Anchorage of γ-Al₂O₃ nanoparticles on nitrogen-doped multiwalled carbon nanotubes

Journal Article · 07 June 2016 · Scripta Materialia

DOI: https://doi.org/10.1016/j.scriptamat.2016.03.012 · OSTI ID:1325491

Rodríguez-Pulido, A. ^[1]; Martínez-Gutiérrez, H. ^[2]; Calderon-Polania, G. A. ^[3]; Lozano, M. A. Gonzalez ^[4]; Cullen, D. A. ^[5]; Terrones, H. ^[6]; Smith, D. J. ^[7]; Terrones, M. ^[8]

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1. Univ. Autonoma del Noreste, Coahuila (Mexico); Univ. Juarez del Estado de Durango, Durango (Mexico)
2. CNMN, Instituto Politecnico Nacional, IPN, Unidad Zacatenco, D.F. (Mexico)
3. Univ. Autonoma del Noreste, Coahuila (Mexico)
4. Univ. Juarez del Estado de Durango, Durango (Mexico)
5. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
6. Rennsselaer Polytechnic Institute, Troy, NY (United States)
7. Arizona State Univ., Tempe, AZ (United States)
8. The Pennsylvania State Univ., University Park, PA (United States)

Nitrogen-doped multiwalled carbon nanotubes (CNx-MWNTs) have been decorated with γ-Al₂O₃ nanoparticles by a novel method. This process involved a wet chemical approach in conjunction with thermal treatment. During the particle anchoring process, individual CNx-MWNT nanotubes agglomerated into bundles, resulting in arrays of aligned CNx-MWNT coated with γ-Al₂O₃. Extensive characterization of the resulting γ-Al₂O₃/CNx-MWNT bundles was performed using a range of electron microscopy imaging and microanalytical techniques. In conclusion, a possible mechanism explaining the nanobundle alignment is described, and possible applications of these materials for the fabrication of ceramic composites using CNx-MWNTs are briefly discussed.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE
• Grant/Contract Number: AC05-00OR22725
• OSTI ID: 1325491
• Journal Information: Scripta Materialia, Vol. 123, Issue C; ISSN 1359-6462
• Publisher: ElsevierCopyright Statement
• Country of Publication: United States
• Language: English