This review presents an extensive discussion on the major advances in field of periodically organized mesoporous thin films (POMTFs) obtained via surfactant templated growth inorganic or hybrid polymers. A large variety templating agents can be coupled with polymerization reactions for design nanostructured phases that yield POMTFs. The tuning interface between template and polymerizing phase control over chemical processing conditions are key parameters producing tailor-made POMTFs a high...

Mesoordered silica thin films with cubic structures were prepared by evaporation induced self-assembly (EISA) two types of structuring agent (CTAB and block copolymer F127). A complete accurate description these was obtained combining 2D-SAXS analyses, variable angle spectroscopic ellipsometry, a specially designed environmental ellipsometric porosimetry (EEP) experiment. The EEP analysis is rapid cheap operates at ambient pressure temperature. This latter experiment performed water produced...

Abstract The rise of organic–inorganic hybrid materials in both academia and industry results from a convergence diverse expertise communities is driven by the curiosity open‐minded scientists. In this review article, historical perception on evolution material science described. major periods associated with genesis are discussed: prebiotic chemistry, made through know‐how, silicates silicon modern hybrids: mushrooming multidisciplinary field research, current applications fully integrated...

"Chimie douce" based strategies allow, through the deep knowledge of materials chemistry and processing, birth molecular engineering nanomaterials. This feature article will highlight some main research accomplishments we have performed during last years. We describe successively design properties of: sol–gel derived hybrids, Nano Building Blocks (NBBs) hybrid materials, nanostructured porous proceeds as thin films ultra-thin films, aerosol processed mesoporous powders finally hierarchically...

Antireflective, photocatalytic (self-cleaning), water repellent, and high water-wetting (anti fogging) properties were combined for the first time into a sol−gel coating deposited onto glass substrates. Such an original multifunctional was obtained by liquid deposition of two successive oxide layers. The is composed hybrid methyl-functionalized nanoporous SiO2 material that exhibits transparency, resistance, close to null adsorption, fairly mechanical stability (transversal Young Modulus:...

We present here a complete study on synthesis of nickel nanoparticles involving the reaction [Ni(acac)2] with oleylamine (OA) and trioctylphosphine (TOP) reactants, whose simultaneous presence relative amounts are paramount. The role every reactant in nucleation growth has been delineated: OA is reductant thus controls rate, meanwhile TOP provides tunable surface stabilization through coordination Ni(0) surface. This result leads us to design providing tailored monodispersed wide range (2−30...

This review discussed the design and different synthetic routes that lead to hybrid thin films have a periodically organised porosity. The mechanism of formation, role organic functionality resulting mesophase, comparison between one-pot post-synthesis approaches applications domain this mesostructured film are described in article.

Photocatalytic activity of anatase cubic-based ordered mesoporous thin films was related to the morphology crystalline porous network obtained upon thermal treatment with a specific incremented sequence. The porosity and pore size distribution these were investigated novel Environmental Ellipsometric Porosimetry (EEP) technique. Network crystallinity assessed by XRD. In parallel, evolution photocatalytic studied through UV-induced photodegradation methylene blue lauric acid within at various...

Ellipso-porosimetry and electrochemical techniques were used to characterize porosity molecular transport into mesostructured porous silica thin films displaying various structures. The have been prepared by the evaporation-induced self-assembly (EISA) method using cetyltrimethylammonium bromide (CTAB) as template. According previous investigations, structure of film can be controlled fine adjustment CTAB concentration relative humidity during dip-coating process. Films p6m (2D hexagonal),...

For 25 years, Chemistry of Materials has been clearly providing a key forum to chemists, physicists, and engineers interested in materials preparation characterization, the search unique physical properties processing innovative devices. This short review presents discussion on some recent advances this field, illustrated with few selected examples related three our main research areas: synthesis single nano-objects porous hierarchically structured hybrid nanocomposite materials. A strong...

Achieving nanostructured or hierarchical hybrid architectures involves cross-cutting synthetic strategies where all facettes of chemistry (organic, polymers, solid-state, physical, materials chemistries, biochemistry, etc..), soft matter and ingenious processing are synergistically coupled. These approaches in the vein bio-inspired synthesis integration different areas expertise allows development complex systems various shapes with perfect mastery at size scales, composition, porosity,...

The designed elaboration of alumina sub-micrometric spherical powder that combines 3D ordered mesoporosity high accessibility, nanocrystalline structure, and thermal stability up to 900 °C is reported. strategy used elaborate such new materials labeled "UPMC1" involves specific block-copolymer templating, aluminum sol−gel chemistry, tuned aerosol generation (spray drying), sequential treatments allow designing a whole set mesoporous catalytic supports by adjusting ceramization conditions...

Mesoporous thin films functionalized with silylated [small beta]-diketone compounds symmetry mesostructure dependent on the probe quantity were used as fast uranyl species sensors high selectivity and sensitivity.

The chemical strategies offered by the coupling of functional nanobuilding blocks (NBBs, made surface hybrided nanoparticles SiO2, TiO2, Co, and CdS) breath figures processing allows for development new porous materials with hierarchical porosity. Honeycomb-like macroporous membranes or films metallic oxides, metals, chalcogenides having mesoporous walls can be easily obtained. presented strategy is general, simple, versatile assembling a large variety structurally well-defined very...

We present the conventional and emerging methods of preparation nanostructured materials from chemical solution evaporation where precursors, reactants, potential structuring agents are homogeneously dispersed or dissolved in a volatile solvent. The liquid is shaped as dictated by selected process undergoes that concentrates nonvolatile species triggering various phenomena such reaction, self-assembly, phase separation, nucleation growth, aggregation, etc. While composition final material...

Checking the dosage! Carrying a drug adsorbed on mesoporous silica material may become standard to deliver drugs. But how can you be sure that is safely tucked inside channels (see graphic)? The authors tackle this tricky problem.

TiO2, Al2O3, and ZrO2 patterns (or masks) composed of ordered nanomotifs various morphologies (i.e., perforations (craters), rings, canyons, wires, dots, or channels) with typical lateral dimensions <40 nm thicknesses below 15 are presented. They were simply prepared by chemical solution deposition (CSD) molecular inorganic precursors commercial block copolymers on bare hydrophobised silicon wafer surfaces. The nanostructures obtained self-assembly during evaporation subsequently stabilized...

In the present article, we studied structuration mechanism of palladium nanocrystals (NCs) different shapes (cubes, pentatwinned nanorods, pyramids, and decahedra) prepared via seed-mediated reduction a salt in aqueous medium, presence CTAB surfactant. A detailed time-resolved TEM kinetic study formation NCs investigation influence seeds size characteristics final particles were performed. At opposite gold reference synthesis reported literature, systematic numerous very small spherical...

Spectroscopic ellipsometry was utilized to follow in situ photodegradation of organic species the vicinity TiO(2) nanoparticles during UV irradiation. Stacked layers composed TiO(2), mesoporous SiO(2), and mixed SiO(2)/TiO(2) nanocomposites with controlled thickness porosity were used as model materials. Lauric acid molecules poly(vinyl chloride) (PVC) mobile immobile pollutants, respectively. The local photocatalytic activity deduced by monitoring variation refractive index each independent...