Materials Literature
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Abstract Corrosion of pure copper surfaces in chloride‐containing solutions leads to the combined local and global attack of the surface. To be able to identify both reactions, it is important to know the nature of the corrosion products formed in both processes. This was done by investigation of the corroded surface…
Cobalt-doped boron carbides produced by simultaneous plasma-enhanced chemical vapor deposition of carborane and cobaltocene are investigated. Cobalt does not dope plasma-enhanced chemical vapor deposition grown boron carbides as a random fragment of the cobaltocene source gas. The Co atoms are fivefold boron coordinat…
Coatings of transparent conductive oxides, especially indium tin oxide (ITO), are important in different fields. So far, application of these materials has been limited to substrates with high thermal stability. We describe an improved coating process for ITO based on plasma ion-assisted evaporation at a substrate tem…
This special issue is devoted to the application of in situ surface-sensitive techniques in the elucidation of catalysed reactions at (model) catalyst surfaces. Both reaction intermediates and the nature of the catalytically active phase are the targets of these investigations. In situ surface science techniques are a…
Abstract Novel gel network polymer electrolytes containing fluorine and sulfonic acid lithium were prepared by the ultraviolet polymerization of poly(ethylene glycol) dimethyl acrylate, 2‐acrylamido‐2‐methyl propanesulfonic acid, and trifluoroethyl methacrylate. The network polymer was activated with 1.0M LiPF6/ethyle…
Zn 0.96 Mn 0.04 O ∕ Zn O coaxial nanocable and Zn0.96Mn0.04O film were prepared by two-step method and magnetron sputtering, respectively. The x-ray diffraction analysis reveals that Mn is incorporated well into the wurtzite ZnO without formation of Mn or Mn oxide. The high resolution transmission electron microscopy…
# 2008 International Union of Crystallography Printed in Singapore – all rights reserved Jaskolski et al. (2007a) initiated a very important discussion (Jaskolski et al., 2007b; Stec, 2007; Tickle, 2007) about the accuracy of ideal geometry targets and the appropriate stringency with which they should be obeyed at var…
A two-dimensional phase-detection system for a surface-plasmon-resonance sensor is presented. The sensor utilizes polarization interferometry to detect phase differences between the s and p polarizations. We successfully detected a spatial phase-difference variation, resulting from the biomolecular interactions, of le…
Electronic spectra and structures of a new family of free-base porphyrin (H(2)P) derivatives with 4-(diphenylamino)stilbene (DPAS) or 4,4'-bis-(diphenylamino)stilbene (BDPAS) asymmetric substituents, recently synthesized and studied by Drobizhev et al. [J. Phys. Chem. B 110, 9802 (2006)] are investigated by density fu…
Oktaedrische Molekularsiebe: Kristallines orthorhombisches Mo3VOx (siehe SEM-Bild), dessen Mikrokanäle von Siebenerringen aus eckenverknüpften {MO6}-Oktaedern umgeben sind, wurde durch eine Hydrothermalsynthese erhalten. Methan, Ethan, N2, Ar oder CO2 können in den Mikrokanälen eingelagert werden. Der Festkörper zeigt…
Proteins can often be cleaved to create inactive polypeptides that associate into functional complexes through non-covalent interactions, but little is known about what influences the cooperative function of the ensuing protein fragments. Here, we examine whether protein thermostability affects protein fragment comple…
Rod-coil diblock copolymers are a special kind of molecule containing a rigid rod and a flexible part. We present a systematic study on self-assembly of the rod-coil copolymers in nanoslits using a hybrid density functional theory. The self-assembly of the rod-coil molecule is driven by the bulk concentration, and the…
Numerical and analytical simulations of projectiles penetrating brittle materials such as ceramics and glasses are a very challenging problem. The difficulty comes from the fact that the yield surface of brittle materials is not well characterized (or even defined), and the failure process may change the material prop…
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” opt…
A new species of the genus Alona (Cladocera: Chydoridae), related to Alona costata Sars, 1862 was found in the Drakensberg Mountains, South Africa. Alona natalensis sp. n. differs from all other species of the costata-group by its unique carapace sculpturing. The position of the new species within the genus and its mo…
Abstract In this article, the broadband voltage‐controlled oscillator (VCO) using electronically controlled metamaterial transmission line based on varactor‐loaded split‐ring resonator (VLSRR) is presented. It is demonstrated that VLSRR coupled to microstrip line can lead to metamaterial transmission line with tuning…
Water behaviour within a proton exchange membrane fuel cell (PEMFC): NMR and MRI studies. PEMFC uses perfluorosulfonic acid membranes (Nafion ® for example) as solid electrolytes and their performances are strongly dependent on membrane hydration. Therefore, the accurate knowledge of water distribution in the membrane…
The crystal structures of D-amino-acid amidase (DAA) from Ochrobactrum anthropi SV3 in complex with L-phenylalanine and with L-phenylalanine amide were determined at 2.3 and 2.2 A resolution, respectively. Comparison of the L-phenylalanine amide complex with the D-phenylalanine complex reveals that the D-stereospecifi…
In this paper we report the midscale synthesis of the monometallic catalyst γ-Mo 2 N and bimetallic catalyst Ni 2 Mo 3 N/Al 2 O 3 from their corresponding oxide compounds by temperature-programmed reaction in mixtures of H 2 and N 2 . The reaction was carried out in a self-designed midscale fluidized bed synthesis app…
The amorphous atomic structure of a melt-spun NiZr(3) alloy was investigated using the anomalous wide angle x-ray scattering (AWAXS) and reverse Monte Carlo (RMC) simulation techniques. The AWAXS data were collected at four incident photon energies, including ones close to the Ni and Zr K-edges, and four total structu…