Materials Literature
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The Fe and Ru phosphine-borane complexes CpM(CO)2PPh2 x BH3 (1, M = Fe, 4, M = Ru) were synthesized utilizing the reaction of the phosphine-borane anion Li[PPh2 x BH3] with the iodo complexes CpM(CO)2I. The Fe complex 1 reacted with PMe3 to yield CpFe(CO)(PMe3)(PPh2 x BH3) (2) and CpFe(PMe3)2(PPh2 x BH3) (3) whereas t…
The thermal annealing of silica nanospheres encapsulating Fe(3)O(4) nanocrystals and Pd(2+) complexes led to the formation of heterodimers consisting of Fe(3)O(4) and PdO nanoparticles encapsulated in a silica shell, allowing for their controllable transformation into either Fe(3)O(4)/Pd heterodimers or FePd alloy nan…
Magnetocaloric effects of Fe49(Rh1−xPdx)51 alloys with x=0.0, 0.01, 0.03, 0.06, 0.07, 0.08, and 0.09, were investigated using resistivity, magnetization, specific heat, and direct measurement of the adiabatic temperature change ΔT. Magnetization measurements yielded experimental values of the isothermal magnetic-entro…
A novel series of hetero-arylboroxines were synthesized and structurally characterized by X-ray diffraction, NMR and computational analysis. The solid-state structures of the hetero-arylboroxines represent the first report of AB(2)-type hetero-arylboroxines.
Large arrays of Pb O 2 nanowires having high aspect ratios (length-to-width ratio) were grown by potentiostatic electrodeposition into anodic alumina templates under anodic polarization. Different electrolytic solutions were used in order to obtain nanowires of pure α - Pb O 2 , pure β - Pb O 2 , and a α + β mixture.…
We have studied the performance of La 0.75 Sr 0.25 Cr 0.5 Mn 0.5 O 3 - δ (LSCM)–Cu–yttria-stabilized zirconia anodes for the direct utilization of hydrocarbon fuels in a solid oxide fuel cell (SOFC). A significant decrease in anode polarization resistance and an increase in impedance peak frequency was observed with i…
Tungsten trioxide (WO3) films doped with 0.25 atom% tellurium synthesised by a sol-gel route, show strong transient photocurrents under chopped sub-bandgap illumination (hnu=1.8 eV<Eg) at low bias potentials from 0.2 to 0.7 V; such effects are ascribed to the presence of a localized narrow band (NB) between the VB and…
During quarrying, waste stone cake is discharged as industrial waste. In this study, we attempted to convert waste sandstone cake to zeolitic materials using alkali fusion method. By varying the experimental conditions different types of the product were obtained, e.g. zeolite-X, zeolite-P, hydroxysodalite, tobermorit…
Heat engines emit huge amounts of exhaust which contain considerable quantities of heat and chemical energies. An increasing public awareness of global warming and oil depletion has required the development of innovative methods of recovering energy from such exhaust. A promising approach is to produce electricity fro…
Microstructural characteristics of warm-extruded magnesium alloy (Mg97Zn1Y2) containing long-period stacking order (LPSO) phase has been investigated using SEM and TEM as the first step to understand the effect of warm-extrusion on its mechanical property. Particular attention has been paid on the microstructural chan…
Two cyano-bridged M(III)Mn(III) [M = Fe () and Cr ()] ferrimagnetic chains are reported; exhibits metamagnetism with two critical fields of 1250 G and 2.0 T which correspond to the overcoming by the applied dc field of the inter- and intrachain magnetic interactions, respectively.
Different sized VOx hierarchical hollow spheres aggregated by small nanoparticles were synthesized via a simple template-free method for the first time. The VOx hollow spheres were characterized by TEM, SEM, SAED, EDX, XRD, FTIR and their electrochemical properties were studied using cyclic voltammetry (CV).
Chromophoric probes of naphthalimide moieties enable evaluation of their assembling behaviour photophysically through fluorescence spectroscopy and microscopy, and circular dichroism. These experiments highlight the influence of the nature of the chemical substitution of the organogelator. Very interesting results wer…
An anomalous magnetic interaction is observed in a very common and unpublished binuclear copper(ii) complex, [Cu(2)(micro(2)-OOCCH(3))(2)(bpydiol-H)(2)(H(2)O)(2)] (bpydiol-H = mono deprotonated 2,2'-bypyridine-3,3'-diol). In the complex, the two Cu(ii) ions are bridged by two acetate anions and there is a pi-pi stacki…
Abstract Er‐doped ZnO/Si hetero‐junctions have been formed by laser ablating an Er‐contained ZnO target onto p‐Si(100) substrates. Light emitting diodes fabricated by using these samples exhibited bright green (536 nm and 556 nm), red (665 nm) and 1.54 µm emissions at room temperature. A light emission at 1180 nm was…
This communication describes how the "quantized" size effect of dendrimers can be exploited towards a size selective binding mechanism for the inhibition of protein-protein binding.
Pullout test is a conventional and suitable method to investigate the effects of yarn properties and the structural characteristics of weave on fabric mechanical behaviour. Frictional specifications of the fabric yarns influence the fabric strength and efficiency and its ability to absorb energy. This paper is concern…
The dilution of fuels by exhausts gases (mainly CO, CO2 and H2O) affects the kinetics of combustion. This dilution is used in gas turbines and flameless combustor. It helps reducing pollutant emissions, particularly NOx. Therefore, it is useful to study the effect of such compounds on the kinetics of oxidation of fuel…
A new two-terminal circuit element-called the memrirtorcharacterized by a relationship between the charge q(t) s St% i(7J d7 and the flux-linkage (p(t) = J-‘-m vfrj d T is introduced os the fourth boric circuit element. An electromagnetic field interpretation of this relationship in terms of a quasi-static expansion o…
The fundamental properties of thermal hydrogen desorption for Inconel 625 and SUS 316L for face-centered-cubic(FCC) metals have been analyzed. Then, the high-pressure-gas charging of hydrogen has been substituted by electrolysis charging. Hydrogen was charged into Inconel 625 and SUS 316L in H2SO4 with or without NH4S…