Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
We synthesized a series of achiral non-symmetric banana-shaped compounds. Some of them were found to exhibit a nematic phase. We are strongly interested in this nematic phase composed of the bent molecule. On the basis of the assumption that the dynamics of the nematic phase of the banana-shaped molecules could be muc…
New homologous achiral five-ring bent-core mesogens with a lateral fluorine substituent at the central core and chlorine substituents at the terminal rings have been synthesized. Two mesophases could be distinguished by polarizing microscopy, calorimetry, X-ray, and electro-optical investigations. The high-temperature…
The initial stages of blistering in W due to low-energy He implantation have been investigated by molecular dynamics simulations. The calculations were carried out on a block of (001) W at 0 K, for 100 eV He ions impinging on it. This energy is far below the threshold energy needed by the projectiles to create lattice…
3,4-Phenylenedioxythiophene (PheDOT), a benzenic analogue of 3,4-ethylenedioxythiophene (EDOT), has been synthesized using two different routes namely etherification of 2,5-dicarboethoxy-3,4-dihydroxythiophene with halo-aromatics and transetherification of 3,4-dimethoxythiophene with catechols. Quantum calculations an…
Design of a Reduction-Resistant Ce0.8Sm0.2 O 1.9 Electrolyte Through Growth of a Thin BaCe1 − x Sm x O 3 − α Layer over Electrolyte Surface , Hirabayashi, Daisuke, Tomita, Atsuko, Hibino, Takashi, Nagao, Masahiro, Sano, Mitsuru
Redox gradients have been used to tailor the arrangement of photoactive ITO-electrodes at the molecular level.
We have developed electrochemical porosimetry (ECP) for analyzing microstructures of porous electrodes in situ , which can give most meaningful geometric information in electrochemical systems. The methodology is based on a model that relates electrochemical impedance data with microstructural information. Pore length…
We hereby report a simple route for the low temperature synthesis of mesoporous nanocrystalline titania involving brief hydrothermal treatment of butanolic precursors and non-ionic tri-block-copolymer surfactant at 100 degrees C, followed by evaporation induced self assembly to make a crack-free flexible film. At no t…
New banana shaped liquid crystals with a carbosilane unit at one end were synthesised and depending on the number of Si-atoms either antiferroelectric (AF) or ferroelectric (FE) switching polar smectic C phases have been obtained.
In this study, yttrium-stabilized zirconia (YSZ) thin films 1-2 μm thick electrolyte have been prepared using NiO-YSZ anode as substrates. Fuel cell test was conducted with the single chamber configuration in methane-air gas mixture using (LSCF) as the cathode. Test results showed that the open-circuit voltage to be >…
Chemical reactions and stability of Ti3SiC2 in Cu during processing of Cu/Ti3SiC2 composites in the temperature range of 900-1070 degreesC were investigated using X-ray diffraction and scanning electron microscopy. The results indicated that Cu reacted with Ti3SiC2 above 900 degreesC, and the reaction products were cl…
Nanotechnology is set to change the world. Nanotechnology is increasingly talked about with the same breathless excitement that surrounded biotechnology and information technology at the start of the 1990s. Nanotechnology has caught the attention of several nongovernmental organizations (NGOs) that have spent the past…
The peripheral nitrogen of N -confused porphyrins ( NCP ) can serve as a hydrogen bonding donor and acceptor, and a metal coordination site as well. NCP forms versatile dimers with the assistance of metal ions such as Pd II , Pt II , Zn II , Cd II , Hg II , Mn II and Fe II . The square-planar divalent metal complexes…
First Name is required invalid characters Last Name is required invalid characters Email Address is required Invalid Email Address Invalid Email Address
Using the HETPHEN concept a general and quantitative approach to the formation of heteroleptic nanogrids is illustrated.
The crystal structures of Ce2Zr2O7 and β-Ce2Zr2O7.5 were precisely determined by the Rietveld refinement of powder X-ray diffraction data. The present refinement revealed that the structure of β-Ce2Zr2O7.5 was formed by filling a half of oxygen vacancies of Ce2Zr2O7 in the specific ordered manner. The oxygen vacancy s…
The development of a small-diameter vascular graft has long been awaited. This review covers research activities, achievements and progress on vascular engineering in Japan, which was conducted over the last decade. The article includes recently developed experimental scaffolds, biologically active artificial extracel…
Ultrahigh temperature ceramics (UHTCs) including vol % SiC (HS), vol % SiC (ZS), and (ZCS) have been investigated for use as potential aeropropulsion engine materials. These materials were oxidized in water vapor (90%) using a cyclic vertical furnace at 1 atm. The total exposure time was 10 h at temperatures of 1200,…
Two methods for determination of the mean size of gold nanoparticles, based on measurement of the wavelengths of the maxima λ max of side scattering and extinction in the range 400–700 nm, are compared. Four sols with mean particle diameters d of about 15, 20, 25, and 30 nm, measured using the dynamic light-scattering…
A homologous series of silver complexes of 1-alkylimidazoles (R-im, R = CnH(2n+1), where n= 10, 12, 14, 16 and 18) was synthesized. All the CnH(2n+1)-im ligands are non-mesomorphic. Upon complexation, all the [Ag(CnH(2n+1)-im)2]-[NO3], except for n = 10, exhibit liquid crystalline properties. The crystal structure of…