A novel bicomponent photoresponsive nanocomposite consisting of zinc-based anionic clay (ZnLDH)-supported anatase TiO2 nanoparticles was obtained by the structural reconstruction of the zinc-containing clay in a TiOSO4 aqueous solution and was characterized by X-ray diffraction, IR spectroscopy, transmission electron microscopy, energy-dispersive X-ray spectroscopy, field emission scanning electron microscopy, X-ray photoelectron spectroscopy, and

Nanostructured assemblies of iron partially substituted anionic clays supported with nanoparticles of iron oxides have been obtained during the reconstruction process of the clay layered structure by manipulating its structural “memory effect”. The morphology, composition and phase structure of as-prepared powders were characterized by X-ray diffraction (XRD), N2 adsorption (SBET,Vp), transmission electron microscopy (TEM) and X-ray photoelectron

Nanostructured catalysts derived from nanoparticles of iron or vanadium oxides supported on the matrices of iron substituted hydrotalcite-like anionic clays (LDHs) have been obtained and tested in the process of ethylbenzene dehydrogenation to styrene. A simple synthesis method based on the LDHs “memory effect” has been used to prepare the new oxides-anionic clay structures. TEM analysis shows that on the typical FeLDH particles (average size

A room - temperature nanocarving strategy is developed for the fabrication of nanoparticles of nickel oxide on zinc substituted anionic clay matrix (Ni/ZnLDH). It is based on the growth and organization of nanoparticles of nickel oxide which occur during the structural reconstruction of the layered structure of the anionic clay in NiSO4 aqueous solution. No organic compounds are used during the fabrication. The described material was characterized

The use of the anionic clay structural “memory effect” as a controlled variable of the synthesis process of oleate – LDHs hybrid formulations is presented. The as – prepared materials were characterized by X-ray diffraction (XRD), N2 adsorption at 77 K, Fourier transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM) and scanning electron microscopy (SEM). The successive cycles of calcination followed by the manifestation

Nanostructured ensembles of silver nanoparticles - zinc substituted anionic clay matrix (Ag/ZnLDH) were obtained by a simple synthesis route in which the reconstruction process of the layered clay, the synthesis of the silver nanoparticles and their organization on the clay surface have taken place in one single step, at room temperature. The morphology, composition and phase structure of the as - prepared powders were characterized by X-ray diffraction