Materials Literature
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ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPreparation and structural characterization of carbonylchlorocopperMikael Haakansson and Susan JagnerCite this: Inorg. Chem. 1990, 29, 26, 5241–5244Publication Date (Print):December 1, 1990Publication History Published online1 May 2002Published inissue 1 December 1990https:/…
Development of the grain‐boundary microstructure with heat treatment at 800° to 1500°C was examined for a group of 96% Al 2 O 3 ceramics containing a high‐MgO boundary phase. Using a combination of analytical and conventional electron microscopy techniques, eight different crystalline phases were detected at the bound…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCluster intermediates in an organometallic synthesis of palladium telluride PdTeJ. G. Brennan, T. Siegrist, S. M. Stuczynski, and M. L. SteigerwaldCite this: J. Am. Chem. Soc. 1990, 112, 25, 9233–9236Publication Date (Print):December 1, 1990Publication History Published onli…
In this article we studied the adsorption of serum albumin to substrata with a broad range of wettabilities from solutions with protein concentrations between 0.03 and 3.00 mg.mL-1 in a parallel-plate flow cell. Wall shear rates were varied between 20 and 2000 s-1. The amount of albumin adsorbed in a stationary state…
Crown ethers have been used for over twenty years as selective binding agents for alkali metal and alkaline earth ions. Although there have been many modifications to the crown ether core, none is so dramatic as to substitute heteroatoms into the positions normally occupied by carbon atoms. In this article we describe…
In view of the fact that a large number of fire accidents are directly or indirectly caused by cotton fabrics every year, it is extremely urgent to endow cotton fabrics with flame retardant properties. A neotype boron-nitrogen-silicon synergistic flame retardant BTDU-PTMS was successfully synthesized and applied to co…
Large‐grained (100‐ to 200‐μm), yttria‐doped, polycrystalline t '‐zirconia ceramics were fabricated by heat‐treating presintered samples at temperatures 2100°C. Polarized light microscopy revealed the ferroelastic domain structure in the t ' samples. XRD showed that no monoclinic phase was detected on as‐polished, gro…
Following the profile decomposition of CeO 2 X-ray powder data into individual structure factors, the maximum-entropy method (MEM) has been used to obtain an electron-density-distribution map. In the profile decomposition process, it is impossible to avoid the problems of overlapping peaks which have the same magnitud…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMolecular engineering in the design of short-range ferromagnetic exchange in organic solids: the 1,3,5-triphenylverdazyl systemP. M. Allemand, G. Srdanov, and Fred WudlCite this: J. Am. Chem. Soc. 1990, 112, 25, 9391–9392Publication Date (Print):December 1, 1990Publication H…
An experimental investigation of the sedimentation of monodisperse colloidal silica spheres with grafted octadecyl chains with three different interaction potentials is presented. Small particles (0.27 μm) behaved as hard spheres in cyclohexane, but larger ones (0.60 and 0.94 μm) are weakly flocculated by van der Waal…
Surfactant (BL86) was isolated from foam produced during growth ofBacillus licheniformis 86 by acid-precipitation followed by extraction into tetrahydrofuran or methanol. The surfactant is anionic and dissolves in tetrahydrofuran, methanol, chloroform, dichloromethane, xylene, toluene, and alkaline water. The surfacta…
Acetoacetate decarboxylase (ADC) (EC4.1.1.4) of Clostridium acetobutylicum DSM 792 was purified to homogeneity, and its first 25 N-terminal amino acids were determined. Oligonucleotide probes deduced from this sequence were used to detect positive clones in partial gene banks derived from Sau3A and HaeIII digests with…
We calculate first-retardation and multipole corrections to the dipole angular distributions of L-shell photoelectrons ejected by polarized photons. The calculation is performed nonrelativistically in the framework of the independent-particle model. It leads to general expressions for the s and p subshell retardation…
We use modulated molecular beam relaxation spectroscopy (MMBRS) to identify the sequence of elementary reaction steps and to quantify the rate parameters for catalytic water (D2O) formation on Pt(111). This investigation is restricted to surface temperatures in the range 373 ⩽ TS ⩽ 723 K and oxygen and deuterium press…
Abstract For the use of published general or theoretical sensitivity factors in quantitative AES and XPS, the energy dependence of both the spectrometer transmission function and the detector sensitivity must be known. Here, we develop simple procedures that allow these dependencies to be determined experimentally. De…
Abstract Radiolytic reduction of AgClO 4 solutions containing a polyanion leads to the formation of long‐lived oligomeric silver clusters which are stabilized on the polymer chains. Under suitable conditions, the accompanying formation of colloidal silver consisting of metallic particles is strongly suppressed and clu…
Describes the realization and use of a modern electron spectrometer. The discussion includes practical guidelines accessible to non-specialists who wish to design their own instrument. The basic characteristics and the design principles of such devices are discussed, with emphasis on the key component: the energy anal…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis and characterization of quinone-substituted octaalkyl porphyrin monomers and dimersJonathan L. Sessler, Martin R. Johnson, Stephen E. Creager, James C. Fettinger, and James A. IbersCite this: J. Am. Chem. Soc. 1990, 112, 25, 9310–9329Publication Date (Print):Decemb…
A density-functional theory of nonuniform fluid mixtures---based on a generalization of the one-component weighted-density approximation---is both presented and applied to freezing transitions in binary mixtures of hard spheres. A necessary step in this application is the specification of the crystal structure of the…
A single-crystal X-ray structure analysis of decagonal Al65Cu20Co15 has been performed using the n-dimensional approach. Five-dimensional space group P10(5)/mmc, a(i)* = 0.2656 (2), a5* = 0.24107 (3)-angstrom-1, d(i) = 3.368 (1), d5 = 4.1481 (3)-angstrom, alpha-ij = 60, alpha-i5 = 90-degrees (i, j = 1,..,4), volume of…