Takakazu Yamamoto2003-01-01Synlett
Various π-conjugated polymers have been obtained by using organometallic polycondensations mediated by organotransition metal complexes. For example, Ni(0) complex-promoted dehalogenation polycondensation of dihaloaromatic compounds X-Ar-X affords poly(arylene)s, -(-Ar-)-n. Pd-catalyzed polycondensation gives poly(ary…
Organic Electronics and PhotovoltaicsConducting polymers and applicationsSynthesis and Properties of Aromatic Compounds
Maged A. Osman、Michael Ploetze、Ulrich W. Suter2003-01-01Journal of Materials Chemistry
Oxidative thermal degradation of organically modified montmorillonite (OM) and muscovite was studied using conventional and high-resolution TGA. Analysis of the ultra thin alkylammonium film covering the mineral surface revealed a correlation between thermal stability and extent of cation exchange. In the final stage…
Polymer Nanocomposites and PropertiesClay minerals and soil interactionsLayered Double Hydroxides Synthesis and Applications
Min-Joo Kim、Heay-Jin Na、Kyoung Chul Lee 等 5 位作者2003-01-01Journal of Materials Chemistry
Au–Ag and Au–Cu nanoparticles of various compositions were synthesized in chloroform and their physical properties were characterized by employing various techniques such as UV-Visible spectroscopy, transmission electron microscopy and X-ray photoelectron spectroscopy. The synthesized alloy nanoparticles of diameter c…
Gold and Silver Nanoparticles Synthesis and ApplicationsNonlinear Optical Materials StudiesLaser-Ablation Synthesis of Nanoparticles
Dirk Zahn、Oliver Hochrein2003-01-01Physical Chemistry Chemical Physics
The hydration of (001) surfaces of hydroxyapatite (Ca10(PO4)6(OH)2) was elucidated by means of molecular dynamics simulation. The investigated surface types were derived from differently cutting the ideal crystal structure perpendicular to the [001] direction. Three surface types with rather different electrostatic ch…
Bone Tissue Engineering MaterialsCalcium Carbonate Crystallization and InhibitionCrystallization and Solubility Studies
Gautam Gundiah、Samrat Mukhopadhyay、Usha Govind Tumkurkar 等 6 位作者2003-01-01Journal of Materials Chemistry
A tripodal cholamide-based hydrogel has been employed as a template to synthesize inorganic nanotubes. Besides nanotubes of oxides such as SiO2, TiO2, ZrO2, WO3 and ZnO, nanotubes of sulfates such as the water-soluble ZnSO4 as well as of BaSO4 have been obtained using this method. An advantage of the use of the hydrog…
Polyoxometalates: Synthesis and ApplicationsSupramolecular Self-Assembly in MaterialsCovalent Organic Framework Applications
Geneviève Baril、Christine Blanc、M. Keddam 等 4 位作者2003-01-01Journal of The Electrochemical Society
Local electrochemical impedance spectroscopy (LEIS) has been applied to study the corrosion behavior of an as-cast AZ91 magnesium alloy. The results are compared with those obtained from traditional electrochemical impedance spectroscopy and discussed in relation with previously published results. They confirm the spe…
Corrosion Behavior and InhibitionMagnesium Alloys: Properties and ApplicationsAluminum Alloy Microstructure Properties
C. Li、Zhongxiang Shen2003-01-01Electromagnetic waves
The electromagnetic scattering from a conducting cylinder coated with metamaterials, which have both negative permittivity and permeability, is derived rigorously by using the classic separation of variables technique.It is found that a conducting cylinder coated with metamaterials has anomalous scattering cross secti…
Antenna Design and AnalysisMetamaterials and Metasurfaces ApplicationsAdvanced Antenna and Metasurface Technologies
Huan Jiao、Fuhui Liao、Shujian Tian 等 4 位作者2003-01-01Journal of The Electrochemical Society
This paper reports a systematic investigation on photoluminescent (PL) properties of and -activated The excitation spectrum of consists of the strong CTS absorption and week f-f transitions of while the excitation spectrum of is composed of the strong d-f transition and weak f-f transitions of The charge transfer stat…
Luminescence Properties of Advanced MaterialsLanthanide and Transition Metal ComplexesMicrowave Dielectric Ceramics Synthesis
Zhonggang Feng、Masayuki Yamato、Tetuzo Akutsu 等 6 位作者2003-01-01Artificial Organs
In this article the mechanical properties of contracted collagen gels were investigated thoroughly by means of uniaxial tensile test. Large type I collagen-Dulbecco's Modified Eagle Medium (DMEM) gels (each was 26 ml in volume, 1.67 mg/ml collagen concentration), each populated with about 2.5 x 106 human fibroblasts,…
Bone Tissue Engineering MaterialsElectrospun Nanofibers in Biomedical ApplicationsCollagen: Extraction and Characterization
MA Saburova、Igor Polikarpov2003-01-01Marine Ecology Progress Series
An investigation of vertical distribution, rhythms of vertical migration and division of epipelic free-living diatom algae was carried out at different sediment depths on intertidal sandflat in the Chernaya River Estuary (Kandalaksha Gulf, White Sea, Russia) during the summers of 1994-2001. The depth of penetration of…
Marine and coastal ecosystemsMicrobial Community Ecology and PhysiologyDiatoms and Algae Research
H. Wilmer、Melanie Kurtz、Konstantin Klementiev 等 12 位作者2003-01-01Physical Chemistry Chemical Physics
In order to identify active sites on ZnO powdered catalysts in methanol synthesis a total of five ZnO samples with different degrees of crystallinity were characterized by means of N2 physisorption, XRD, TEM, and EXAFS. With respect to catalysis, high-pressure methanol synthesis was performed as a test reaction. A lin…
Advanced Chemical Physics StudiesCatalytic Processes in Materials ScienceCatalysis and Oxidation Reactions
Anna Arkhireeva、John N. Hay2003-01-01Journal of Materials Chemistry
A range of silsesquioxane nanoparticles has been synthesised by a modified Stöber method. An aqueous sodium silicate solution was used as a seed for further growth of methyl-, ethyl-, phenyl- and vinyl-modified silica spheres. Particles with diameters in the range 60–180 nm were prepared by hydrolysis and condensation…
Mesoporous Materials and CatalysisAerogels and thermal insulationSilicone and Siloxane Chemistry
San Ping Jiang、Yongjun Leng、Siew Hwa Chan 等 4 位作者2003-01-01Electrochemical and Solid-State Letters
Conventional (La, Sr ) MnO 3 (LSM) electrodes modified by ion impregnation methods showed promising potential as cathodes for intermediate temperature solid oxide fuel cells. After impregnation of ionic conducting-type Gd 0.2 Ce 0.8 ( NO 3 ) x nitrite salt solution into the LSM structure, electrochemical activity of L…
Advancements in Solid Oxide Fuel CellsMagnetic and transport properties of perovskites and related materialsElectronic and Structural Properties of Oxides
Abigail Rose、Stéphanie Maniguet、Rebecca J. Mathew 等 6 位作者2003-01-01Physical Chemistry Chemical Physics
In situ EXAFS (extended X-ray absorption fine structure), in situ XRD (X-ray diffraction) and electrochemical studies have been used to investigate the palladium hydride phases of carbon supported palladium nanoparticles as a function of applied potential. Electrochemical investigations showed an increase in the hydro…
Advanced Chemical Physics StudiesElectrocatalysts for Energy ConversionMachine Learning in Materials Science
作者信息未提供2003-01-01ASM International eBooks
Contents include: Complete coverage of SCC for a variety of materials and SCC in different environments: carbon and low-alloy steels high-strength steels stainless steels nickel-base alloys copper alloys aluminum alloys magnesium alloys titanium alloys zirconium alloys uranium alloys amorphous alloys glasses and ceram…
Corrosion Behavior and InhibitionHydrogen embrittlement and corrosion behaviors in metalsNuclear Materials and Properties
Robert Ε. Kohler、Renate Dück、Bernhard Ausperger 等 4 位作者2003-01-01Composite Interfaces
Some natural fibers like flax, hemp and others show excellent mechanical properties that make them a promising choice for the reinforcement of polymers. The increasing research on natural fiber reinforced composites has still left important questions open, mainly concerning the fiber–matrix interface. Compared to the…
Natural Fiber Reinforced CompositesAdvanced Cellulose Research StudiesTextile materials and evaluations
P. Becker2003-01-01Crystal Research and Technology
Abstract In the binary system Bi 2 O 3 – B 2 O 3 glasses were prepared in the composition range 57.5 mol% ‐ 80 mol% B 2 O 3 by defined slow cooling of large melt samples (about 75 cm 3 , each). Temperatures of crystallization, of melting and of glass transition were determined and density data of the glasses were deri…
Glass properties and applicationsThermal and Kinetic AnalysisMaterial Science and Thermodynamics
Anne‐Magali Seydoux‐Guillaume、Philippe Gonçalves、Richard Wirth 等 4 位作者2003-01-01Geology
Author: Seydoux-Guillaume, A.-M. et al.; Genre: Journal Article; Finally published : 2003; Title: Transmission electron microscope study of polyphasic discordant monazites: site-specific specimen preparation by using the focused ion beam technique
Ferroelectric and Piezoelectric MaterialsNuclear materials and radiation effectsElectronic and Structural Properties of Oxides
C. Lu、W. L. Worrell、Raymond J. Gorte 等 4 位作者2003-01-01Journal of The Electrochemical Society
Samaria-doped ceria (SDC) electrolyte-supported solid oxide fuel cells (SOFCs) with Cu-SDC and -SDC anode composites were fabricated. Current-voltage and impedance-spectroscopy measurements were used to characterize their performance at temperatures between 600 and 700°C. The cells demonstrated the ability to directly…
Electrocatalysts for Energy ConversionCatalytic Processes in Materials ScienceAdvancements in Solid Oxide Fuel Cells
Michael S. Ding、T. Richard Jow2003-01-01Journal of The Electrochemical Society
Conductivity κ and viscosity η of propylene carbonate (PC)-diethyl carbonate (DEC) and PC-ethylene carbonate (EC) solutions of were experimentally determined, the former at salt molalities from 0.2 to solvent compositions from 0 to 0.7 weight fraction of DEC and 0 to 0.6 weight fraction of EC, and temperatures θ from…
Material Dynamics and PropertiesIonic liquids properties and applicationsThermodynamic properties of mixtures