Multiple-wall carbon nanotubes obtained with mesoporous material decorated with caria-zirconia.
Date
2020
Journal Title
Journal ISSN
Volume Title
Publisher
Univesidsad Tecnológica Nacional
Abstract
In this work, Ceria-Zirconia on ordered Santa Barbara mesoporous silica (Ce-Zr-SBA-15), has been used
directly as a catalyst for the synthesis of carbon nanotubes (CNTs) through Chemical Vapor Deposition (CVD).
In addition to cerium oxide, it contains zirconium oxide nano crystallites, which act as catalysts for
carbon nanostructures. The catalytic performance of this material was evaluated for the decomposi- tion
of ethanol at 900 °C, with N2 flow. The carbon decomposed from absolute ethanol diffuses through the
surface of the nanostructured catalytic material and precipitates in the form of MWCNT structures, which
could be identified by X-ray diffraction (XRD), Scanning Electron Microscopy (SEM) and Transmission
Electron Microscopy (TEM), showing average diameters of 30–35 nm.
Description
Keywords
Carbon nanotubes, CVD, Synthesis, Characterization, Ce-Zr-SBA-15, Catalyst
Citation
Elsevier. Materials Letters. Materials Letter 283 (2021)128900.
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