Preparation and Characterization of Carbon Nanotubes/Al2O3 Inorganic Hybrid Material - A Bio-Inspired Poly(Dopamine) Approach

Wen Zhao; Wen Cai Wang; Yong Lai Lu; Li Qun Zhang

doi:10.4028/www.scientific.net/JNanoR.54.127

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HomeJournal of Nano ResearchJournal of Nano Research Vol. 54Preparation and Characterization of Carbon...

Preparation and Characterization of Carbon Nanotubes/Al₂O₃ Inorganic Hybrid Material - A Bio-Inspired Poly(Dopamine) Approach

Abstract:

Carbon nanotubes/alumina (CNTs/Al₂O₃) nanocomposites were prepared by the poly (dopamine) assisted chemical liquid phase deposition (CLPD). The poly (dopamine) layers were firstly coated on the CNTs surface uniformly by the self-oxidative polymerization of dopamine in mild aqueous solution and then the Al₂O₃ nanoparticles formed on the poly (dopamine) coated CNTs surface by the CLPD. The hydrophilic poly (dopamine) layers on the CNTs surface can improve the dispersion of CNTs in aqueous solution. Moreover, it can be used as a key linker between the CNTs and Al₂O₃ because of the nitrogen-containing group in poly (dopamine) could coordinate with Al³⁺ ions. The as-prepared poly (dopamine) coated CNTs and CNTs/Al₂O₃ nanohybrids were characterized by X-ray photoelectron spectroscopy (XPS), X-radial diffractometer (XRD) and high resolution transmission electron microscopy (HRTEM). These results showed that the poly (dopamine) layers were coated on the surface of CNTs uniformly, and the Al₂O₃ nanoparticles embellished with the poly (dopamine) coated CNTs surface. Compared with pristine NR composites, the thermal conductivity of the as-prepared NR/CNTs@Al₂O₃ composites increased 17%.

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Journal of Nano Research (Volume 54)

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127-135

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https://doi.org/10.4028/www.scientific.net/JNanoR.54.127

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August 2018

Authors:

Wen Zhao*, Wen Cai Wang, Yong Lai Lu, Li Qun Zhang

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Al₂O₃, Carbon Nanotube, Dopamine, Hybrid Material

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