Aerosol-assisted self-assembly of hybrid Layered Double Hydroxide particles into spherical architectures

Autor: Vanessa Prevot, Claire Szczepaniak, Maguy Jaber
Přispěvatelé: Laboratoire des Matériaux Inorganiques (LMI), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Clermont Université-SIGMA Clermont (SIGMA Clermont)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Centre Imagerie Cellulaire Santé (CICS), Université d'Auvergne - Clermont-Ferrand I (UdA)-Clermont Université, Laboratoire de Réactivité de Surface (LRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)
Jazyk: angličtina
Rok vydání: 2011
Předmět:
Zdroj: Journal of Colloid and Interface Science
Journal of Colloid and Interface Science, Elsevier, 2011, 356 (2), pp.566-572. ⟨10.1016/j.jcis.2011.01.051⟩
Journal of Colloid and Interface Science, 2011, 356 (2), pp.566-572. ⟨10.1016/j.jcis.2011.01.051⟩
ISSN: 0021-9797
1095-7103
Popis: 66-4 FIELD Section Title:Surface Chemistry and Colloids 78 Laboratoire des Materiaux Inorganiques, Clermont Universite, Universite Blaise Pascal, Clermont-Ferrand, Fr. FIELD URL: written in English; Acetate intercalated NiAl-Layered Double Hydroxide nanoparticles were prepd. by polyol process and further used as building blocks to form hybrid LDH spheres by a spray drying technique. The spherical aggregated LDH particles display a polydispersed size with a diam. ranging from 47 nm to 2 μm. The anal. of the thermal behavior evidenced that the spherical form was maintained upon calcination up to 1100°, giving rise to derived mixed oxide (NiO + NiAl2O4) nanospheres. The spherical morphol. of the LDH materials was also retained during anion exchange process. The replacement of the intercalated acetate anion by of a voluminous anion such as dodecylsulfate induces an increase of the nanosphere mean diam. of 65%. The different materials were characterized using x-ray diffraction, FTIR spectroscopy, scanning and transmission electron microscopies, dynamic light scattering, thermal anal. and nitrogen sorption. [on SciFinder(R)]
Databáze: OpenAIRE