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Issue 26, 2017
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Halloysite nanotubes as support for metal-based catalysts

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Abstract

Halloysite nanotubes (HNTs) are clay minerals with a hollow nanotubular structure. There is growing interest in these nanomaterials, due to their biocompatibility, potential applications and availability. The surface chemistry of HNTs is versatile for the targeted chemical modification of the inner lumen and outer surface. Functionalized halloysite constitutes a valuable support for metal nanoparticles, promoting catalytic applications with tunable properties. The peculiar tubular shape of HNTs favors the dispersion and surface availability of the supported metal nanoparticles that are active in the catalytic path. Moreover, the presence of an empty lumen opens new perspectives for the production of nanoarchitectures with synergistic catalytic effects, due to the increase in local concentrations and confinement. The main focus of this review is the research on modified halloysite nanotubes for the preparation of valuable supports for metal nanoparticles and their applications in catalytic processes.

Graphical abstract: Halloysite nanotubes as support for metal-based catalysts

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Article information


Submitted
06 Apr 2017
Accepted
31 May 2017
First published
31 May 2017

J. Mater. Chem. A, 2017,5, 13276-13293
Article type
Review Article

Halloysite nanotubes as support for metal-based catalysts

M. Massaro, C. G. Colletti, G. Lazzara, S. Milioto, R. Noto and S. Riela, J. Mater. Chem. A, 2017, 5, 13276
DOI: 10.1039/C7TA02996A

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