Search results for "Titanium"
showing 10 items of 878 documents
State selective electron injection in non-aggregated titanium phthalocyanine sensitised nanocrystalline TiO2 films
2004
We describe a novel titanium phthalocyanine that shows no aggregation when anchored to nanocrystalline TiO2 films through its axial carboxylated ligand without the use of co-adsorbents; state selective electron injection into the TiO2 is demonstrated, resulting in efficient photocurrent generation in dye sensitised photoelectrochemical solar cells. Palomares Gil, Emilio J, epagil@alumni.uv.es
Porous titania surfaces on titanium with hierarchical macro- and mesoporosities for enhancing cell adhesion, proliferation and mineralization
2014
Titanium received a macroporous titania surface layer by anodization, which contains open pores with average pore diameter around 5 μm. An additional mesoporous titania top layer following the contour of the macropores, of 100-200 nm thickness and with a pore diameter of 10nm, was formed by using the evaporation-induced self-assembly (EISA) method with titanium (IV) tetraethoxide as the precursor. A coherent laminar titania surface layer was thus obtained, creating a hierarchical macro- and mesoporous surface that was characterized by high-resolution electron microscopy. The interfacial bonding between the surface layers and the titanium matrix was characterized by the scratch test that con…
Sensitizer exchange dynamics in air and solvent filled semiconductor nanocavities
2010
Multiple dye binding sites and their exchange in equilibrium in air and solvent filled sensitized titanium oxide nanocavities were identified by 2DIR spectroscopy. Binding geometry and flexibility may influence electron injection efficiency of solar cells.
Heterometallic Titanium–Organic Frameworks by Metal-Induced Dynamic Topological Transformations
2020
Reticular chemistry has boosted the design of thousands of metal and covalent organic frameworks for unlimited chemical compositions, structures, and sizable porosities. The ability to generate porous materials at will on the basis of geometrical design concepts is responsible for the rapid growth of the field and the increasing number of applications derived. Despite their promising features, the synthesis of targeted homo- and heterometallic titanium–organic frameworks amenable to these principles is relentlessly limited by the high reactivity of this metal in solution that impedes the controlled assembly of titanium molecular clusters. We describe an unprecedented methodology for the syn…
Enhancing extraction performance of organophosphorus flame retardants in water samples using titanium hierarchical porous silica materials as sorbent…
2021
Abstract A sorbent for the extraction of organophosphorus flame retardants has been proposed, based on UVM-7 (University of Valencia Materials) mesoporous silica doped with titanium. Designed cartridges have been applied to the extraction and preconcentration of flame retardants in water samples, followed by gas chromatography coupled to a mass spectrometry detector. Firstly, UVM-7 materials with different contents of titanium were synthesized and characterized by several techniques, thus confirming the proper mesoporous architecture. The potential of these materials was assessed in comparison with their morphological properties, resulting Ti50-UVM-7 the best solid phase. Several extraction…
CCDC 142274: Experimental Crystal Structure Determination
2000
Related Article: J.Okuda, S.Verch, R.Sturmer, T.P.Spaniol|2000|J.Organomet.Chem.|605|55|doi:10.1016/S0022-328X(00)00252-7
CCDC 1052595: Experimental Crystal Structure Determination
2015
Related Article: Adrien T. Normand, Philippe Richard, Cédric Balan, Constantin G. Daniliuc, Gerald Kehr, Gerhard Erker, Pierre Le Gendre|2015|Organometallics|34|2000|doi:10.1021/acs.organomet.5b00250
CCDC 142273: Experimental Crystal Structure Determination
2000
Related Article: J.Okuda, S.Verch, R.Sturmer, T.P.Spaniol|2000|J.Organomet.Chem.|605|55|doi:10.1016/S0022-328X(00)00252-7
CCDC 987358: Experimental Crystal Structure Determination
2014
Related Article: Adrien T. Normand, Alexandre Massard, Philippe Richard, Coline Canovas, Cédric Balan, Michel Picquet, Audrey Auffrant, Pierre Le Gendre|2014|Dalton Trans.|43|15098|doi:10.1039/C4DT00746H
CCDC 1052598: Experimental Crystal Structure Determination
2015
Related Article: Adrien T. Normand, Philippe Richard, Cédric Balan, Constantin G. Daniliuc, Gerald Kehr, Gerhard Erker, Pierre Le Gendre|2015|Organometallics|34|2000|doi:10.1021/acs.organomet.5b00250