Materials Literature
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The oxygen nonstoichiometry and the crystal structure of Ba0.5Sr0.5Co0.8Fe0.2O3-δ (BSCF) were investigated by using coulometric titration, high-temperature gravimetry and in situ HT-XRD. The chemical stability diagram of BSCF was established as a function of temperature between room temperature and 1373 K and oxygen p…
During the last 50 years a significant technical advance, namely in our understanding and control of switching-surge overvoltages, has had some unintended and adverse consequences when designers took full advantage of the possibility of reduced insulator dimensions. Glaze ice accretion can produce harmful effects, esp…
Natural fibre reinforced polymer biocomposites (NFPBCs) constitute an important branch in the field of green composite materials. The work describes the fatigue behaviour of polyester biocomposites reinforced with natural sisal fibres and stacked as cross laminates with [0/90]s sequence Three-point bending static and…
We demonstrate an electrochemical technique for the large scale synthesis of high quality few layer graphene sheets (FLGS) directly from graphite using oxalic acid (a weak acid) as the electrolyte. One of the interesting observations is that the FLGS are stable at least up to 800 °C and hence have potential applicatio…
One-pot ‘grafting from’ of polystyrene on polydopamine particles was investigated using a newly developed carbonyl-azide reversible addition–fragmentation chain transfer (RAFT) agent.
We present a computer simulation study on the crystal nucleation process in suspensions of hard spheres, fully taking into account the solvent hydrodynamics.If the dynamics of crystallization in this system were purely diffusive, the crystal nucleation rate would be inversely proportional to the solvent viscosity.Howe…
:Ce/Tb hollow spheres were also used as drug delivery systems for doxorubicin (DOX) loading and release. The drug loading efficiency was measured to be 17% at a pH value of 7.4, and the pH-dependent drug release was studied. 47% of the loaded DOX was released within 10 h when pH = 5, while there was only 30% during th…
Mesoporous TiO2/WO3 hollow fibers with interconnected nanotubes were prepared by a sol–gel method using polysulfone hollow fibers as a framework template and a block copolymer as an internal template. Polysulfone fibers were immersed in a sol–gel solution and the oxides were deposited on the fibers by vacuum impregnat…
We report a highly tunable photoluminescence of rare-earth (europium, Eu3+) doped layered double hydroxides (LDHs) intercalated by an organic photofunctional anion, courmarin-3-carboxylate (C3C). Novel Eu3+-doped LDHs intercalated by C3C (ZnAlEu–LDH–C3C) with high purity and crystallinity have been successfully synthe…
Transport properties of hybrid nanoparticle based cross-linked polyethylene (XLPE)-Al2O3-clay binary and ternary nanocomposites have been investigated with special significance to the hybrid effect and synergism of hybrid nanofillers. Compiling the temperature and filler effects demonstrates the self-assembly of hybri…
This review describes the elaboration of ordered mesoporous non-oxide materials such as BN and SiBCN and the subsequent fabrication of derived monoliths by spark plasma sintering using the as-prepared powders.
Luminescent porous polymers based on octavinylsilsequioxane and triphenylamine units show tunable porosity and luminescence, a moderate uptake of CO <sub>2</sub> and high sensitivity for TNT.
Nanocrystals obtained by growing a protecting ZnS shell onto a photoactive ZnTe core afford nanocrystals that can represent alternatives to cadmium-based quantum dots.
The oxidative chemical polymerizations of three isomers of aminophenol, ortho , meta , and para (PoAP, PmAP, and PpAP), were performed in aqueous HCl using ammonium persulfate as an oxidant at 0–3°C. The synthesized polymers were characterized by employing elemental analysis, GPC, UV‐VIS‐NIR, FT‐IR, XRD, and TGA. The…
Information on the preparation and properties of starch/gelatin blend microparticles with and without crosslinking for drug delivery is presented. The blend microparticles were prepared by the water-in-oil emulsion solvent diffusion method. Glutaraldehyde and methylene blue were used as the crosslinker and the water-s…
A new variety in natural fibre and is first of its kind i.e. Palmyra Palm botanically called Borassus Flabellifer ‘petiole fibre’ is introduced in the present work. The main aim of the work is to extract the neat fibre and is characterized for its tensile and surface characteristics. The composites are fabricated by r…
Bismuth antimony (Bi <sub>1−x</sub> Sb <sub>x</sub> ) is one of the most important materials systems for fundamental materials science, condensed matter physics, low temperature thermoelectrics, infrared applications, and beyond.
Microporous nickel phosphite [Ni11(HPO3)8(OH)6] nanocrystals were prepared using a hydrothermal method, and were successfully applied as a positive electrode in a flexible all solid-state asymmetric supercapacitor. Because of the specific micro/nanostructure, the flexible solid-state asymmetric supercapacitor can achi…
We describe the synthesis of charge-stabilised gold and silver nanoparticles by a modified Turkevich method and their interaction with a selection of cationic and anionic dyes. It was found that gold nanoparticles interact strongly with cationic dyes and in some cases enhanced absorption was observed by UV-visible spe…
Nickel ferrite (NiFe 2 O 4 ) is synthesized by using auto combustion method with citric acid as a chelating agent. The formation of single phase nickel ferrite was confirmed through powder X-ray diffraction. The vibrational analysis was confirmed through fourier transform infrared spectroscopic (FTIR) analysis. The co…