Materials Literature
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Nickel displacement deposition into porous silicon with pores of aspect ratio as high as has been experimentally studied. High degree of thickness uniformity of the plated nickel inside the pores has been achieved by controlling the plating bath chemistry and the reaction time. The deposited nickel displaces the Si th…
Abstract A continuous gas‐phase process under atmospheric pressure for tailoring Pd/SiO 2 catalyst particles is described and characterized. Emphasis is placed on controlling the size and number density of Pd nanodots on the surface of the carrier particle. In the first step, sub‐micrometer‐sized SiO 2 support particl…
Two new sandwich-type heteropolyoxometalates, Na(14)[Co(2)Bi(2)(beta-B-CoW(9)O(34))(2)].48H(2)O (1) and Na(14)[beta-B-Zn(2)Bi(2)(ZnW(9)O(34))(2)].51H(2)O (2), have been synthesized at pH = 7.5-8 and characterized by elemental analysis, IR, UV-vis, TG-DSC and electrochemistry. Structural analysis indicates that both po…
We succeeded in regulating the growth of diatom cells on chemically modified glass surfaces. Glass surfaces were functionalized with -CF3, -CH3, -COOH, and -NH2 groups using the technique of self-assembled monolayers (SAM), and diatom cells were subsequently cultured on these surfaces. When the samples were rinsed aft…
The dissolution of Ni(COD)2 (COD = 1,5-cyclooctadiene) into dichloromethane leads to decomposition and formation of a room temperature magnetic material, whereas the reaction of Ni(COD)2 and tetracyanoethylene (TCNE) in THF forms paramagnetic materials including NiII[C4(CN)8](THF)2·xTHF. These results are discussed in…
Electron probe microanalysis (EPMA) is a promising method for the evaluation of various kinds of material transport and phase changes. It can be used for the accurate estimation of the diffusion coefficient in concrete and for the verification of advanced models describing the material transport of various elements be…
In our program for developing chirality manipulation systems, we synthesized bis(zinc porphyrin) 1, with a dibenzodiaza-30-crown-10 as a linker unit. Two structural features were examined. The aza-crown segment exhibited an intermolecular interaction with the zinc(ii) of the porphyrin, capable of causing aggregation t…
The cohesive and elastic properties of the non-oxide perovskite type superconductor MgCNi3 are calculated using the full-potential linear muffin-tin orbital method with the local density approximation as well as the generalized gradient approximation for exchange and correlation. The calculated equation of state and g…
Effect of Dispersion of Nanosize Platinum Particles on Electrical Conduction Properties of Proton-Conducting Oxide SrZr0.9Y0.1O3 − α , Matsumoto, Hiroshige, Furya, Yoshihisa, Okada, Sachio, Tanji, Takayoshi, Ishihara, Tatsumi
The etching characteristics of Ge 2 Sb 2 Te 5 (GST) films were studied with a C H F 3 ∕ O 2 gas mixture using a reactive ion etching system. The variations of etch rates and etch profiles caused by changes in the gas-mixing ratio were investigated under constant pressure and applying power. Then the etching parameters…
The effect of the addition of Zr to CeO2 on the hydrogen reduction and subsequent water splitting re- actions is described with consideration of structural changes. For this purpose, CexZr1-xO2 was prepared by a co-precipitation method. The hydrogen reductions of CexZr1-x.O2 (x = 0.5, 0.6, 0.7, 0.8, 1.0) and the subse…
The paper presents a rigorous analytical approach to determine the field patterns in simple chirofibers having circular cross-section. Variations in core as well as cladding chiralities are considered to investigate the behavioral feature of the fields propagating in the structure. In particular, the results are compa…
[EN] In this review we will show that wide and small angle X-ray scattering techniques (WAXS and \nSAXS respectively) can be a valuable tool to characterize the structure of carbon nanotubes \n(CNT) and related CNT-polymer nanocomposites at different characteristic length scales. \nRanging from single carb…
The geometry, electronic structure and optical properties of pure and 3d transition metals-doped anatase-phase TiO2 were studied by using the plane-wave ultrasoft pseudopotential method based on the density functional theory. The calculations show that the formation of impurity energy level is mainly contributed by 3d…
Interfacial segregation of nanoparticles on droplets, such as water droplets in oil, is achieved by mixing or shaking organic solutions of the nanoparticles with water. This typically results in the formation of droplets with a large distribution of sizes, ranging from 10 microm to greater than 200 microm in diameter.…
On the basis of the characterization and calculation of wetting property of the limited quid-solid interface, the difference between the deduced theoretical calculation solution and Y-G-G Empirical equation and Y-G-G-F-V Equation is contrasted; the theoretical formula is calculated and verified by the wetting test. Th…
Degradation mechanisms relevant to hypersonic environments have been investigated for silicide-coated niobium alloys. To assess the suitability of silicide coatings for possible leading edge, scramjet combustor, and vehicle acreage applications, tests were conducted over a range of oxygen and water vapor partial press…
Electrical conduction properties of five biodegradable polymers, polycaprolactone, polybutylene succinate adipate, polybutylene succinate, polybutylene adipate terephthalate, and poly-L-lactic acid, are discussed in relation to their measured values of glass transition temperature, complex permittivity, and breakdown…
Extracellular matrix (ECM) plays an important role in cell differentiation, growth, migration and apoptosis. Collagen is the most abundant protein family in vivo , but its function has still not been clearly defined yet. Reactive oxygen species (ROS) have a central role in oxidative cell stress. Electron spin resonanc…
Direct calculation of electron spin relaxation and EPR lineshapes, based on Brownian dynamics simulation techniques and the stochastic Liouville equation approach (SLE-L) [Mol. Phys., 2004, 102, 1085-1093], is here generalized to high spin systems with spin quantum number S = 3/2, 2, 5/2, 3 and 7/2. A direct calculati…