Electrical conductivity of carbon nanotubes grown inside a mesoporous anodic aluminium oxide membrane

Autor: Maria Sabrina Sarto, Lucien Datas, Maria Sarno, Roberto Pantani, Paolo Ciambelli, Laurent Arurault, Sandra Fontorbes, Alessio Tamburrano
Přispěvatelé: Department of Industrial Engineering [Salerno] ( ), Università degli Studi di Salerno (UNISA), Department of Fundamental and Applied Sciences for Engineering [Rome], Università degli Studi di Roma 'La Sapienza' = Sapienza University [Rome], Centre interuniversitaire de recherche et d'ingenierie des matériaux (CIRIMAT), Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Institut de Chimie du CNRS (INC), Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - INPT (FRANCE), Università di Roma - SAPIENZA (ITALY), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Università degli Studi di Salerno - UniSa (ITALY), Centre Interuniversitaire de Recherche et d'Ingénierie des Matériaux - CIRIMAT (Toulouse, France), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Jazyk: angličtina
Rok vydání: 2013
Předmět:
Zdroj: Carbon
Carbon, Elsevier, 2013, vol. 55, pp. 10-22. ⟨10.1016/j.carbon.2012.10.063⟩
ISSN: 0008-6223
Popis: International audience; Well-aligned, open-ended carbon nanotubes (CNTs), free of catalyst and other carbon products, were synthesized inside the pores of an anodic aluminium oxide (AO) template without using any metallic catalyst. The CNTs and the CNT/AO composites were characterizedby scanning and transmission electron microscopy, thermogravimetric analysis, Ramanspectroscopy and X-ray diffraction. Particular care was devoted to the reactor design, synthesis conditions, the catalytic role of the templating alumina surface and the preservation of the alumina structure. The transport properties (sorption, diffusion and permeability) to water vapor were evaluated for both the alumina template and the CNT/AO composite membrane. The measured effective electrical volume conductivity of the CNT/AO composite was found ranging from a few up to 10 kS/m, in line with the recent literature. The estimated averaged values of the CNTs-wall conductivity was around 50 kS/m.
Databáze: OpenAIRE