Materials Literature
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Hollow Silica ( SiO 2 ) fibers with porous walls were synthesized by a coaxial electrospinning method. The SiO 2 sol prepared by a sol–gel route was blended with polyvinylacetate to prepare precursor solutions for electrospinning. Electrospinning‐synthesized hollow SiO 2 fibers were highly porous with pore diameters o…
The disclination loops entangling colloidal structures in nematics are geometrically stabilized and restricted according to topological rules. We focus on colloidal dimers and show how the writhe and twist, which are constrained to sum to a constant value, are affected by changing the intercolloidal spacing, the twist…
An effective method for the synthesis of photochromic diarylethenes through the generation of heteroaryllithiums and subsequent reaction with octafluorocyclopentene has been developed by using integrated flow microreactor systems. Reactions can be conducted without using cryogenic conditions by virtue of effective tem…
The first approach for the preparation of metal nanoparticle/semiconducting single-walled carbon nanotube (SWNT) hybrids with specified chirality is described. For this purpose, a copolymer of a fluorene derivative with two long-chain alkyl substituents and a carbazole derivative carrying a thiol group was used. The c…
Multifunctional hybrid silica nanoparticles with a fluorescent core and tunable organic or polymeric shell can easily be prepared by a sol-gel process followed by 1,3 dipolar cycloaddition (CuAAC) in the same reverse quaternary W/O microemulsion. Compared to a classical multistep process, this one-pot synthesis reduce…
A ZnO/C core/shell structure has been synthesized using in situ CVD. A ZnO nanowire array on a Ti substrate was used as both the template and catalyst. The carbon shells form a unique wrinkled scaly structure in the presence of H 2, while only a shell of rough carbon was deposited on the ZnO surface in the absence of…
Aiming to find rigorous understanding and novel features for their potential applications, the physico-geometrical kinetics of the thermal decomposition of sodium hydrogencarbonate (SHC) was investigated by focusing on the phenomenological events taking place on a single crystalline particle during the course of the r…
The generalized dissipative particle dynamics (DPD) equation derived from the generalized Langevin equation under Markovian approximations is used to simulate coarse-grained (CG) water cells. The mean force and the friction coefficients in the radial and transverse directions needed for DPD equation are obtained direc…
In this work, sugar beet pulp (SBP), the residue remaining after sugar extraction, was first turned into a thermoplastic-like compound by extrusion in the presence of water and glycerol. The resulting thermoplastic SBP (TSBP) was then blended with poly(butylene adipate- co -terepthalate) (PBAT) and extruded into sheet…
This work based on the mechanism action study of sodium gluconate (SG) for ordinary mild steel used for cooling water system treatment. In the first time, we evaluated the temperature effect on the scale inhibition of SG using statistic scale inhibition method. Result showed that the inhibition efficiency became more…
The novel SiO2@SrSi2O2N2:Eu2+ core–shell structured oxynitride phosphors were synthesized by an interfacial reaction mechanism for the first time. First, SrCO3:Eu3+ layers were deposited on monodispersed and spherical SiO2 templates through the urea homogeneous precipitation methods to fabricate the SiO2@SrCO3:Eu3+ pr…
We present coupled classical and quantum simulations of 1 to 2 nm Si nanocrystals (NCs) embedded in amorphous SiO(2) and we show that by tuning the density of the oxide matrix one may change the relative alignment of Si NC and SiO(2) electronic states at the interface. We find that interfacial strain plays a key role…
The temperature sensitive crystallization behavior of amorphous V2O5 films on glass and silicon substrates was investigated. Results indicated that after annealing in oxygen ambience, the as-sputtered amorphous V2O5 films on glass substrates dramatically transformed to standing β-phase V2O5 nanorods and flat-lying nan…
Einkristalline Calcit-Nanodrähte werden durch Kristallisation von morphologisch äquivalenten amorphen Calciumcarbonat(ACC)-Partikeln in den Poren von „Track-Etch“-Membranen gebildet. Das durch Polyasparaginsäure stabilisierte ACC wird durch Kapillarwirkung in die Poren gezogen, und die einkristalline Natur der Nanodrä…
X-ray photoelectron spectroscopy (XPS) was adopted to evaluate steric repulsive force in the aqueous dispersion system of dimethomorph powder with lignosulfonate (LS). The calculation of adsorption layer thickness (ALT) of LS on dimethomorph based on the relative intensity of the N 1s peak from XPS was presented. The…
Single-wall carbon nanotubes noncovalently functionalized with porphyrin molecules have proven to be a very promising light harvesting system either for energy or charge transfer. In this work, we investigate the dynamics of this coupling at a subpicosecond time-scale, by means of transient absorption spectroscopy. We…
Microcellular foams of poly(methyl methacrylate) with variable concentrations of an organically modified montmorillonite, oMMT (2.5–10 wt %), were prepared using a supercritical CO 2 dissolution physical foaming process. Particular importance was given to the analysis of the influence of the montmorillonite on the CO…
High-throughput UV/Vis absorption titrations have been used to characterise the properties of 120 different zinc porphyrin–pyridine complexes that contain between zero and four additional intramolecular H-bond interactions. Chemical double mutant cycles were used to measure the free energy contribution of each H-bond…
The field-emission properties of SnO(2):WO(2.72) hierarchical nanowire heterostructure have been investigated. Nanoheterostructure consisting of SnO(2) nanowires as stem and WO(2.72) nanothorns as branches are synthesized in two steps by physical vapor deposition technique. Their field emission properties were recorde…
A highly fluorescent excited state intramolecular proton transfer (ESIPT) small molecular organic gelator based on 2-(2′-hydroxy)phenylbenzoxazole, N,N′-bis(4-(benzo[d]oxazol-2-yl)-3-hydroxyphenyl)-5-tert-butylisophthalamide, is developed in the present study. The ESIPT organogelator does not have a dendritic structur…