Materials Literature
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Electrochemical behavior of localized carbon dioxide (CO2) corrosion of X65 mild steel at 80°C in 0.1, 1.0, 10, and 20 wt% sodium chloride (NaCl) solutions have been investigated using electrochemical techniques including linear polarization resistance (LPR) and electrochemical impedance spectroscopy (EIS). Surface mo…
Souring and microbiologically influenced corrosion (MIC) caused by sulfate-reducing bacteria (SRB) are major problems in the oil and gas industry as well as other industries such as water utilities. SRB biofilms are notoriously difficult to treat. More effective dosing of biocides is desired to deal with increasing en…
Ferromagnetic nanostructures have been electrodeposited within the pores of porous silicon templates with average pore diameters between 25 and 60 nm. In this diameter regime, the pore formation in general is accompanied by dendritic growth resulting in rough pore walls, which involves metal deposits also offering a b…
A clathrate containing lithium: K8LixGe44−x/4□2−3x/4 constitutes the first intermetallic clathrate-I containing lithium. Different to the clathrate phases formed with other alkali metals, Li does not occupy positions within the polyhedral cages but substitutes Ge in the host framework.
In addition to unconventional high-T(c) superconductivity, the iron arsenides exhibit strong magnetoelastic coupling and a notable electronic anisotropy within the a-b plane. We relate these properties by studying underdoped Ba(Fe(1-x)Co(x))2As2 by x-ray diffraction in pulsed magnetic fields up to 27.5 T. We exploit m…
CdSe quantum dots (QDs) have traditionally been synthesized in organic phase and then transferred to aqueous solution by functionalizing their surface with silica, polymers, short-chain thiol ligands, or phospholipid micelles. However, a drastic increase in the hydrodynamic size and biotoxicity of QDs may hinder their…
Magnesium alloys have been attractive to designers due to their low density (two thirds that of aluminium), the sixth most abundant on earth, is ductile and the most machinable of all the metals. This has been a major factor in the widespread use of magnesium alloy castings and wrought products, powder metallurgy comp…
Abstract Three types of chitosan–glutaraldehyde (Chi–Glu) crosslinked copolymer materials were prepared at various Chi–Glu weight ratios (i.e., 1 : 0.0835, 1 : 0.334, and 1 : 0.585) and variable reaction times. The corresponding Chi–Glu copolymer materials were imbibed in CuSO 4 solution to yield impregnated materials…
The wide use in various fields and the great potentials in biomedical applications of carbon nanotubes highlight the need to study their toxicity and biocompatibility for recent years. This work aimed to investigate the cytotoxicity of carbon nanotubes on human embryonic lung fibroblast cells and their inter-related a…
The "acid doping" of a methyl-capped aniline trimer, N-[4-(dimethylamino)phenyl]-N-(4-{[4-(dimethylamino)phenyl]imino}-2,5- cyclohexadien-1-ylidene)-amine (TANI), was performed stoichiometrically to study the nature of charge carriers induced by the acid protonation process. The redox centers in TANI were found to und…
A low-cost green and reproducible yeast (<em>Saccharomyces cerevisiae</em>) mediated biosynthesis of cobalt ferrite nanoparticles is reported. The synthesis is performed at close to room temperature in the laboratory. X-ray, Fourier transform infrared spectroscopy and high resolution transmission electron…
Thiophene oligomer nanoparticles (NPs) were studied by fluorescence spectroscopy and electrogenerated chemiluminescence (ECL). Distinct spectroscopic differences between aggregates or NPs of thiophene hexamers having differing substitution patterns of solubilizing alkyl groups were observed. The α,ω-unsubstituted thio…
The association of natural polymers with silica is a fruitful strategy to design novel hybrid structures with potential applications in the fields of biotechnology, medicine, and environmental sciences. Here we illustrate the principles of formation, the structure, and the properties of such biohybrid systems by the s…
Polarization-insensitive guided-mode resonance (GMR) filters have significant role in applications such as optical communication systems. Here, we report the design and fabrication of two types of simple-structured one-dimensional (1D) GMR gratings with non-polarizing resonance properties under normal incidence. A sin…
We report a systematic study of the electrical properties of ZnO films prepared by galvanostatic electrodeposition from an aqueous zinc nitrate solution. The structural characterization of the ZnO films electrodeposited at various applied current densities and deposition temperatures are carried out with XRD and FESEM…
Abstract Silane coupling agent (SCA) plays an important role in the improvement of adhesive properties of the silicone rubber (SR) sealant. In this study, three trifunctional silane coupling agents, (γ‐aminopropytriethoxysilane (APTES), (γ‐Glycidoxypropyl) methyldimethoxysilane (GDMMS), and 3‐(Trimethoxysilyl)propyl m…
Abstract The crystallization behavior of isotactic polypropylene (iPP) induced with various concentrations of the β‐form nucleating agent aryl amide derivative (TMB‐5) at different temperatures was investigated with synchrotron small‐angle X‐ray scattering and wide‐angle X‐ray scattering (WAXS) and polarized optical m…
Abstract With the use of ab initio density‐functional theory (DFT) and electron diffraction calculations, the crystal structures of a carbon ‘C 8 phase’ are found. Total energies and electron diffraction patterns are calculated for all possible known to date candidates, namely supercubane, tetrahedral, BC‐8 and sodali…
New light materials are currently inserted in world strategies of transport vehicle industry since the environment necessities for pollution and reduction of fuel consumption. There‐ fore the industry takes part of the risk of development of such alloys but, in fact, some of this has been made at academic level. Some…
We present the results of calculations of SrTiO 3 and CaTiO 3 polar (111) surface relaxations, rumplings, energetics, optical band gaps, and charge distributions using the ab initio code CRYSTAL and a hybrid description of exchange and correlation. We have calculated the surface relaxation of the two possible terminat…