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RESEARCH PRODUCT
Halloysite nanotubes as support for metal-based catalysts
Serena RielaGiuseppe LazzaraCarmelo Giuseppe CollettiRenato NotoMarina MassaroStefana Miliotosubject
Materials scienceBiocompatibilityNanotechnology02 engineering and technologyengineering.material010402 general chemistry01 natural sciencesHalloysiteCatalysisNanomaterialsMetalGeneral Materials ScienceMetal nanoparticlesSettore CHIM/02 - Chimica FisicaRenewable Energy Sustainability and the EnvironmentChemical modificationGeneral ChemistrySettore CHIM/06 - Chimica Organica021001 nanoscience & nanotechnology0104 chemical sciencescatalysis metal nanoparticle halloysite nanotubesvisual_artengineeringvisual_art.visual_art_mediumcatalysis metal nanoparticles halloysite nanotubes0210 nano-technologydescription
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.
year | journal | country | edition | language |
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2017-05-31 |