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Synthesis of microporous/mesoporous core-shell materials with crystalline zeolitic shell and supported metal oxide silica core
(Royal Society of Chemistry, 2016-04)
An engineered material, possessing a hierarchical porosity in a shape selective manner, was synthesized by placing a microporous silicalite-1 shell over silica microspheres embedded with various guest species. Core materials ...
Structural Relaxation and Crystalline Phase Effects on the Exchange Bias Phenomenon in FeF2/Fe Core/Shell Nanoparticles
(John Wiley and Sons Ltd, 2020-09)
In this study, the power of first-principles methods along with molecular dynamics and atomistic Monte Carlo simulations is employed to elucidate the effects of the structural relaxation on the exchange bias (EB) behavior ...
Determinación de la calidad del agua en los sitios de recreación turística: diques de Mera, Shell y Pambay de la provincia de Pastaza.
(Escuela Superior Politécnica de Chimborazo, 2019)
The current research Project aims to determine water quality in recreational tourist areas in the Mera, Shell and Pambay docks of Pastaza province, the study was based on several biological indicators. Two macroinvertebrate ...
A new synthesis pathway for colloidal silica spheres coated with crystalline titanium oxide and its comparative cyto- and genotoxic study with titanium oxide nanoparticles in rat osteosarcoma (UMR106) cells
(Elsevier Science, 2013-03)
Spherical particles with an amorphous core of silica and a crystalline shell of titanium oxide (SiO2@TiO2) formed in a three-step procedure, being the last step a mild chemical treatment. SiO2@TiO2 had a shell with pores ...
Core-Shell Nanoparticles and Three-Dimensional Nanostructured Materials as Electrocatalysts for Direct Alcohol Fuel Cells: How to Use Less Platinum and Not Die Trying
(Nova Science Publishers, 2019)
Today, the major challenges that have to be overcome for a massive production and commercialization of direct alcohol fuel cell (DAFC) technologies for stationary, portable and transportation applications are the high cost ...
Biomimetic processes through the study of mineralized shells
(ELSEVIER SCIENCE, 2003-03)
Fabrication of mineralized structures is a widespread phenomenon among living organisms (e.g., shells, carapaces, spines, spicules, bones and teeth). These ceramic biocomposites consist of layered assemblies of minute ...
Role of extracellular matrix molecules in shell formation and structure
(2001)
Avian eggshells are natural composite bioceramics containing organic and inorganic phases. The occurrence and role of particular collagens and proteoglycans in the eggshell and their pattern of secretion by the oviduct is ...
Synthesis and characterization of ZrO2@SiO2 core-shell nanostructure as nanocatalyst: Application for environmental remediation of rhodamine B dye aqueous solution
(2019-05-15)
ZrO2@SiO2 core-shell nanostructures were synthesized by a facile two-step hydrothermal plus Stöber chemical route. The structure, morphology and properties of the nanoparticles were characterized using X-ray powder diffraction ...