Search results for "Cobalt hexacyanoferrate"

showing 3 items of 3 documents

Synthesis and Characterization of Nanostructured Cobalt Hexacyanoferrate

2010

Cobalt hexacyanoferrate (CoHCF) nanoparticles have been synthesized by mixing aqueous solutions of K3Fe(CN)6 and CoCl2 under vigorous stirring at different temperatures and following two different procedures, drop-by-drop or immediate mixing. The resulting CoHCF nanoparticles, with dimensions of several tens of nanometers, were characterized using TEM, SEM-EDX, IR, and XRD. Their electrochemical behavior was investigated in comparison with the CoHCF powder bulk compound. The CoHCF nanoparticles exhibit an electrochemically driven conversion to the bulk one that has been investigated by a chemometric approach in order to establish the best synthetic parameters. The rate and the degree of con…

Materials scienceAqueous solutionCHEMOMETRICMixing (process engineering)Analytical chemistryNanoparticleElectrochemistryelectrochemical behaviorCOBALT HEXACYANOFERRATESurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsCobalt hexacyanoferrateCharacterization (materials science)ELECTROCHEMISTRYGeneral EnergyChemical engineeringnanocompoundNanometrePhysical and Theoretical ChemistrySettore CHIM/02 - Chimica FisicaNANO PARTICLES
researchProduct

Cobalt hexacyanoferrate–poly(methyl methacrylate) composite: Synthesis and characterization

2010

Abstract The preparation of cobalt hexacyanoferrate nanoparticles–poly(methyl methacrylate) (CoHCF–PMMA) composites are described together with their characterization and thermochromic properties. CoHCF nanoparticles – investigated by dynamic light scattering – were prepared by optimizing solvent composition and temperature to obtain nanoparticles with a reduced degree of aggregation. The nanoparticles were embedded in a PMMA matrix to obtain a transparent coloured composite which was studied by transmission electron microscopy. The nanoparticle chromic features, enhanced by their reduced sizes, were investigated by UV–vis and FT-IR spectroscopy.

Materials scienceTHERMOCHROMIC NANOPARTICLEStransmission electron microscopy (tem)Composite numberNanoparticleInfrared spectroscopytransmission electron microscopy (tem); thermochromic nanoparticles; cobalt hexacyanoferrate; nano-composites; pmma; electron microscopy; polymers; nanocompositeNANOCOMPOSITECOBALT HEXACYANOFERRATEchemistry.chemical_compoundDynamic light scatteringPolymer chemistryGeneral Materials ScienceMethyl methacrylatepolymersSettore CHIM/02 - Chimica Fisicachemistry.chemical_classificationNanocompositeelectron microscopyPolymerCobalt hexacyanoferrate PMMA Nanocomposite Thermochromic nanoparticlesCondensed Matter PhysicsPMMAPoly(methyl methacrylate)chemistryChemical engineeringvisual_artvisual_art.visual_art_mediumnano-compositesMaterials Chemistry and Physics
researchProduct

Macro-micro relationship in nanostructured functional composites

2012

This paper examines the results of the characterization of two functional composites: Poly(methyl methacrylate) (PMMA)-Ce:YAG (yttrium aluminium garnet doped with cerium) and PMMA-cobalt hexacyanoferrate (CoHCF). The composites were prepared as possible emitters in the fields of lighting thermal sensors. The prepared composites were char- acterized using transmission electron microscopy (TEM), nuclear magnetic resonance (NMR) spectroscopy, thermogravi- metric analysis (TGA), differential scanning calorimetry (DSC) and dynamic mechanical analysis (DMA) analyses to study the correlation between micro and macro characteristics. We found that the molecular interactions of the two different fill…

cobalt hexacyanoferrateMaterials sciencePolymers and PlasticsGeneral Chemical EngineeringComposite numberchemistry.chemical_elementlcsh:Chemical technologyNanocompositeschemistry.chemical_compoundDifferential scanning calorimetryYttrium aluminium garnetnanocomposites PMMA yttrium aluminium garnet doped with cerium (Ce:YAG) cobalt hexacyanoferrate (CoHCF) interfacial interactionlcsh:TA401-492Materials ChemistryCeYAGlcsh:TP1-1185Physical and Theoretical ChemistryComposite materialMethyl methacrylateSettore CHIM/02 - Chimica Fisicachemistry.chemical_classificationOrganic ChemistryPolymerDynamic mechanical analysisPMMACeriumchemistryTransmission electron microscopyYAG) cobalt hexacyanoferrate (CoHCF) interfacial interaction [nanocomposites PMMA yttrium aluminium garnet doped with cerium (Ce]lcsh:Materials of engineering and construction. Mechanics of materialsinterfacial interactionExpress Polymer Letters
researchProduct