Materials Literature
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Aluminum and its alloys are widely used in so many applications owing to their important characteristics. The use of aluminum gets limited due to its corrosion when exposed to aggressive environments, especially those containing chloride ions. In this work, the effects of 3-amino-1,2,4-triazole-5-thiol (ATAT) on the i…
In order to obtain clay-nanocomposite materials, intercalants should possess opposite charge with clay surface so that the cationintercalant ion-exchange reaction between clay layers took place.It was shown that chitosan, a natural biopolymeric cation, is a promising candidate to modify montmorillonite as absorbent.Ch…
CdS quantum dots of face centered cubic (fcc) and hexagonal close packed (hcp) structures were synthesized from sulphur source of sodium sulphide and thioacetamide respectively via microwave-hydrothermal method. The synthesized quantum dots were characterized using X-ray diffraction (XRD), transmission electron micros…
Nanocrystalline particles of lead sulphide and cobalt doped lead sulphide were prepared by a hydrothermal method. The crystalline nature and particle size of the samples were characterized by powder X-ray diffraction analysis (XRD). The thermal stability of nanocrystals was studied by thermo gravimetric analysis (TGA)…
The paper presents a study of the stability of cellulose and synthetic papers exposed to various methods of accelerated ageing. Particular consideration was given to the optical and mechanical stability of six paper samples (one film synthetic paper, two fibre synthetic papers, one lignin-free paper of higher quality…
Nanoporous palladium and palladium alloys are expected to have improved mass transport rates and cycle life compared to bulk materials for energy storage and other applications due to high ratios of surface area to metal volume. Preparation of such materials with high thermal stability and well-controlled metal compos…
Flexible composite films with a high cellulose nanowhisker (CNW) content of up to 75% by weight were produced by casting from aqueous solution with water soluble cellosize (CS). The surface topography of the films displayed an aggregated morphology influencing the surface roughness and light transparency properties of…
Over the past decade, there has been a strong growing interest in using several forms of chitosan, more specifically nanofibers, for various biomedical applications. Chitosan has several impressive biological characteristics including but are not limited to its great biocompatibility and biodegradability, anti-bacteri…
We have synthesized a series of cluster assembled materials in which the building blocks are As(7)(3-) clusters linked by group 12 metals, Zn, Cd and Hg, to investigate the effect of covalent linkers on the band gap energy. The synthesized assemblies include zero dimensional assemblies of [Zn(As(7))(2)](4-), [Cd(As(7)…
Numerical simulations are now an actual option in order to try to reproduce and understand the mechanical response in components subjected to extreme loading conditions, like in a ballistic impact. A correct materials calibration is therefore necessary in order to extract the materials parameters. In this work the sim…
A novel supramolecular electron donor-acceptor hybrid (2·1) and an electron donor-acceptor conjugate (3), both exhibiting a remarkably shifted Q band in the NIR region of the solar spectrum, were prepared. Irradiation of the supramolecular ensemble 2·1 within the visible range leads to a nanosecond lived radical-ion p…
Anchoring functional moieties on the surface of graphene is an important step in the processing of graphene for numerous applications. In this article, the effects of two different functionalization methods on graphene viz. the conventional method involving ultrasonication in acids and a novel polyelectrolyte based me…
We report the investigation of temperature-dependent magnetic properties and photocatalytic activity of CoFe2O4−Fe3O4 magnetic nanocomposites (MNCs) synthesized by hydrothermal process. Room-temperature magnetic hysteresis (M-H) loops result enhanced saturation magnetization of 90 emu/g and coercivity ( HC ) of 530 Oe…
The effect of surface treated sisal fiber on the mechanical, thermal, flammability, and morphological properties of sisal fiber (SF) reinforced recycled polypropylene (RPP) composites was investigated. The surface of sisal fiber was modified with different chemical reagent such as silane, glycidyl methacrylate (GMA),…
Ladder type 1D coordination polymers were synthesised with the aim to improve the spin crossover properties of the iron(II) complexes following the concepts of crystal engineering. A wide hysteresis loop (34 K) was observed if rigid linkers were used. The first X-ray structure for a 1D iron(II) ladder is reported.
The controlled nucleation and growth of dispersed nanosized calcium, aluminum layered double hydroxide [Ca2Al(OH)6DDS]·H2O (CaAl-DDS) in dodecylsulfate (DDS) derived reverse micelles has been investigated. Five different inverse micelle compositions were studied, with water:DDS (w) = 10, 20, 30, 40, and 50. These cond…
A Zn2+ specific GdDOTA derivative containing two bis-(3-pyrazolyl) units was prepared and characterized. Unlike a previously reported Zn2+ binding agent, the new agent binds to human albumin both in the presence and absence of Zn2+.
Hierarchical porous materials have received much attention in recent years owing to their important applications in many fields. In this paper, we demonstrate the fabrication of porous ZnO nanoplates on zinc foil. The precursor hydrozincite was synthesized by the reaction of zinc foil and urea solution in a teflon-lin…
Nanophase materials with an average grain size in the range of 1 to 50 nm have attracted research interest for more than a decade since their physical properties are quite different from that of their bulk micron-sized counterparts. The properties of magnetic materials are highly dependent on its particle size. The sy…
The antiwear performance of the modified nanodiamond (ND) as an additive to commercial oils was studied. The surface modification and ultrasonic treatment allow the introduction of ND into oils without significant agglomeration. The ND in oils displayed a high colloidal stability for prolonged times. Two fractions of…