Materials Literature
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A synergistic experimental and theoretical study (DFT) highlights the impact of material design at the molecular and electronic levels on the binding affinity and interaction sites of CO2 with benzimidazole-linked polymers (BILPs); CO2 is stabilized by benzimidazole units through Lewis acid-base (N···CO2) and aryl C-H…
Poly(N-methylpyrrole) (PNMPy), poly(N-cyanoethylpyrrole) (PNCPy) and poly(3,4-ethylenedioxythiophene) (PEDOT) films have been prepared using both single and two polymerization steps for the selective determination of low concentrations of dopamine, ascorbic acid and uric acid in tertiary mixtures. Analysis of the sens…
Copper–manganese (Cu–Mn) mixed oxide catalysts were prepared by a coprecipitation technique from metal nitrates in aqueous solution using tetramethylammonium hydroxide (TMAH) as a pH regulator.
We report in this communication the synthesis of star-shaped carbon quantum dots-(poly-γ-benzyl-L-glutamate) conjugates that self-assemble into microstructures and retain the characteristic emission properties of the native dots. Dots were used either as an initiator to give a daisy-like peptide-polymer structure or a…
The NaCl-induced atmospheric corrosion of the MgAl alloy AM50 has been investigated using 99.97% Mg as reference. Polished samples were exposed up to 672 h in 95.0% RH air with 400 ppm or 0 ppm CO 2 at 22.00°C. Samples were analyzed gravimetrically and by SEM/EDX, XRD and XPS. CO 2 inhibited atmospheric corrosion with…
Novel CuO straw sheaves formed by a splitting growth process show an improved photodegradation activity of RhB.
This work shows the influence of several reactional parameters for obtaining graphene through successive steps of oxidation and exfoliation of bulk graphite (resulting in graphene oxide), followed by chemical reduction. The results showed that changes in temperature, reaction time, reducing agent and source of primary…
A tetraphenylethene-based caged compound (TPE-C) is designed and synthesized. TPE-C is non-fluorescent either in solution or in aggregated state, but its emission can be induced to emit strong cyan emission in the aggregated state by UV irradiation. This property enables TPE-C to be applied in photo-patterning and ant…
In this paper, we conduct a brief revision of the state-of-the-art on vegetable fibre-reinforced composite applications in the automotive industry. We then present some results for the dynamic characterisation of an auto part made of jute fibres and an equivalent one made of traditional glass fibres, where the increas…
Urchin-like polypyrrole (U_PPy) nanoparticles with various diameters were fabricated using a dual-nozzle electrospray and vapor deposition polymerization (VDP). Metal oxide nanoneedle-decorated PPy (FePPy) particles were fabricated as starting materials for deposition of a PPy layer on the metal oxide surface. The FeP…
Nanotechnology is an enabling technology allowing to do new things in almost every conceivable area. Initial efforts to exploit nanoscience/nanotechnology development in the construction industry focused mainly on understanding phenomena and improving performance of existing materials. Recently, polymer nanocomposites…
Over the last twenty to thirty years composite materials has been used in engineering field. Composite materials possess high strength and high strength to weight ratio, and due to these facts composite materials are becoming popular among researchers and scientists. The major proportion of engineering materials consi…
Hybrid porous polymers derived from cubic octavinylsilsequioxane and planar halogenated benzene monomers exhibit high thermal stability, tunable porosities and potential applications in carbon dioxide storage.
A Keggin cluster of H <sub>4</sub> [SiW <sub>12</sub> O <sub>40</sub> ] (H-SiW <sub>12</sub> ) has been developed to catalyze the acetalization of aldehydes and ketones under solvent-free conditions, and could be recycled at least ten times without an obvious decrease in catalytic activity.
The reaction of FeCl3 with a pincer ligand, 2,6-di(1H-pyrazol-3-yl)pyridine (bppyH2), produced a mononuclear Fe(III) complex [Fe(bppyH2)Cl3] (1), which could be reduced to the corresponding Fe(II) dichloride complex [Fe(bppyH2)Cl2] (2) by suitable reducing agents such as Cp2Co or Fe powder. 1 and 2 exhibited a reversi…
Theoretical investigation of guanine, DNA base adsorption on the ZnO model clusters, viz., Zn2O2, Zn3O3, Zn4O4 ring (R) and Zn4O4 wurtzite (W) in terms of geometry, binding site, binding energy (EB), energy gap (Eg), electronic and spectral properties were studied by a density functional theory (DFT) method. The guani…
This review provides a snapshot of recent progress in the synthesis, materials properties, and applications of conductive polymers/zeolite (nano-)composites reported until March 2014.
The strong, environment-friendly and abundantly available cellulose nanofibril (CNF) is a very interesting building block for various types of material.To facilitate the industrial use of the fibrils, their liberation from the wood fiber wall needs to be improved particularly since the process requires a substantial a…
The prospects for radial shear rolling in the lean production of small-diameter alloy-steel and alloy rods are considered. Specific applications of this technology are discussed: for example, in the automatic thermomechanical treatment of long rods with control of the deformation trajectory; in small-scale production…
In terms of production costs and manufacturing time there is a permanent effort to shorten the process chain by combining different process steps. For metastable austenitic steels there is the opportunity of an integrated surface hardening during machining. This leads to an increase of the wear resistance and fatigue…