Search results for "Phase interface"

showing 2 items of 2 documents

An assembly of organic-inorganic composites using halloysite clay nanotubes

2018

Halloysite is natural tubular clay suitable as a component of biocompatible nanosystems with specific functionalities. The selective modification of halloysite inner/outer surfaces can be achieved by exploiting supramolecular and covalent interactions resulting in controlled colloidal stability adjusted to the solvent polarity. The functionalized halloysite nanotubes can be employed as reinforcing filler for polymers as well as carriers for the sustained release of active molecules, such as antioxidants, flame-retardants, corrosion inhibitors, biocides and drugs. The tubular morphology makes halloysite a perspective template for core-shell metal supports for mesoporous catalysts. The cataly…

Polymers and PlasticsHalloysite nanotube02 engineering and technologyReview01 natural sciencesunclassified drug adsorptionFlame retardantcovalent bondColloid and Surface ChemistryhalloysiteControlled drug deliverychemistry.chemical_classificationemulsionquantum dotSurfaces and InterfacesPolymerSelf assembly021001 nanoscience & nanotechnologynanorodPickering emulsionCorrosion inhibitoroil spillSolventSelective modification Kaolinite chemicals and drugNanorodBiocompatibility0210 nano-technologyOil water interfaceYarn Covalent interactionNanotubeMaterials scienceSupramolecular chemistrysustained drug releasecatalysiengineering.material010402 general chemistryHalloysitebioremediationPhysical and Theoretical ChemistryhydrophobicityMesoporous catalystpetroleummetal nanoparticlePhase interfacemetal bindingReinforcing fillerPickering emulsion0104 chemical sciencesOrganic-inorganic compositeNanotubeFilled polymerchemistryChemical engineeringengineeringSelf-assemblyCatalystMesoporous material
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Polystyrene nanoparticle-templated hollow titania nanosphere monolayers as ordered scaffolds

2018

We report a novel multi-step method for the preparation of ordered mesoporous titania scaffolds and show an illustrative example of their application to solar cells. The method is based on (monolayer) colloidal nanosphere lithography that makes use of polystyrene nanoparticles organised at a water–air interface and subsequently transferred onto a solid substrate. A titania precursor solution (titanium(IV) isopropoxide in ethanol) is then drop-cast onto the monolayer and left to “incubate” overnight. Surprisingly, instead of the expected inverse monolayer-structure, a subsequent calcination step of the precursor yields an ordered monolayer of hollow titania nanospheres with a wall thickness …

X ray diffractionX ray photoelectron spectroscopySolar cellMonolayer structureWater-air interfaceMonolayerPhase interfaceSettore ING-INF/01NanocrystalPerovskiteNanocrystalline anatasePerovskite solar cellPolystyrene nanoparticlePower conversion efficienciePrecursor solutionNanoparticleTitanium compoundInterfaces (materials)Interfaces (materials); Monolayers; Nanocrystals; Nanoparticles; Nanospheres; Perovskite; Perovskite solar cells; Phase interfaces; Polystyrenes; Scaffolds (biology); Solar cells; Titanium compounds; Titanium dioxide; X ray diffraction; Monolayer structures; Nano Sphere Lithography; Nanocrystalline anatase; Polystyrene nanoparticles; Power conversion efficiencies; Precursor solutions; Titania nanospheres; Water-air interface; X ray photoelectron spectroscopyTitanium dioxideScaffolds (biology)Nano Sphere LithographyNanospherePolystyreneTitania nanosphere
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