Materials Literature
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We report herein on a study of the electrical double layer capacitance of microporous activated carbon fibers electrodes as a function of the concentration of the electrolyte in aqueous solutions. The accessibility of the subnanopores in the electrode-to-ion adsorption decreases as the ionic strength of the solutions…
The use of bis-trimethylsilylamide transition-metal complexes soluble in organic solvents offers new perspectives for the synthesis of metal chalcogenide cluster molecules, especially for multicomponent clusters. This is illustrated by the synthesis of the mixed cadmium-manganese chalcogenide clusters [Cd(4)Mn(6)Se(4)…
Monodispersed spherical particles of silica/surfactant hybrid with the particle size of 200−400 nm were successfully synthesized by a microfluidic reaction for nucleation and subsequent growth process under ambient condition and were transformed into nanoporous spherical particles with uniform pore size of ca. 2 nm an…
Room-temperature ferromagnetism of an organic discotic liquid crystalline compound (DLC) is achieved by intercalation at low levels with paramagnetic iron(III) phthalocyanine (see figure). These ferromagnetic DLCs are very similar to the so-called dilute magnetic semiconductors of inorganic nature. It is expected that…
Graftwerk: Primary amines grafted onto mesoporous aluminosilicas act as efficient, recyclable bifunctional catalysts for the one-step co-operative catalytic Henry reaction of substituted benzaldehydes and nitromethane, irrespective of the nature of solvents used for the grafting process.
Abstract This article describes the fabrication of solid and porous polylactide (PLA)‐multiwall carbon nanotube (MWNT) composites prepared using melt blending and subsequent batch processing of porous structures. The morphology and thermal, rheological and electrical properties of the PLA‐MWNT composites prepared with…
We combine reactivity studies with infrared reflection absorption spectroscopy to provide molecular-scale insights into the oxidation of two cyclic alcohols, cyclohexanol and 2-cyclohexen-1-ol, by atomic oxygen adsorbed on Au(111). The two alcohols share common features in their reaction pathways: they are both activa…
Second generation poly(amidoamine) (PAMAM) dendrimers were synthesized and peripherally modified with glutamic acid (PAMAM-MG) as a shell. The effect of the dendrimers on the crystallization of different calcium phosphate compounds was investigated in both double and one way diffusion systems. It was found that the cr…
There is strong support in favor of an unusual ${s}_{\ifmmode\pm\else\textpm\fi{}}$ superconducting state in the recently discovered iron-based superconductors in which the gap parameter has opposite signs in different bands. In this case, scattering between different bands by impurities has a pair-breaking effect and…
ADVERTISEMENT RETURN TO ISSUEPREVNoteNEXTGlass Transition Temperatures of Styrene/4-BrStyrene Copolymers with Variable Co-Monomer Compositions and Sequence DistributionsAlan E. Tonelli†*, Young K. Jhon‡§, and Jan Genzer§View Author Information† Fiber & Polymer Science Program, North Carolina State University, Campus B…
Two alignment strategies are introduced to assemble and align template-grown gold nanowires with submicron diameters. Multiple nanowires are effectively assembled across large areas on hydrophilic templates by exploiting the low interfacial tension at the water–chloroform interface. To achieve single nanowire alignmen…
Abstract Evolution of the surface characteristics of EPDM elastomer was studied as a function of thermal ageing at 80°C and 120°C in air for up to 100 days. The components of the surface free energy (SFE) were determined from contact angle measurements of five liquids using acid–base regression and Fowke's theories. S…
The conduction process of phase-change-memory (PCM) devices in the amorphous high-resistance state is described by a trap-limited transport model. Based on numerical simulations of the barrier lowering in a potential landscape due to localized charged states, we propose a physically based analytical hopping model acco…
The synthesis through reaction of a C(alpha),C(ortho) dilithiated phosphazene with CuBr and structural characterization of the first example of a binuclear mixed valence [Cu(I)(N(2))/Cu(III)(C(4))] complex showing a metal-metal bond, as well as its applications in cyclopropanation and oxidation reactions, are describe…
Abstract Recent time's polymer waste disposal is a challenging task as the quantity of polymer waste is increasing day by day. Here particulate composites have been developed from recycled poly(ethylene terephthalate) filled with flyash. Flyash of different particle sizes have been used, and effect of particle size an…
Novel and surprising biological properties were disclosed for the platinum(II) complex cis-diiodidodiisopropylamineplatinum(II). Remarkably, this new platinum(II) complex manifests pronounced antiproliferative properties in vitro, in some cases superior to those of cisplatin. A peculiar reactivity with the model prote…
Abstract Methylene diphenyl diisocyanate (MDI) affects the morphology, rheological, mechanical, and relaxation properties, as well as tendency to crystallize of PET in PET/PC/(PP/EPDM) ternary blends produced by the reactive extrusion. Irrespective of the blend phase structure, the introduction of MDI increases the me…
In this paper we use density functional theory calculations to investigate the structure and the stability of different SiC cagelike clusters. In addition to the fullerene family and the mixed four and six membered ring family, we introduce a family based on reconstructed nanotube slices. We propose an alternative syn…
A wide view, submillisecond response, and single-cell-gap transflective display using a blue-phase liquid crystal (BPLC) is proposed. To balance the optical phase retardation between transmissive (T) and reflective (R) regions, in-plane protrusion electrodes are formed with different gaps in the two regions. This disp…
Abstract Temperature‐dependent Raman studies on Na 2 WO 4 and Na 2 MoO 4 crystals were performed in order to obtain information on structural changes induced by temperature evolution. The stability of the cubic phase of Na 2 WO 4 and Na 2 MoO 4 crystals was assessed and our results indicate that this phase is stable i…