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911.
Toshiaki Yamaguchi Sota Shimizu Toshio Suzuki Yoshinobu Fujishiro Masanobu Awano 《Electrochemistry communications》2008,10(9):7656-1383
A high performance small-scale solid oxide fuel cell supported by a microtubular cathode was successfully developed via the extrusion of a (La0.8Sr0.2)0.97MnO3 cathode support and subsequent surface coating with a (La0.8Sr0.2)0.97MnO3–Ce0.9Gd0.1O1.95 activation layer followed by Sc2O3-doped ZrO2 electrolyte and NiO–Ce0.9Gd0.1O1.95 anode slurries. The cell was electrochemically evaluated in a humidified hydrogen (3% H2O) atmosphere, and exhibited a stable open circuit voltage above 1.05 V in the temperature range from 550 to 750 °C. Maximum power densities of 46.5, 163.2 and 452.8 mW cm−2 were generated at 550, 650 and 750 °C, respectively. The results indicate the realization of a stable and high performance cathode-supported micro SOFC. 相似文献
912.
Scott SL Peoples BC Yung C Rojas RS Khanna V Sano H Suzuki T Shimizu F 《Chemical communications (Cambridge, England)》2008,(35):4186-4188
In situ polymerization by certain transition metal catalysts supported on and activated by acid-treated montmorillonite produces well-dispersed clay-polyolefin nanocomposites, without requiring either organic surfactants to be present in the clay phase or modification of the polyolefin structure. 相似文献
913.
Suzuki T Kanno Y Morioka Y Kuroda K 《Chemical communications (Cambridge, England)》2008,(28):3284-3286
The alignment of mesochannels in a mesoporous silica film on a freshly cleaved mica surface, prepared by an evaporation-induced self-assembly process, is unexpectedly found to be unidirectional with the narrowest directional distribution. 相似文献
914.
915.
916.
Arai N Suzuki K Sugizaki S Sorimachi H Ohkuma T 《Angewandte Chemie (International ed. in English)》2008,47(9):1770-1773
917.
Nagashima K Suzuki T Nagamoto M Shimizu T 《The journal of physical chemistry. B》2008,112(32):9876-9882
Directional growth of tetrahydrofuran (THF) clathrate hydrates was studied in a mixture of glass beads and a stoichiometric THF-water solution. Results showed that disseminated pore space type hydrates formed in a mixture containing 50-microm beads. However, a pure hydrate layer formed pushing the beads in a mixture containing 2-microm beads (frost heaving of hydrates). As the growth proceeded, new layers were formed repeatedly, leading to the eventual formation of a periodic layered pattern. It was found that as the growth rate increased, both the thickness of a hydrate layer and the interval between the neighboring layers decreased according to power laws. The effects of the applied temperature gradient and the weight ratio of the solution and glass beads were also systematically studied. Further, the possibility of applying our model experiments to the formation of natural methane hydrates was discussed. 相似文献
918.
Takamasa Suzuki 《Tetrahedron letters》2008,49(32):4701-4703
The enantioselective allylation of aldehydes using a variety of β-amido functionalized allyltributylstannanes proceeded smoothly with good to high yields and enantioselectivities in the presence of 10 mol % of a chiral catalytic complex prepared from In(OTf)3 and 2,6-bis[(S)-4-isopropyloxazolin-2-yl]pyridine {(S)-i-Pr-pybox}, providing the corresponding chiral γ-hydroxy amides. 相似文献
919.
Trace elements such as Sc, lanthanoids, Th and U were determined by means of instrumental neutron activation analysis (INAA)
in marine sediment core samples collected from 5 coastal areas in western Japan mainly facing the Pacific. The origin of the
coastal sediments and the sedimentary environment are discussed in terms of such parameters as the La*/Lu* and Ce*/La* ratios,
the Th/Sc ratios and the Th/U-Ce/U plot obtained from the analytical data. In particular, it was confirmed that the Th/U-Ce/U
plot introduced in this work is extremely useful for estimating the sedimentary environment, including redox conditions. 相似文献
920.
Reductive amination reaction using 7-amino-4-methylcoumarin (AMC) as a fluorescent probe enabled analyses of glycoproteins' monosaccharides and N-linked oligosaccharides. Reductive amination of N-acetylhexosamines and AMC using sodium cyanoborohydride or dimethylamine-borane complex indicated slight recovery of derivatives, but pyridine-borane achieved better recoveries. Reversed-phase high-performance liquid chromatography (HPLC) analyses of monosaccharides constituting glycoprotein glycans using fluorimetric detection revealed linearity for 0.2fmol to 1pmol, with less than 5% RSD quantitation reproducibility. Reversed-phase HPLC analyses of glycoprotein glycans, combined with negative-ion electrospray ionization mass spectrometry (LC-ESI-MS), enabled their structural determination. Using this highly hydrophobic reagent, AMC-labeled oligosaccharides displayed one-order to two-order higher ESI-MS intensity than derivatives labeled using other reagents. 相似文献