Materials Literature
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Lokale Ursache: Die dynamische Verformung der Dikupfertetracarboxylat-Schaufelradeinheit in einem Metall-organischen Gerüst von einer quadratisch-prismatischen (links) zu einer verzerrten Geometrie (rechts) findet bei sehr niedrigen Energien statt. Die Verformung, die stark zur negativen themischen Expansion des Syste…
The versatility of cationic cyclopentadienyliron complexes is demonstrated for the generation of calix[4]arene-based dendrimers and polymers. Dendrimers were prepared from a branched organoiron calix[4]arene through subsequent reactions of azo dyes and organoiron complexes. The resulting azo dye-containing metallocali…
A novel enzyme immobilization platform was prepared on a platinum disk working electrode by polymerizing aniline inside the interstitial pores of polyester sulphonic acid sodium salt (PESA). Scanning electron microscopy study showed the formation of homogeneous sulphonated polyaniline (PANI) nanotubes (∼90 nm) and the…
Abstract Atmospheric corrosion of aluminium in the northern Taklamakan Desert environment in China was investigated through the field exposure over a period of 2 years and the laboratory‐accelerated test of dry‐wet cycles. The results demonstrated that aluminium 1050 suffered serious atmospheric corrosion in the field…
Composite particles (CPs) formed by a homogeneous distribution of much smaller constituent metal nanoparticles (MNPs) in a host dielectric can be designed to exhibit two physically different types of resonances: (1) remarkably sharp localized surface plasmon resonances (LSPRs) and (2) equally narrow and strong localiz…
Abstract We have evaluated the effect of slit‐like nanoconfinements imposed on columnar discotic phases within a discotic block copolymer displaying a lamellar microphase. Findings are that the columns are oriented uniformly along the lamellar normal within the plane of thin films, that a rectangular rather than a hex…
Chiral high-performance liquid-chromatography (HPLC) for quantitative analysis of optically active chlorophyll(Chl)-c molecules, which are seen in many marine photosynthetic organisms, was developed. Chls-c have a single asymmetric carbon at the 13(2)-position, so their stereoisomers are (13(2)R)- and (13(2)S)-enantio…
The growth of epitaxial CaF 2 and SrF 2 thin films on single crystalline r -cut sapphire, MgO (001) and biaxially textured Ni−W polycrystalline tape by low-temperature MOCVD is reported. A novel and efficient combination of alkaline-earth and fluorine precursors was used for deposition. A comprehensive study regarding…
The dielectric properties of poly(styrene) nanoparticles decorated at their surfaces with poly(styrene sulfonate) [PSS] brushes and subsequently loaded with polypyrrole (PPy) were studied. These film-forming materials which may serve as hole-injection layers in organic light-emitting diodes, exhibit a core-shell-type…
We report an in situ high pressure investigation of the structural change in vitreous As(2)S(3) up to 60 GPa using the diamond anvil cell and energy dispersive x-ray absorption spectroscopy. The main finding of the present study is a gradual elongation of the average As-S bond length, which takes place in the pressure…
Abstract Phase pure perovskite 0.8Pb(Mg 1/3 Nb 2/3 )O 3 –0.2PbTiO 3 (0.8PMN–0.2PT) ferroelectric (FE) ceramics were prepared by the reaction‐sintering method at a sintering temperature range of 1200–1250 °C. The sintered ceramics exhibit large relative density, where the 0.8PMN–0.2PT ceramics sintered at 1250 °C posse…
Abstract This paper mainly deals with flame retardance of a silk fabric treated with a vinyl phosphate dimethyl 2‐(methacryloyloxyethyl) phosphate (DMMEP) onto silk fabric by a graft copolymerization technique. This paper also explores the relationship between limiting oxygen index (LOI) and weight gain of DMMEP treat…
The first structural representative of the domain of unknown function DUF2006 family, also known as Pfam family PF09410, comprises a lipocalin-like fold with domain duplication. The finding of the calycin signature in the N-terminal domain, combined with remote sequence similarity to two other protein families (PF0714…
The zinc acetato and triflato complexes of 2,2’-bipyridine and 1,10-phenanthroline were prepared and completely characterised. The whole series (including the already described dichlorido complexes and the ligands themselves) were screened for their catalytic activity in the solvent free ring-opening polymerisation of…
Abstract A corrosion study of API X52 steel was carried out in natural seawater with several concentrations of a corrosion inhibitor (10, 100 and 200 ppm) using a rotating cylinder electrode (RCE) to control the hydrodynamic conditions at environment temperature, atmospheric pressure and 24 h of the exposition time. T…
Using the transfer matrix method, we study the transport properties through a magnetic field modulated graphene superlattice. It is found that the electrostatic barrier, the magnetic vector potential, and the number of wells in a superlattice modify the transmission remarkably. The angular dependent transmission is bl…
The present article expounds the development of sunnhemp fiber-reinforced waste polyethylene bag composites. No surface modifications of fibers were made. Sunnhemp fibers of 25.4 mm in length with waste polyethylene bags were stacked and composite materials were fabricated using hot compression molding technique. Thes…
Nanoindentation is used to measure hardness of Ti 3 SnC 2 , a recently synthesized nanolaminate carbide. Hardness cartography and optical microscopy are used to correlate hardness values and sample phases. An indentation size effect is observed, and a bulk hardness of 9.3 GPa is deduced for Ti 3 SnC 2 . Such a value i…
Free-standing periodic mesoporous organosilica (PMO) films were grown at the interface of an ethylene-bridged organosilica and surfactant template via a self-assembly process. After the pyrolysis of the PMO films with ethylene-bridged organosilica moieties in the pore walls under an Ar flow at temperatures ranging fro…
Nanocrystalline LaOCl:Tb(3+)/Sm(3+) phosphors were synthesized by a Pechini-type sol-gel process. Under UV and electron-beam excitation, LaOCl:Tb(3+)/Sm(3+) show the characteristic emission of Tb(3+) ((5)D(3,4)-->(7)F(6),...2) and Sm(3+) ((4)G(5/2)-->(6)H(5/2,7/2,9/2)), respectively. In particular, the cathodoluminesc…