Materials Literature
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ADVERTISEMENT RETURN TO ISSUEEditorialNEXTDominance of Metal Oxides in the Era of NanotechnologyPrashant V. KamatView Author Information University of Notre DameCite this: J. Phys. Chem. Lett. 2011, 2, 7, 839–840Publication Date (Web):April 7, 2011Publication History Published online7 April 2011Published inissue 7 Apr…
Abstract This study focuses on the synthesis and characterization of new polyamides based on an aromatic asymmetric diamine‐containing phenoxy‐substituted benzophenone segment. Low‐temperature solution polycondensation reactions of this diamine with various aromatic diacid chlorides containing ether, hexafluoroisoprop…
The role of polymer (poly(vinylamine)) size (238-11000 units) on silicic acid condensation to yield soluble nanoparticles or composite precipitates has been explored by a combination of light scattering (static and dynamic), laser ablation combined with aerosol spectrometry, IR spectroscopy, and electron microscopy. S…
We adapted a microfluidic system used previously to generate durotactic gradients of stiffness in a 3D collagen gel, to produce haptotactic gradients of adhesive ligands through the collagen gel. Oligopeptide sequences that included bioactive peptide sequences from laminin, YIGSR, or IKVAV, were grafted separately ont…
Doppelt dotierte Quantenpunkte (QDs) mit hoch effizienter Weißlichtemission (17 %) wurden durch eine einfache Heißinjektionsmethode synthetisiert (siehe Bild). Die Erzeugung der Weißlichtemission erforderte eine sorgfältige Anpassung der Synthesestrategie für die Codotierung des Wirtmaterials – ZnSe-QDs – mit Mn und C…
Laser blasting: Complete dispersion of detonation nanodiamonds was realized by laser irradiation. The infrared laser could selectively destroy the agglomerant of detonation nanodiamonds (see picture), resulting in well-dispersed nanodiamonds in solution. The optical properties of nanodiamonds were modified by changing…
Abstract A variety of homoleptic and heteroleptic, triply bonded dimolybdenum hexaalkoxides, [(Mo 2 (OR) 6 ] and [Mo 2 (OR) 4 (OR′) 2 ], were successfully applied as dual pre‐catalysts in both, the epoxidation of olefins with tert‐ butyl hydroperoxide and the deoxygenation of diorganosulfoxides with silanes, to form t…
Abstract: Effects of mineral oil (MO) and 4 emulsions (prepared with different emulsifier types) of MO and chitosan solution (CH) at a fixed ratio of MO:CH = 25:75 as coating materials in preserving the internal quality of eggs were evaluated during 5 wk at 25 °C and 20 wk at 4 °C. Generally, as storage time increased…
Using Monte Carlo simulations, we study a coarse-grained model of a water layer confined in a fixed disordered matrix of hydrophobic nanoparticles at different particle concentrations c. For c=0, we find a first-order liquid-liquid phase transition (LLPT) ending in one critical point at low pressure P. For c>0, our si…
Catalytic nitrate reduction is a promising technology in groundwater purification. In this study, PdCu bimetallic catalysts supported on an industrial amorphous silica-alumina (ASA) were synthesized and used to simulate catalytic removal of nitrate in groundwater. The catalysts exhibited very high activity and the hig…
Increasing of electron−hole separation is crucial to the improvement in the activity of photocatalyst. Photosynthesis involving the Z-scheme mechanism provides a unique process to utilize the solar energy by various biosystems and natural lives through effective electron−hole pair separation. This is an inspiring appr…
Active sites may be regarded as layers of residues, whereby the residues that interact directly with substrate also interact with residues in a second shell and these in turn interact with residues in a third shell. These residues in the second and third layers may have distinct roles in maintaining the essential chem…
Intrinsic, in-plane anisotropy of electrical resistivity was studied on mechanically detwinned single crystals of SrFe${}_{2}$As${}_{2}$ above and below the temperature of the coupled structural/magnetic transition, ${T}_{\mathrm{TO}}$. Resistivity is smaller for electrical current flow along the orthorhombic ${a}_{o}…
Abstract By using multidentate ligand 2‐hydroxynicotinic acid (H 2 nica), six new lanthanide coordination polymers [Sm(Hnica)(H 2 O) 2 SO 4 ] n ( 1 ), {[Sm 3 (Hnica) 6 (H 2 O) 6 (OH)] · 3H 2 O · SO 4 } n ( 2 ), [Eu(Hnica)(H 2 O) 2 SO 4 ] n ( 3 ), {[Eu 3 (Hnica) 6 (H 2 O) 6 (OH)] · 6H 2 O · SO 4 } n ( 4 ), {[Tb(Hnica)…
The main mineral components of the isopod cuticle consists of crystalline magnesium calcite and amorphous calcium carbonate. During moulting isopods moult first the posterior and then the anterior half of the body. In terrestrial species calcium carbonate is subject to resorption, storage and recycling in order to ret…
This paper presents an experimentally validated control-oriented model and an observer for diesel oxidation catalyst (DOC)-diesel particulate filter (DPF) system in the context of exhaust gas NO and NO2 concentration estimations. NO and NO2 have different reaction characteristics within DPF and selective catalytic red…
Nanocrystalline Ti-catalyzed MgH(2) can be prepared by a homogeneously catalyzed synthesis method. Comprehensive characterization of this sample and measurements of hydrogen storage properties are discussed and compared to a commercial MgH(2) sample. The catalyzed MgH(2) nanocrystalline sample consists of two MgH(2) p…
The synthesis of polyaniline (PANI) nanospheres by a simple template-free method has been described. The polymerization of aniline in aqueous medium was accomplished using ammonium persulfate without any protonic acid. The UV-vis spectrum of PANI nanospheres displayed the characteristic absorption peak of π-π* transit…
Single crystalline Fe-doped hexagonal BaTiO${}_{3}$ samples with varying oxygen content are created by specifically intended post-growth annealing treatments, in order to check the influence of defects on the unusual high temperature ferromagnetism observed in this system. The various defects have been shown to play a…
We have summarized some important results of the anisotropic transport properties of the prototypical manganite La 1-x Ca x MnO 3 as well as a few others. The temperature dependence of anisotropic magnetoresistance in manganites exhibits a peak near the magnetic ordering temperature which differs dramatically from the…