Influence of γ‐Alumina on the Structure of Barrier Anodic Oxide Films on Aluminum
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Mechanism of ozone decomposition in water. The role of termination
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMechanism of ozone decomposition in water. The role of terminationAlex D. NadezhdinCite this: Ind. Eng. Chem. Res. 1988, 27, 4, 548–550Publication Date (Print):April 1, 1988Publication History Published online1 May 2002Published inissue 1 April 1988https://pubs.acs.org/doi/1…
Electrochemical and spectroelectrochemical studies of nickel(II) porphyrins in dimethylformamide
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTElectrochemical and spectroelectrochemical studies of nickel(II) porphyrins in dimethylformamideK. M. Kadish, D. Sazou, Y. M. Liu, A. Saoiabi, M. Ferhat, and R. GuilardCite this: Inorg. Chem. 1988, 27, 7, 1198–1204Publication Date (Print):April 1, 1988Publication History Pub…
Electrochemical Formation of a Phthalocyanine Thin Film by Disruption of Micellar Aggregates
Abstract Phthalocyanine (1) was dissolved to the micellar solution formed by non-ionic surfactants with ferrocenyl moiety. A 1 thin film was prepared on an indium tin oxide (ITO) electrode by the controlled-potential electrolysis of this solution. This film consisted of rod-like crystals of 500 nm in length.
Zinc oxide-praseodymium oxide elements for surge arrestors
Zinc oxide elements have been developed which contain praseodymium oxide rather than bismuth oxide as a principal additive component. These elements have been used to produce gapless surge arresters with rated voltage up to 360 kV. The two-phase microstructure of these elements increases the active area of grain bound…
Synthesis and reactivity of .sigma.-bonded silicon metalloporphyrins. Spectroscopic characterization and electrochemistry of (P)Si(R)2, (P)Si(R)X, and (P)SiX2, where R = C6H5 or CH3 and X = OH- or ClO4-
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis and reactivity of .sigma.-bonded silicon metalloporphyrins. Spectroscopic characterization and electrochemistry of (P)Si(R)2, (P)Si(R)X, and (P)SiX2, where R = C6H5 or CH3 and X = OH- or ClO4-K. M. Kadish, Q. Y. Xu, J. M. Barbe, and R. GuilardCite this: Inorg. Chem…
MDI-based polyurethane ionomers. 1. New small-angle x-ray scattering model
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMDI-based polyurethane ionomers. 1. New small-angle x-ray scattering modelDaychyuan Lee, Richard A. Register, Changzheng Yang, and Stuart L. CooperCite this: Macromolecules 1988, 21, 4, 998–1004Publication Date (Print):April 1, 1988Publication History Published online1 May 2…
On the Mechanism for Improved Passivation by Addition of Molybdenum to Austenitic Stainless Steels in O-Phosphoric Acid
In order to clarify the mechanism for increased corrosion resistance in O-phosphoric acid solutions by addition of molybdenum to 17Cr-13Ni stainless steel (SS), anodic curves polarization and electron spectroscopy for chemical analysis (ESCA) have been performed on the Mo-containing steels passivated in 40 wt% H3PO4 w…
XPS surface and bulk studies of heat treated palladium in the presence of hydrogen at 150°C
Abstract Palladium metal powders used for hydrogen isotope pumping were studied for their bulk and surface chemistry changes during cleaning with hydrogen gas at 150°C. Cleaning is necessary to promote rapid hydriding and dehydriding and to prevent contaminant ingrowth in the process gas during use. These studies show…
Infrared Spectroscopic Studies of the Hydrolysis Reaction During Leaching of Heavy‐Metal Fluoride Glasses
In this work, the interfacial reactions of heavy‐metal fluoride glasses with water have been investigated by Fourier transform infrared spectroscopy. High dilution and stirring conditions were maintained to prevent any influence of pH drift and reprecipitation. From comparisons of the integrated absorption peak areas…
Electrical Properties and Site Distribution of Cations in (Mn y Co 1‐y ) 0.4 Fe 2.6 O 4
The high‐temperature electrical properties (conductivity and thermopower) of the Co 0.4 Fe 2.6 O 4 ‐Mn 0.4 Fe 2.6 O 4 join were measured in order to determine the cation intersite distribution and establish the conduction mechanism. The cobalt and manganese site occupancies show a nearly linear composition dependence.…
The correlation of chemical structure and electrical conductivity in polypyrrole films by x‐ray photoelectron spectroscopy
Abstract X‐ray photoelectron spectroscopy was used to track chemical structure changes in conducting polypyrrole films which were electrochemically grown at various current densities. The film structures were correlated to changes in the film electrical conductivities. High resolution spectra of the C 1s, N 1s and O 1…
The scattering of ultrasonic waves by multiphase polycrystals
The theory of ultrasonic propagation in single-phase polycrystals presented in previous articles [J. Acoust. Soc. Am. 72, 1021–1031 (1982); 73, 1160–1163 (1983)] is generalized to calculate the scattering coefficients and phase and group velocities of plane compressional and shear waves in multiphase polycrystals. The…
Time-resolved SAXS on crystallization of a low-density polyethylene/high density polyethylene polymer blend
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTime-resolved SAXS on crystallization of a low-density polyethylene/high density polyethylene polymer blendH. H. Song, R. S. Stein, D. Q. Wu, M. Ree, J. C. Phillips, A. LeGrand, and B. ChuCite this: Macromolecules 1988, 21, 4, 1180–1182Publication Date (Print):April 1, 1988P…
On the singular limit in a phase field model of phase transitions
The limits of families of stable solutions for the equation ε^2 Δu_ε − f(u_ε) + T(|x|) = 0 over radially symmetric domains with no-flux boundary conditions are discribed. Particular emphasis is placed on the characterization of points of discontinuity of these limits (interfaces) and on the description of the graph of…
Nitrogen 1s charge referencing for Si 3 N 4 and related compounds
Abstract This paper describes the method used to produce a Si 3 N 4 standard for use as a reference material in XPS measurements of silicon nitride related compounds. The reference material was made by high dose ion implantation of N + into a (100) Si wafer and annealing the wafer at 1150°C. Rutherford back‐scattering…
Zirconium Borohydride as a Zirconium Boride Precursor
Synthesis of zirconium boride, ZrB 2 , from zirconium borohydride, Zr(BH 4 ) 4 , has been explored by a variety of methods, including chemical vapor deposition (CVD) in a hot tube, laser CVD with both continuous‐wave (cw) and pulsed lasers, and cw‐laser synthesis of fine powders. In all cases, ZrB 2 was the only cryst…
Structure of cellulose. 2. Low-energy crystalline arrangements
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStructure of cellulose. 2. Low-energy crystalline arrangementsIstvan Simon, Leslie Glasser, Harold A. Scheraga, and R. S. John ManleyCite this: Macromolecules 1988, 21, 4, 990–998Publication Date (Print):April 1, 1988Publication History Published online1 May 2002Published in…
New theoretical results for the Lehmann effect in cholesteric liquid crystals
We point out for the first time that the classical Lehmann effect, which arises when a temperature gradient is applied parallel to the helical axis of a cholesteric droplet, is not only due to a dynamic cross-coupling between director orientation and temperature, but has also a static contribution. In addition it is d…
Correlation Between Microstructure and Electrochemical Behavior of Amorphous V 2 O 5 ‐ P 2 O 5 in Lithium Cells
Physical and chemical characterizations of vitreous oxides were performed utilizing several techniques. The microstructure of is estimated from IR absorption spectra. As a result, it is suggested that micro structural change occurs at a composition of ca. in the system with a transformation from to short‐range order w…