Michael Hird、Kenneth J. Toyne、John W. Goodby 等 7 位作者2004-01-01Journal of Materials Chemistry
Structural moieties including core units (such as phenyl, naphthyl and thiophenyl), linking groups (such as ethynyl), terminal substituents (such as cyano, isothiocyanato and fluoro), and lateral fluoro substituents have been incorporated into novel materials designed to confer a high birefringence on nematic mixtures…
Liquid Crystal Research AdvancementsCatalytic Cross-Coupling ReactionsAxial and Atropisomeric Chirality Synthesis
I. Bouessay、Aline Rougier、J.‐M. Tarascon2004-01-01Journal of The Electrochemical Society
Nickel oxide thin films, known as optically active counter electrodes in electrochromic devices, were grown at room temperature under an oxygen pressure of 10 − 1 mbar, using pulsed laser deposition (PLD). The influence of the film thickness, potential window, and extended cycling on the electrochromic properties was…
Advanced Memory and Neural ComputingConducting polymers and applicationsTransition Metal Oxide Nanomaterials
I. Balteanu、O. Petru Balaj、Martin K. Beyer 等 4 位作者2004-01-01Physical Chemistry Chemical Physics
Cationic and anionic clusters 195Ptn±, 1 ≤ n ≤ 24, were generated by laser vaporization using an isotopically enriched platinum sample. The oxidation of the clusters by nitrous oxide under binary collision conditions was investigated as a function of charge and size in a Fourier transform ion cyclotron resonance mass…
Advanced Chemical Physics StudiesCatalytic Processes in Materials ScienceMass Spectrometry Techniques and Applications
Tomas Johansson、Nils-Krister Persson、Olle Inganäs2004-01-01Journal of The Electrochemical Society
The propagation speed of the front of electrochemical conversion, from semiconductor to highly doped polymer, in films of regioregular poly(3-hexylthiophene) spin cast on insulating substrates was analyzed. Propagation of the p-doped zone in polymer electrochromic devices was imaged simultaneously with recording of el…
Organic Electronics and PhotovoltaicsAdvanced Memory and Neural ComputingConducting polymers and applications
Yong-Jung Kim、Yutaka Masutzawa、Shinya Ozaki 等 5 位作者2004-01-01Journal of The Electrochemical Society
An organic solvent-type electrolytic solution was employed for application on an electric double-layer capacitor (EDLC) made of a polyvinylidene chloride (PVDC) based carbon material. Although the PVDC-based carbon material showed an excellent capacitance over a 100 F/g in an aqueous solvent-type electrolytic solution…
Supercapacitor Materials and FabricationConducting polymers and applicationsAdvanced battery technologies research
Ju Chou、Eric W. McFarland2004-01-01Chemical Communications
A highly selective titania supported propylene epoxidation catalyst was synthesized from chemically reduced, thiol capped, gold nanoparticles, and characterized by TEM and XPS.
Catalytic Processes in Materials ScienceCatalysis and Hydrodesulfurization StudiesCatalysis and Oxidation Reactions
Tanushree Bala、Shekhar D. Bhame、P. A. Joy 等 5 位作者2004-01-01Journal of Materials Chemistry
A facile route for the synthesis of nickel nanoparticles in stable aqueous foams is reported. The Ni nanoparticles were roughly 12–15 nm in size and were stable as aqueous suspensions or powders when oleic acid was used as a capping agent. These Ni nanoparticles were subsequently coated with a silver shell in view of…
Pickering emulsions and particle stabilizationCharacterization and Applications of Magnetic NanoparticlesNanoporous metals and alloys
Barbara Lonetti、Emiliano Fratini、S. H. Chen 等 4 位作者2004-01-01Physical Chemistry Chemical Physics
Small angle neutron scattering (SANS) and rheological measurements have been used to study horse heart cytochrome C, a globular protein characterized by approximately spherical shape (a × b × b = 15 × 17 × 17 Å3) with a molecular weight of 12 384 Da and a pI = 10.2. Two series of very concentrated protein solutions ha…
Protein Structure and DynamicsMaterial Dynamics and PropertiesRheology and Fluid Dynamics Studies
R. Amaranatha Reddy、B. K. Sadashiva2004-01-01Journal of Materials Chemistry
The synthesis and characterization of several new banana-shaped mesogens derived from 2,7-dihydroxynaphthalene are described. Some new phase sequences such as N → B6 → B1, N → X1 → X2 → B6, N → X1 → X2 → B1 → Col? have been observed in these bent-core compounds. The influence of a lateral fluorine substituent on the o…
Liquid Crystal Research AdvancementsSynthesis and Properties of Aromatic CompoundsMolecular spectroscopy and chirality
Thomas A. Miller、John C. Jeffery、Michael D. Ward 等 6 位作者2004-01-01Dalton Transactions
Co-crystallisation of the anionic cyanometallate chromophore [Ru(bipy)(CN)4]2- with Yb(III) provides coordination polymers or oligomers containing Ru-CN-Yb bridges; in [K(H2O)4][Yb(H2O)6][Ru(bipy)(CN)4]2.5H2O Ru-->Yb energy-transfer (k > 5 x 10(6) s(-1)) results in partial quenching of the Ru-based luminescence and se…
Metal-Organic Frameworks: Synthesis and ApplicationsMagnetism in coordination complexesLanthanide and Transition Metal Complexes
Kumaranand Palaniappan、Stephen A. Hackney、Jian Liu2004-01-01Chemical Communications
The fluorescence of beta-cyclodextrin-modified CdS quantum dots can be reversibly tuned by introducing different substrates in aqueous media.
Quantum Dots Synthesis And PropertiesPolymer Surface Interaction StudiesNanocluster Synthesis and Applications
M. Kunat、U. Burghaus、Christof Wöll2004-01-01Physical Chemistry Chemical Physics
The adsorption of hydrogen on a well defined single crystal rutile TiO2(110) surface has been investigated using helium atom scattering (HAS). Whereas the adsorption probability of molecular hydrogen was below the detection limit (S < 2 × 10−7), the hydrogen adlayers were prepared by exposing the clean surface to atom…
Advanced Chemical Physics StudiesCatalytic Processes in Materials ScienceGas Sensing Nanomaterials and Sensors
Jyotsnendu Giri、T. Sriharsha、D. Bahadur2004-01-01Journal of Materials Chemistry
An optimization study of different parameters for the synthesis of well dispersed nanoparticles (5–30 nm) of the system Co1−xZnxFe2O4, (0 ≤ x ≤ 0.8) has been carried out using a novel microwave refluxing method. Ethylene glycol has been used as the medium which serves as the solvent as well as a complexing and capping…
Magnetic Properties and Synthesis of FerritesNanomaterials for catalytic reactionsMicrowave-Assisted Synthesis and Applications
Masao Yonemura、Atsuo Yamada、H. Kobayashi 等 7 位作者2004-01-01Journal of Materials Chemistry
Phase relationships, structures, magnetic properties, and phase transitions in the lithium manganese oxide spinel were studied based on a wide variety of samples synthesized at temperatures over a range of 750 ≤ t ≤ 900 °C with Li/Mn ratios between 0.5 and 0.55 and various starting materials. The system was divided in…
Ferroelectric and Piezoelectric MaterialsMultiferroics and related materialsMagnetic Properties and Synthesis of Ferrites
Yuuki Tanaka、Toshihiro Ohmori、Katsunari Oikawa 等 5 位作者2004-01-01MATERIALS TRANSACTIONS
The effects of the introduction of the γ (A1) phase into the β (B2) phase on the mechanical and shape memory properties in ferromagnetic Co-Ni-Al shape memory alloys with the β+γ two-phase structure were investigated by cold-rolling, tensile tests, and bending tests. The mechanical properties were found to be improved…
Magnetic and transport properties of perovskites and related materialsShape Memory Alloy TransformationsMagnetic Properties of Alloys
San Ping Jiang、Sam Zhang、Y. D. Zhen 等 4 位作者2004-01-01Electrochemical and Solid-State Letters
Ni electrodes impregnated with nanosized electrocatalytic active (GDC) particles were fabricated and investigated as anodes for oxidation reaction in solid oxide fuel cells (SOFCs). Incorporation of nanosized ionic conducting GDC particles significantly reduced the electrode interface resistance and polarization poten…
Advancements in Solid Oxide Fuel CellsMagnetic and transport properties of perovskites and related materialsElectronic and Structural Properties of Oxides
O. G. Vendik、Marina Gashinova2004-01-01European Microwave Conference
The periodic composite medium consisting of two lattices of different dielectric spherical particles bas been investigated analytically and numerically. It is shown that effective isotropic double negative media (DNG) can be realized in the frequency region where resonance of TM mode in one kind of particles and TE mo…
Metamaterials and Metasurfaces ApplicationsElectromagnetic Scattering and AnalysisAdvanced Antenna and Metasurface Technologies
Dirk M. Guldi、Israel Zilbermann、Gregory Anderson 等 7 位作者2004-01-01Journal of Materials Chemistry
The fabrication of high quality, robust and photoactive ITO electrodes—in the form of well-defined two- and three-dimensional films—is reported following the Langmuir–Schäfer (LS) and the layer-by-layer (LBL) methods. In the LS approach C60-NiP multilayers were transferred from the air–water interface, while the LBL a…
Graphene research and applicationsPorphyrin and Phthalocyanine ChemistryFullerene Chemistry and Applications
Ping Li、Yu Wei、Hui Liu 等 4 位作者2004-01-01Chemical Communications
One-dimensional (1D) needle-like ZnO nanowhiskers have been grown directly from aqueous solution containing Zn(OH)(4)(2-) ions produced by zinc chloride and sodium hydroxide, in the presence of sodium dodecyl sulfate (SDS).
ZnO doping and propertiesGas Sensing Nanomaterials and SensorsCopper-based nanomaterials and applications
Birgit Schwenzer、Lars Loeffler、Ram Seshadri 等 7 位作者2004-01-01Journal of Materials Chemistry
Indium nitride micro- and nanostructures have been prepared by the reaction of indium oxide and ammonia in the temperature range 600–730 °C. Depending on the reaction temperature, nanoparticles with a diameter of 50–100 nm, nanowires with a diameter of ∼100 nm and of varying length, hollow microtubes or two-dimensiona…
ZnO doping and propertiesGaN-based semiconductor devices and materialsNanowire Synthesis and Applications