Materials Literature
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By using fluid-kinetic simulations of confined and concentrated emulsion droplets, we investigate the nature of space non-homogeneity in soft-glassy dynamics and provide quantitative measurements of the statistical features of plastic events in the proximity of the yield-stress threshold. Above the yield stress, our r…
For the first time, the radioactive labeling of detonation nanodiamonds was efficiently achieved using a tritium microwave plasma. According to our measurements, the total radioactivity reaches 9120 ± 120 μCi mg(-1), with 93% of (3)H atoms tightly bonded to the surface and up to 7% embedded into the diamond core. Such…
Two types of heterometallic aggregates of the general formula [(Co(II))3(Co(III))2Ln3(μ3-OH)5(O2C(t)Bu)12(L)2]·2H2O (Ln = Gd(III) (), Dy(III) ()) and [(Co(III))3Ln3(μ3-OH)4(O2C(t)Bu)6(L)3](NO3)2·2CH3CN·2H2O (Ln = Gd(III) (), Dy(III) ()) were successfully isolated in reactions with [Co2(μ-OH2)(O2C(t)Bu)4]·(HO2C(t)Bu)4,…
Stepwise synthesis of linear nickel complex oligomer tapes with no need for solid-phase support has been achieved. The control of the length in flat arrays allows a fine-tuning of the absorption properties from the UV to the NIR region.
Single crystal that semiconductor industry thrive on, are grown using Czochralski (CZ) crystal growth technique. Over the years many researchers have investigated the problems related to CZ crystal growth system and number of studies related to different aspects of CZ crystal growth is available in open literature. So…
Charge delocalization, experimentally controlled, was shown to correlate with reduced chemical expansion, for enhanced durability of energy-related perovskites, supporting prior theoretical predictions. Subtle structural changes during expansion were also observed.
Photophysical properties of the thermally and chemically stable J-type phthalocyanine dimer were studied for the first time.
Oxidation of alcohols using H <sub>2</sub> O <sub>2</sub> to corresponding carbonyl compounds in good yields for lanthano-phosphotungstates catalysts and its recyclability up to five cycles was envisaged in water.
As an approach to enhance the tribological performance of diamond like carbon (DLC) coating films for dry microforming operations, the present study applied the micro-textured structures to the DLC films. Micro-texturing was realized by using stainless steel wire mesh as a masking during the ionized physical vapor dep…
A facile, environmentally friendly approach to synthesize branched Ir nanochain-like structures under mild conditions, using polyfunctional capping molecules in an aqueous medium is reported; the nanostructures exhibit a surface plasmon resonance peak (SPR) in the visible region and serve as an active substrate for su…
Novel elastomeric nanocomposites from “rigid” partially-acetylated chitin nanocrystals and “soft” high-elasticity polyurethane.
This investigation examines published results of traditional diffusion experiments on ovalbumin and bovine serum albumin to determine the extent to which assumed concentration independence of the translational diffusion coefficient is a reasonable approximation in the analysis of boundary spreading in sedimentation ve…
The structure and thermal expansion behavior of the tetragonal tungsten bronze oxide Pb2KNb5O15 were investigated by neutron powder diffraction and high-temperature X-ray diffraction. Below the Curie temperature, T(C) (orthorhombic phase, T(C) ≈ 460 °C), the cell parameters a and c increase with temperature, while b d…
EPR analysis revealed peculiar structural and dynamical properties of anticancer-active G3B –Cu( ii ) in absence and presence of normal and cancer cells.
We develop a simple predictive model of the osmotic pressure Π and linear shear elastic modulus G of uniform disordered emulsions that includes energetic contributions from entropy and interfacial deformation. This model yields a smooth crossover between an entropically dominated G ∼ kBT/a(3) for droplet volume fracti…
We study the absorption properties of ultrathin conductive films in the microwave regime, and find a moderate absorption effect which gives rise to maximal absorbance 50% if the sheet (square) resistance of the film meets an impedance matching condition. The maximal absorption exhibits a frequency-independent feature…
The fundamental aspects of a porous electrode from electrochemistry and material chemistry standpoints are discussed in the light of battery engineering designs. For example, the ionic diffusion, the electrode-electrolyte interface, interfacial charge transfer and electrode catalytic processes are discussed. The discu…
In this paper a novel numerical impedance model is developed for mixed-conducting thin films working as electrodes for solid oxide fuel cells. The relative importance of interfaces is considered by incorporating double layer contributions at the film/gas boundary. Simulations are performed on a model system, namely do…
The macrosegregation model that heat transfer, solidification, liquid flow and solute movement were considered was developed to simulate the generation of the center-line segregation in the casting of steel. The classical model which considers only the liquid flow caused by solidification shrinkage leads the negative…
In this paper, we report the obtention of gadolinium oxide doped with europium (Gd2O3:Eu+3) by thermal decomposition of the Gd(OH)3:Eu3+ precursor prepared by the microwave assisted hydrothermal method. These systems were analyzed by thermalgravimetric analyses (TGA/DTA), X-ray diffraction (XRD), structural Rietveld r…