Materials Literature
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Abstract A cyanide-bridged tetranuclear complex, [Co2Fe2(CN)6(tp*)2(dmbpy)4](PF6)2·4CH3CN (1·4CH3CN) (tp*: hydrotris(3,5-dimethylpyrazol-1-yl)borate and dmbpy: 5,5′-dimethyl-2,2′-bipyridine), was synthesized and its magnetic properties were investigated. Magnetic susceptibility measurements revealed that 1 exhibited a…
Zinc oxide (ZnO) nanoparticles (NPs) are being widely utilized in industry due to their versatile properties. The in vitro cytotoxicity findings and the potential for exposures to ZnO NP from different sources via different routes of entry into the body have raised public health concerns. Although recent studies have…
Annealing in the transmission electron microscope allows direct comparison of the same nanoporous carbon scaffold particles following dehydrogenation of the confined LiBH 4 . At a nominal temperature of 200 °C, a granular crust of cubic and cuboidal LiH nanocrystals ∼8–15 nm wide grew on the outer surface of the scaff…
The phenyl-iron complex of 5,10,15-tritolylcorrole was prepared by reaction of the starting chloro-iron complex with phenylmagnesium bromide in dichloromethane. The organometallic complex was fully characterized by a combination of spectroscopic methods, X-ray crystallography, and density functional theory (DFT) calcu…
The microstructure and corrosion behavior of as-cast Mg-1.5Zn-0.6Zr alloy and a comparative AZ91D alloy were investigated through metallographic observations, X-ray diffraction, electron probe micro-analysis, immersion tests, and cyclic polarization measurements. The Mg-1.5Zn-0.6Zr exhibited a single-phase solid solut…
We report a micro-Raman-based optical method to measure in-plane thermal conductivity of ultrathin films. With the use of 20-nm-thick SiO2 substrates that assure in-plane heat transfer, sub-100-nm Bi films and Al2O3 films as thin as 5 nm were successfully measured. The results of Bi films reveal that phonon boundary s…
This book is an authoritative account of the nuclear weapons inspections regime in Iraq from 1991 to 1998. Without a proper understanding of those years, the 2003 US invasion of Iraq after a futile WMD search remain unintelligible. In the 1990s, after adapting to a completely new kind of intrusive inspections with unp…
The phenomenon of surface self-healing in C60-based polymer coatings deposited by ion-beam assisted physical vapor deposition was investigated. Nanoindentation of the coatings led to the formation of a protrusion rather than an indent. This protrusion was accompanied by an abnormal shape of the force-distance curve, w…
Based on the actual need of development and application of hemp-blending product and the mechanical property as well as evenness property test of blended yarn with different contents of hemp, the factors influencing the mechanical property of hemp-blended yarn as well as its structural characteristics were analyzed an…
Temperature dependence of intramolecular energy transport in perfluoroalkane oligomers with a chain length of 3-11 carbon atoms terminated by a carboxylic acid moiety on one end and a -CF2H group on another end was studied in solution experimentally and theoretically. Experiments were performed using a dual-frequency…
Silicon nanocrystals (Si NCs) for 3rd generation photovoltaics or optoelectronic applications can be produced by several industrially compatible physical or chemical vapor deposition technologies. A major obstacle for the integration into a fabrication process is the typical annealing to form and crystallize these Si…
The present paper reports synthesis and photoluminescence studies of cadmium tungstate (CdWO4) and cerium-doped cadmium tungstate. The samples were synthesised by low cost and low temperature hydrothermal method and characterised by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), transmission…
Nonlocal elasticity models in continuum mechanics can be treated with two different approaches: the gradient elasticity models (weak nonlocality) and the integral nonlocal models (strong nonlocality). This paper focuses on the fractional generalization of gradient elasticity that allows us to describe a weak nonlocali…
Abstract BACKGROUND To remove toluene (a representative volatile organic compound ( VOC )) from a waste gas stream, catalytic oxidation was utilized over Cu/Clinoptilolite– CeO 2 nanocatalyst. The nanocatalyst with different loadings of Cu (5, 10, 15 wt%) was sonochemically synthesized and its performance in catalytic…
The ferrimagnetic spinels $\mathrm{Mn}{B}_{2}{\mathrm{O}}_{4}$ ($B=\mathrm{Mn}$,V) exhibit a similar series of closely spaced magnetic and structural phase transitions at low temperatures, reflecting both magnetic frustration and a strong coupling between the spin and lattice degrees of freedom. Careful studies of exc…
The retention and adhesion of melamine formaldehyde (MF) microcapsules on a model fabric surface in aqueous solution were investigated using a customised flow chamber technique and atomic force microscopy (AFM). A cellulose film was employed as a model fabric surface. Modification of the cellulose with chitosan was fo…
Stereo diblock poly(lactide)s (SDB‐PLAs) composed of relatively short poly( D ‐lactide) (PDLA) and relatively long poly( L ‐lactide) (PLLA) segments were synthesized, and the effects of incorporated short PDLA segments on crystallization behavior of SDB‐PLAs were investigated after melting at 200 °C, at which only hom…
The dissociation behavior of surface-grafted polyelectrolytes is of interest for the development of stimuli-responsive materials. Metal-chelating polyelectrolyte brushes containing acrylic acid (PAA) or hydroxamic acid (PHA) chelating moieties were grafted from the surface of polypropylene (PP). Fourier transform infr…
Sodium‐doped ZnO (ZnO:Na) nanowires were grown with a high‐pressure pulsed‐laser deposition process on silicon substrates using sputtered gold particles as catalysts. The introduction of sodium dopants into ZnO nanowires was confirmed by both X‐ray diffraction spectrum and X‐ray photoelectron spectroscopy. The morphol…
BaFe 2 (As, P) 2 thin films were grown by molecular beam epitaxy. Single phase and c -axis oriented thin films were obtained on both LaAlO 3 (LAO) and MgO substrates. The critical temperature ( T c ) of the thin films grown on LAO substrates showed a P content dependence very similar to single crystals, while those gr…