Halloysite nanotubes as support for metal-based catalysts

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...

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Bibliographic Details
Published in:Journal of materials chemistry. A, Materials for energy and sustainability Materials for energy and sustainability, 2017, Vol.5 (26), p.13276-13293
Main Authors: Massaro, M, Colletti, C. G, Lazzara, G, Milioto, S, Noto, R, Riela, S
Format: Article
Language:English
Subjects:
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Catalysis
Catalysts
Lumens
Nanoparticles
Nanostructure
Nanotubes
Surface chemistry
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Summary: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. Halloysite nanotubes (HNTs) are clay minerals with a hollow nanotubular structure. Due to their peculiar chemical characteristics, HNTs constitute valuable supports for metal nanoparticles, promoting catalytic applications with tunable properties.
ISSN:2050-7488
2050-7496
DOI:10.1039/c7ta02996a