, C., Blacher, S., Pirard, J.-P., Nitrogen adsorption on silica xerogels or the odd look of a t plot (2005) Langmuir, 21, pp. 1703-1705
- Gregg, K.S.W., Singh, S.J., (1982) Adsorption, Surface Area and Porosity, , 2nd ed. Academic Press London
- Ravikovitch, P.I., Neimark, A.V., Density functional theory model of adsorption on amorphous and microporous silica materials (2006) Langmuir, 26, pp. 11171-11179
- Larher, Y., Angerand, F., Maurice, Y., Wetting of graphite (0 0 0 1) by carbon monoxide. A stepwise adsorption isotherm study (1987) J Chem Soc, Faraday Trans, 1, pp. 3355-3366
Citas:
---------- APA ----------
Zilli, D., Bonelli, P.R., Gommes, C.J., Blacher, S., Pirard, J.-P. & Cukierman, A.L. (2011) . Krypton adsorption as a suitable tool for surface characterization of multi-walled CNTs. Carbon, 49(3), 980-985.http://dx.doi.org/10.1016/j.carbon.2010.09.065
---------- CHICAGO ----------
Zilli, D., Bonelli, P.R., Gommes, C.J., Blacher, S., Pirard, J.-P., Cukierman, A.L. "Krypton adsorption as a suitable tool for surface characterization of multi-walled CNTs" . Carbon 49, no. 3 (2011) : 980-985.http://dx.doi.org/10.1016/j.carbon.2010.09.065
---------- MLA ----------
Zilli, D., Bonelli, P.R., Gommes, C.J., Blacher, S., Pirard, J.-P., Cukierman, A.L. "Krypton adsorption as a suitable tool for surface characterization of multi-walled CNTs" . Carbon, vol. 49, no. 3, 2011, pp. 980-985.http://dx.doi.org/10.1016/j.carbon.2010.09.065
---------- VANCOUVER ----------
Zilli, D., Bonelli, P.R., Gommes, C.J., Blacher, S., Pirard, J.-P., Cukierman, A.L. Krypton adsorption as a suitable tool for surface characterization of multi-walled CNTs. Carbon. 2011;49(3):980-985.http://dx.doi.org/10.1016/j.carbon.2010.09.065
