Materials Literature
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We report a microwave-assisted solvothermal method for the preparation of AlOOH hierarchically nanostructured microspheres constructed by nanosheets. The formation mechanism of AlOOH hierarchically nanostructured microspheres is discussed. γ-Al 2 O 3 hierarchically nanostructured microspheres are obtained by heating A…
A reversible, critical phase separation induced by UV light at 350 nm has been achieved by doping a small amount of photosensitive surfactant into an AOT-stabilised water-in-decane microemulsion. The initial and separated phases were analysed by small-angle neutron scattering (SANS), which suggests irradiation produce…
In the present study, the kinetics of esterification of acetic acid with isobutanol was studied by using Amberlite IR-122 as an acid catalyst. Experiments were carried out in a stirred batch reactor in dioxane at different temperatures (323 to 348 K) under atmospheric pressure. The equilibrium constant was found to be…
We identify an optimized three-dimensional metallic photonic-band-gap filament architecture for electrically pumped, quasithermal, visible light emission. This identification is based on extensive band structure and finite-difference time-domain calculations of metallic photonic crystals. The optimum structure consist…
Sub-micrometer and nano-size catalytic particles are significantly more reactive than their bulk counterparts and can be used to enhance the performance of catalytic combustors. Their high specific surface areas (typically 1−200 m 2 /g) and unique morphologies contribute to their enhanced reactivity. Differences in ad…
In this paper, we relate experimental electron beam induced etching profiles to various electron limited and mass transport limited regimes via a continuum model. In particular, we develop a series of models with increasing complexity and demonstrate the effects and interactions that the precursor gas adsorption kinet…
In this study, the efficiency of boron removal from Balçova geothermal water provided by the Izmir Geothermal Energy Company, Turkey, has been investigated using boron selective ion exchange resins Diaion CRB 02 and Dowex (XUS 43594.00) by batch and column methods. The results of the column studies have been evaluated…
We investigate the reflection and transmission characteristics of the low-dielectric constant cut off barrier in the metal-insulator-metal (MIM) waveguide and propose a novel plasmonic nano-cavity made of two cut off barriers and the waveguide between them. It is shown that the anti-symmetric mode in the MIM waveguide…
Kristallen beim Wachsen zugeschaut: Das Kristallwachstum der nanoporösen metall-organischen Gerüststruktur HKUST-1 wurde mit Kraftmikroskopie in situ beobachtet. Diese Echtzeitstudien beweisen, dass unter den gewählten Übersättigungsbedingungen der Wachstumsmechanismus eine zweidimensionale Oberflächenkeimbildung eins…
The three-dimensional frameworks infinity(3)[LnCl3(1,4-Ph(CN)2)] of the lanthanides Ln = Sm (1), Gd (2), Tb (3), and infinity(3)[Ln2Cl6(1,4-Ph(CN)2)] for the group 3 metal Y (4) were obtained as single crystalline materials by the reaction of the anhydrous chlorides of the referring rare earth elements with a melt of…
Non-equilibrium molecular dynamics simulations are performed to calculate shear viscosities of 16 representative molecular liquids using the periodic perturbation method (PPM). A perturbation index is defined to measure the strength of the perturbation. It is identified that the predictions are systematically underest…
Internal structures of the opaque poly( N -isopropylacrylamide) gel obtained at the preparation temperature ( T P ) higher than 24.5 °C was found to have hierarchical structures by means of a combined small-angle-scattering (CSAS) method of small-angle light scattering (SALS), ultra-small-angle neutron scattering (USA…
It is found that the sensitivity of photoresponse of SnO(2) nanowires can be enhanced by metallic particles decoration. The underlying mechanism is attributed to the formation of the Schottky junction on nanowires surface in the vicinity of metallic nanoparticles. The increment in the barrier height and width of space…
Recent simulations of entangled polymer dynamics are based on slip-link models pioneered by Hua and Schieber ( J. Chem. Phys. 1998, 109, 10018). In this study, we compare different slip-link models in their prediction of the linear viscoelasticity of bidisperse linear polymers to examine how effectively such models ac…
The essence of the nu=5/2 fractional quantum Hall effect is believed to be captured by the Moore-Read Pfaffian (or anti-Pfaffian) description. However, a mystery regarding the formation of the Pfaffian state is the role of the three-body interaction Hamiltonian H3 that produces it as an exact ground state and the conc…
This paper considers propagating waves in elastic bars in the spirit of asymptotic analysis and shows that the inclusion of shear deformation amounts to singular perturbation in the Euler–Bernoulli (EB) field equation. We show that Timoshenko, in his classic work of 1921, incorrectly treated the problem as one of regu…
Under the conditions of thermodynamic instability, we produced dense sintered composites built of diamond particles (30 vol%) and a cemented carbide matrix. The composites were consolidated by high‐current electric pulses at a temperature of about 1100°C and load of 75 MPa for 5 min. The diamond particles are strongly…
Numerical studies on a graded negative index lens made by a slab of graded photonic crystal (PC) are reported. The graded negative index lens is capable of focusing plane waves and can also be made highly insensitive to frequency, enabling broadband negative index imaging. We provide a simple model for the graded PC l…
We extend our work on aqueous solutions of poly(oxyethylene) oligomers H-(CH2-O-CH2)n -H (POEn). On the basis of atomistic simulations of trimer and decamer solutions (first part of this series of papers), different sets of coarse-grained implicit-solvent potentials have been constructed using the iterative Boltzmann…
A colorimetric detection susceptible to the dimensions of guest counteranions has been demonstrated by using poly(phenylacetylene) with L-leucine and urea functionalities (poly-PA-Leu). Poly-PA-Leu was prepared from N-(4-ethynylphenylcarbamoyl)-L-leucine ethyl ester (PA-Leu) by using [Rh(+){eta(6)-C(6)H(5))B(-)(C(6)H(…