Materials Literature
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The possibility of smooth transitions between biaxial smectic subphases via defect propagation is considered on the basis of our theoretical approach reported previously [Emelyanenko et al., Phys. Rev. E, 2006, 74, 011705]. The extrapolation of our results suggests an infinite number of biaxial intermediate phases, ea…
We report a new class of dipeptide dendritic structures fabricated on the surface of mica via spin casting and the conditions required to achieve them. Both their structure and formation mechanism have been investigated in detail using Atomic Force Microscopy (AFM) at the nanometre scale. Formation of nanotubular stru…
Herein we report the facile, green syntheses of three new polyoxomolybdate-based inorganic–organic hybrid materials using room temperature ionic liquid (RTIL), 1-butyl-3-methyl-imidazolium tetrafluoroborate (bmim)[BF4], as a green and reactive solvent. The organic imidazolium component of the RTIL was incorporated int…
Ordered mesoporous carbons exhibit appealing properties for many applications, but their function and performance can depend critically on their structure. The in-plane orientation of 2D cylinders from the cooperative assembly of Pluronic P123 and resol has been controlled by application of cold zone annealing (CZA).…
A ferrocene-based compartmental ligand, H2L, was synthesized by the reaction of diacetyl ferrocene with hydrazine hydrate followed by a condensation reaction with o-vanillin. [L](2-) possesses a dual coordination pocket, an inner pocket of 2 imino nitrogens and two phenolate oxygens and an outer pocket of two phenolat…
The temperature-rate dependences of strain resistance and the mechanisms of grain boundary sliding in Pb polycrystals and Pb-based alloys under active tension were investigated. The activation energy of plastic deformation and grain boundary sliding was determined. The structural mechanisms of grain boundary sliding w…
Construction of novel nanocrystal assemblies has attracted increasing interest in recent years. In this work, a general and facile ionic chelator-mediated hydrothermal method was developed to prepare one-dimensional (1D) rare earth orthovanadate (LnVO4, Ln = lanthanides) nanorod (NR) assemblies in an aqueous solution.…
Poly(o-phenylenediamine) (PoPD) submicrospheres with an average diameter of about 400 nm have been successfully synthesized in glycine solution by simply mixing o-phenylenediamine (oPD) and ammonium persulfate at room temperature. The macromolecular structure, crystallinity and thermal stability of the as-prepared pro…
We report the first study that investigates the use of molten carbonates as an effective catalyst to promote electrochemical oxygen reduction reaction (ORR) at the cathode of intermediate temperature solid oxide fuel cells (IT-SOFCs). A series of binary Li-K carbonate compositions were incorporated into the porous bac…
Black liquor is a by-product of the pulping process in the manufacture of paper. It is a complex mixture of both organic and inorganic chemicals with both chemical value and energy content. To recover these two quantities, the black liquor is concentrated to around 60 - 85 % solids concentration and fired into a recov…
Three-dimensional ordered macro–mesoporous (3DOMM) Al2O3 and In doped Al2O3 have been successfully synthesized via a dual-templating approach with a colloidal crystal template and surfactant block copolymers. The samples were characterized using X-ray diffraction (XRD), N2 adsorption–desorption, scanning electron micr…
Ni–Cr–Mo steels are widely used in machine part members, gears and shafts. Steels with higher carbon content (~1%) are used for heavy machine parts and bearings. Abrasive wear resistance is often a very important requirement for these high carbon steels, apart from sliding wear properties. In the present study, En31 s…
A commercial ion exchange resin was used to remove Cr2O72− from Cr6+-containing wastewater, which was carbonized to produce porous carbon possessing a high graphitic degree and large specific surface area. Symmetric supercapacitors based on this porous carbon exhibited superior rate capability.
Photochromic tris(phenylisoxazolyl)benzene 1 and bispyridine derivatives 2a–e were mixed in a certain ratio to generate stable gels in benzyl alcohol, 4-methoxybenzyl alcohol, and aniline. Supramolecular assembly of 1 in solution was confirmed by 1H NMR study. The Tgel value was saturated in a 2 : 3 ratio of 1 and 2c.…
Applying the Stöber method to directly coat noble metal nanoparticles (NPs) such as gold (Au) and silver (Ag) NPs with silica shells presents challenges, since the noble metal NPs are not stable in alcoholic solution and have low chemical affinity for silica. This paper describes a method which uses 11-mercaptoundecan…
In this study, we investigated the effect of fire retardants (FRs) on the combustion performance of medium-density fiber boards (MDFs) that were coated with mixtures of water, binder, calcite, and various FRs (FR coatings). We used MDF panels, calcite as the coating pigment, melamine formaldehyde as the binder, and FR…
We prepared HIPE organogels from polymer organogels which were pre-formed based on a triblock ionomer and polypropylenimine dendrimers via charge-induced assembly. The morphologies of the HIPE organogels are little changed with salt concentrations while the mechanical strength of the organogels can be tuned by PPI den…
In this study, electrospinning was performed to fabricate silk fibroin (SF) nanofibrous mats, which were used as substrates for in vitro culture of rat hippocampal neurons. The light and electron micrographs demonstrated that the electrospun SF nanofibrous mat supported the survival and growth of the attached hippocam…
X-ray crystallography is a powerful technique for studying protein-ligand interactions. Advances in techniques have meant that it is now possible to routinely determine the structures of ligand complexes in the majority of cases where crystallization conditions and protein structures are already known. Ligand soaking…
Abstract– We carried out hypervelocity cratering experiments with steel projectiles and sandstone targets to investigate the structural and mineralogical changes that occur upon impact in the projectile and target. The masses of coherent projectile relics that were recovered in different experiments ranged between 58%…