Liang Zhao、Craig J. Matthews、Laurence K. Thompson 等 4 位作者2000-01-01Chemical Communications
The heptadentate ligand 2POAP combines two bridging alkoxide oxygen donors with diazine and pyridine terminal nitrogen donors in a linear array with the binding sites positioned critically to accommodate three metal centres, but on reaction with Mn(ClO4)2·6H2O a strict self assembly process occurs, producing a unique…
Metal-Organic Frameworks: Synthesis and ApplicationsMagnetism in coordination complexesPorphyrin and Phthalocyanine Chemistry
Antonio Bianchi、Luisella Calabi、Claudia Giorgi 等 9 位作者2000-01-01Journal of the Chemical Society Dalton Transactions
The co-ordination properties toward Na+, Ca2+, Zn2+, Cu2+ and Gd3+ of six ligands containing pendant functionalities attached to the common 1,4,7,10-tetraazacyclododecane macrocyclic ring have been studied by means of potentiometric and microcalorimetric methods. Stability constants for the 1,4,7,10-tetra(methylcarbam…
Molecular Sensors and Ion DetectionRadioactive element chemistry and processingLanthanide and Transition Metal Complexes
Mónica Soler、Swapan K. Chandra、Ernest R. Davidson 等 6 位作者2000-01-01Chemical Communications
Dianionic members of the Mn12 family of single-molecule magnets have been prepared by two-electron reduction of the neutral cluster; the [PPh4]2[Mn12O12(O2C CHCl2)16- (H2O)4] representative has been shown to possess an S = 10 ground state and to exhibit out-of-phase ac susceptibility signals diagnostic of single-molec…
Magnetism in coordination complexesLanthanide and Transition Metal ComplexesPolyoxometalates: Synthesis and Applications
Shan Zheng、Lian Gao、Qinghong Zhang 等 4 位作者2000-01-01Journal of Materials Chemistry
A series of titania modified mesoporous silicate MCM-41 (MCM-TiO2) samples with variable Ti/Si ratios have been synthesized from tetrabutyltitanate and calcined MCM-41. The samples were characterized by powder X-ray diffraction (XRD), FTIR spectroscopy, thermal analysis (DTA–TG), nitrogen adsorption–desorption at 77 K…
Catalytic Processes in Materials ScienceZeolite Catalysis and SynthesisMesoporous Materials and Catalysis
P. Bajaj、T. V. Sreekumar、Kushal Sen2000-01-01Journal of Applied Polymer Science
Radical polymerization of acrylonitrile (AN) with methacrylic acid (MAA) and itaconic acid (IA) was carried out in a mixture of dimethylformamide (DMF) and water at 70°C using α, α′-azobisisobutyronitrile (AIBN) as an initiator. Monomer feed in the polymerization vessel was 98:2 (AN:MAA/IA) in the molar ratio, and the…
Advanced Polymer Synthesis and CharacterizationSynthesis and properties of polymersPolymer Science and PVC
Pau Gorostiza、M. Anbu Kulandainathan、Raúl Dı́az 等 6 位作者2000-01-01Journal of The Electrochemical Society
The open‐circuit potential deposition of nickel on silicon from fluoride solutions has been studied under potentiostatic control for two extreme values of pH. At pH 1.2, nickel ions are unable to exchange charge with the silicon substrate, and thus deposition is not observed. At pH 8.0, nickel ions in solution can exc…
Semiconductor materials and devicesSemiconductor materials and interfacesAnodic Oxide Films and Nanostructures
Jong‐Heun Lee、Toshiyuki Mori、Ji‐Guang Li 等 6 位作者2000-01-01Journal of The Electrochemical Society
Improvement of Grain‐Boundary Conductivity of 8 mol % Yttria‐Stabilized Zirconia by Precursor Scavenging of Siliceous Phase, Lee, Jong‐Heun, Mori, Toshiyuki, Li, Ji‐Guang, Ikegami, Takayasu, Komatsu, Manabu, Haneda, Hajime
Advancements in Solid Oxide Fuel CellsFuel Cells and Related MaterialsMetal Extraction and Bioleaching
Xian‐Ming Zhang、Ming‐Liang Tong、Xiao‐Ming Chen2000-01-01Chemical Communications
Two complexes, [{Co(phen)2}2V6O17]n 1 and [{Cu(phen)2}4- V10O29]·6H2O 2, have been hydrothermally synthesized; X-ray crystallography shows that 1 consists of one-dimensional stepped chains built up from covalently linked {V6O17}n4n chains and [Co(phen)2]2+ fragments while 2 is composed of a discrete V10O298 cluster co…
Metal-Organic Frameworks: Synthesis and ApplicationsPolyoxometalates: Synthesis and ApplicationsAdvanced Nanomaterials in Catalysis
Dirk M. Guldi、Chuping Luo、Maurizio Prato 等 5 位作者2000-01-01Chemical Communications
The ‘Marcus-inverted’ region for BET in a π–π stacked fullerene–porphyrin dyad was determined based on (i) the photoactivation of an intramolecular ET in a variety of solvents and (ii) the formation of a highly energetic charge-separated state
Porphyrin and Phthalocyanine ChemistryFullerene Chemistry and ApplicationsPhotochemistry and Electron Transfer Studies
Takashi Hibino、Atsuko Hashimoto、Takao Inoue 等 6 位作者2000-01-01Journal of The Electrochemical Society
The performance of a single‐chamber solid oxide fuel cell (SOFC) was studied between 350 and 900°C in flowing mixtures of methane, ethane, propane, or liquefied petroleum gas and air with a fuel/air volume ratio of one, where their oxidation proceeded safely without explosion. Among all tested electrode materials, cer…
Electrocatalysts for Energy ConversionAdvancements in Solid Oxide Fuel CellsFuel Cells and Related Materials
Mohamed Mahmoud Nasef、Hamdani Saidi、Ahmed M. Dessouki 等 4 位作者2000-01-01Polymer International
Radiation-induced grafting of styrene onto poly(tetrafluoroethylene) (PTFE) films was studied by a simultaneous irradiation technique. Grafting was carried out using γ-radiation from a 60Co source at dose rates of 1.32–15.0 kGy h−1 at room temperature. The effects of type of diluent, dose rate, irradiation dose, and t…
Fuel Cells and Related MaterialsPolymer Nanocomposite Synthesis and IrradiationSilicone and Siloxane Chemistry
Michael Feig、Piotr Rotkiewicz、Andrzej Koliński 等 5 位作者2000-01-01Proteins Structure Function and Bioinformatics
A procedure for the reconstruction of all-atom protein structures from side-chain center-based low-resolution models is introduced and applied to a set of test proteins with high-resolution X-ray structures. The accuracy of the rebuilt all-atom models is measured by root mean square deviations to the corresponding X-r…
Protein Structure and DynamicsRNA and protein synthesis mechanismsEnzyme Structure and Function
Eugenio Coronado、Miguel Clemente‐León、José Ramón Galán‐Mascarós 等 6 位作者2000-01-01Journal of the Chemical Society Dalton Transactions
The possibilities offered by hybrid functional materials formed by two molecular networks in the context of crystal engineering are illustrated with two different examples: (i) hybrid magnets constructed from combination of an extended ferromagnetic or ferrimagnetic inorganic network, with a molecular paramagnetic met…
Magnetism in coordination complexesPolyoxometalates: Synthesis and ApplicationsOrganic and Molecular Conductors Research
B. Warne、O. I. Kasyutich、Eric Mayes 等 5 位作者2000-01-01IEEE Transactions on Magnetics
Nanoscale CoPt grains were prepared within protein shells from aqueous reactants. A series of particles with varying Co:Pt ratios was used to explore the transition from superparamagnetic to ferromagnetic behavior at room temperature. TEM and electron diffraction confirmed ordered fct CoPt phases with an average grain…
Magnetic properties of thin filmsQuantum Dots Synthesis And PropertiesMolecular Junctions and Nanostructures
Masanobu Izaki、Jun‐ichi Katayama2000-01-01Journal of The Electrochemical Society
Boron‐incorporated ZnO film which had a wurtzite structure and showed optical bandgap energy of 3.3 eV was prepared chemically onto a nonconductive substrate by immersing the substrate in an aqueous solution containing a zinc nitrate and dimethylamineborane (DMAB) at 333 K. Effects of the incorporated boron on the str…
ZnO doping and propertiesQuantum Dots Synthesis And PropertiesConducting polymers and applications
E. Petrovicova、Richard Knight、Linda S. Schadler 等 4 位作者2000-01-01Journal of Applied Polymer Science
Nylon 11 coatings filled with nominal 0–15 vol % of nanosized silica or carbon black were produced using the high velocity oxy-fuel combustion spray process. The scratch and sliding wear resistance, mechanical, and barrier properties of nanocomposite coatings were measured. The effect of powder initial size, filler co…
Polymer Nanocomposites and PropertiesSilicone and Siloxane ChemistryMaterial Properties and Applications
Tomoyuki Kakeshita、Tetsuya Takeuchi、Takashi Fukuda 等 7 位作者2000-01-01Materials Transactions JIM
The effect of a magnetic field on martensitic transformations in Fe–Ni–Co–Ti and Fe3Pt shape memory alloys has been examined in order to know a magnetic field-induced martensitic transformation and a control of crystallographic domain (variant) by magnetic field. Following results were obtained: (i) Magnetoelastic mar…
Microstructure and Mechanical Properties of SteelsShape Memory Alloy TransformationsMagnetic Properties and Applications
David Grosso、Ruud Balkenende、P. A. Albouy 等 6 位作者2000-01-01Journal of Materials Chemistry
Mesoporous silica thin films have been produced by sol–gel chemistry in the presence of cetyltrimethylammonium bromide (CTAB) template. The films were deposited on silicon or glass substrates by dip-coating and underwent different treatments to eliminate the CTAB and create porosity. As-prepared and treated coatings e…
Mesoporous Materials and CatalysisAerogels and thermal insulationSilicone and Siloxane Chemistry
Tatsumi Ishihara、Takaaki Shibayama、Miho Honda 等 5 位作者2000-01-01Journal of The Electrochemical Society
Effects of small amounts of Fe doping for Ga site in oxide on oxide ion conductivity is investigated in this study. It is found that doping a small amount of Fe is effective for improving the oxide ion conductivity in (LSGM). The highest oxide ion conductivity was exhibited at x = 0.03 in among the Fe‐doped samples. E…
Advancements in Solid Oxide Fuel CellsFuel Cells and Related MaterialsChemical Looping and Thermochemical Processes
Hong‐Ping Lin、Chung‐Yuan Mou、S.-B. Liu2000-01-01Advanced Materials
Mesoporous silica ropes and pillar-within-hollow gyroidal spheres with highly ordered nanostructure have been synthesized through acid and ammonia hydrothermal treatment. Along with hierarchical structures, mesoporous tubules and myelin fingers, such as that shown in the Figure, spontaneously form from the silica rope…
Mesoporous Materials and CatalysisDiatoms and Algae Research