Materials Literature
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Here we report the significant enhancement effect of mesoscopic fillers in viscoelastic phase separation of dynamic asymmetric polymer blends. Mesoscopic fillers with their size much larger than the dimensions of the polymer chains, from nanometres to microns, are preferentially immersed into the slow dynamic phase an…
We report on the investigation of 10 mol% gadolinium-doped cerium oxide thin films of various microstructures prepared by pulsed laser deposition. Depending on substrate, growth conditions and hence microstructure, the electric conductivity values vary considerably by several orders of magnitude. Remarkably, in the sa…
Chronoamperometric and galvanostatic methods of manganese dioxide electrodeposition have been compared in this work for their ability to produce high specific capacitance manganese dioxide electrodes for supercapacitor applications. When directly compared in terms of the charge passed (and hence the mass of manganese…
Depletion interactions give rise to phase separation in colloid-polymer mixtures at sufficiently high concentrations of both species. Similarly a fluid-solid phase separation is expected for binary hard sphere (BHS) mixtures, however in practice it appears such mixtures are very prone to form metastable (jammed) state…
A series of four dendrimers end-functionalized with gold(I) has been prepared from alkyne-terminated precursors and (tricyclohexylphosphine)gold(I) azide. Isolated yields range from 84-89%, based on gold. The first-generation dendrimer is cytotoxic toward 3T3 mouse fibroblast cells. Apoptosis ensues within 6 h of trea…
In this work, the influence of maximum normal impact load, absorbed energy, and contact impulse, on the impact crater volume/depth of a hydrogen-free diamond-like carbon coating (commonly known as DLC) has been studied. The tungsten high speed steel (SKH2) specimen discs were coated with DLC using the Physical Vapour…
Cu1Ce8Fex–O catalysts for low temperature CO oxidation were prepared by an improved citrate sol–gel method with incorporation of thermal treatment under N2, and characterized by the nitrogen adsorption–desorption, XRD, CO pulse experiments, CO-TPR and CO-TPD. When x = 1, the Cu1Ce8Fe1–O catalyst shows higher catalytic…
In the present work the effect of various heat sources on the temperature field within an Anode Supported Planar Solid Oxide Fuel Cell (ASP-SOFC) is studied. In order to describe the thermal behavior within the SOFC during its operation, the coupling of the mass and energy transport phenomena along with the electroche…
Mn(12) single-molecule magnets have been dispersed in water through an emulsion-assisted self-assembly method with an improved stability in water, in order to investigate the use of Mn(12) as MRI contrast agents.
Nanotechnology, a fast-growing discipline of science, is widespread in various areas of life around the world. One of the examples of nanocompounds is nanosilver, which is used in medicine, electronics, the construction industry and chemical technology as an exceptionally efficient antibacterial and antifungal agent.…
We describe some of the recent advances in the deposition and applications of amorphous diamond-like carbons, including an understanding of stress reduction by deposition. The subplantation model is described. Applications to hard, wear-resistant film are summarised.
The high corrosion resistance of duplex stainless steel(DSS)is due to elements such as Cr,Mo and N,but also depends on the microstructure.The best general properties are obtained with approximately equal amounts of austenite and ferrite and the absence of third phases such as σ(sigma)and Cr2N.In the present work the e…
Electronic structure of nickel nanoparticles encapsulated in carbon was characterized by photoelectron, X-ray absorption, and X-ray emission spectroscopies. Experimental spectra are compared with the density of states calculated in the frame of the density functional theory. The carbon shell of Ni nanoparticles has be…
The effects of variation of particle size and weight fraction on the tensile strength and Young’s modulus of periwinkle shell reinforced polyester composite have been investigated. Particulate reinforced polyester composites incorporating varying amounts of periwinkle shell particles (10, 20, 30, 35, 40 and 45wt %) of…
本研究では，腐食すきま内模擬溶液中で，二相ステンレス鋼の優先溶解挙動と保持電位およびその時の経過時間との関係を調べた．活性態電位領域（－370, －300および－260 mV vs. SCE）に定電位保持した時の電流密度は試験開始後，ある値まで減少し，その後は24時間の試験終了まで経過時間によらずほぼ一定の値を示した．不働態領域（－200 および－150 mV）では，試験開始後数時間で電流密度が大きく減少し，その後は試験終了まで低い値を示した．全電位領域において，定電位保持試験で求めた電流密度の値は，動電位アノード分極曲線から得られた値に比べ，1桁程度小さくなった．活性態領域のうちの卑側の電位（－370 mV）ではフェライト相が，…
The amount of plastic waste increases every year and exact time for its degradation is unknown. Out of a total of 300 isolated strains one strain was selected for PHB production in different conditions like carbon source, nitrogen source and incubation temperature and time. When PHB production conditions were optimize…
Gold nanoparticles were prepared by the citrate reduction of HAuCl 4 following the method of Turkevich et al. Prior to synthesis, a round-bottomed flask equipped with condenser was cleaned in aqua
Valle de Bravo reservoir is used for aquatic, fishing and as a source of drinking water to Mexico City. Annual data on composition, abundances, species richness and diversity of the phytoplankton surface community and some physical-chemical parameters variations were discussed. Results showed a spatial homogeneity for…
Ultrafast formation of ZnO mesocrystals was achieved with a facile, green, Tris-assisted, room temperature ionic liquid based antisolvent process. A deep eutectic solvent, formed by simply mixing and heating urea and choline chloride at 70 °C, served as the solvent for ZnO, whereas Tris-containing de-ionized water act…
We report thickness-dependent morphologies of a Pd film on n-layer graphenes. Via Raman spectroscopy-based technique, obvious charge transfer has been observed among Pd and graphenes, which is also dependent on the layer number. With the increase of the layer number, the Pd film becomes coarser, and the electron trans…