The corrosion behavior of hot-pressed lutetium disilicate (Lu2Si2O7) bulk sample in static state water vapor environment was examined at 1300 °C. The apparent corrosion rate was estimated as 1.427 × 10−6 g/cm2 h. The X-ray diffraction pattern showed a trace of Lu2O3 phase on the sample surface...

Open edge BN boron-nitride has a stable graphene-like structure, which could be doped by a range of impurities, so the band gap could be tuned. The optical, electrical, physicochemical properties, NBO and electron density of open edge BN that is doped by Yttrium was evaluated using DFT method as...

Catalytic effects of metals, which are often involved in the fabrication of silicon nitride product, on the direct nitridation of silicon were investigated. Silicon granules impregnated with 0.125–2.0% by mass of ytterbium, yttrium, calcium, lutetium, magnesium or cerium were nitrided in a tubu...

The reaction of several rare earth (RE) metals (RE = Y, La, Ce, Pr, Eu, Gd, Tb and Lu) with gaseous hydrogen and the subsequent reaction of the resulting hydrides with nitrogen gas have been investigated by means of a combinatory approach of thermogravimetric and differential thermal analysis. F...

A novel hexadecachloro-substituted terbium(III)phthalocyaninate was synthesised and identified by mass-spectrometry, infrared and UV–Vis spectroscopies. Its elemental composition was proved using high resolution mass spectrometry, while thermal analysis revealed sufficiently high thermal stabil...

Selective aerobic oxidation of thiols to disulfides without any over oxidized products is studied using cryptomelane type manganese oxides (K-OMS-2) with a tunnel structure as catalysts. Using K-OMS-2 prepared by different synthetic procedures, complete conversion was obtained under air atmosphe...

The manganese oxides electrode material for electrochemical capacitor has been prepared with degreasing cotton as templates. The microstructure characterization figured that the constructed quasi-columnar formation is composed of manganese oxides nanoparticles after removal of template. The gene...

Experimental and theoretical investigations of a sulfur-33 electric-field-gradient (EFG) tensor of disulfide bonds in 33S-labled dibenzyl disulfide have been presented. Temperature dependence of quadrupolar frequencies, νQ, is observed in the temperature range between 80 and 280 K, in which sin...

An important recent development in metal disulfide chemistry is the 2001 synthesis by Adams et al. of Mn2S2(μ-CO)(CO)6 containing both a bridging disulfide ligand and a bridging carbonyl group. During the ensuing decade this manganese complex has proven to be a key intermediate for the synthesi...

In this work, the absorption and purification of H2S by palladium-copper liquid phase catalysis solution applied voltage was performed. The effects of electrochemical conditions, oxygen concentration, electrode material, voltage intensity and electrode plate spacing on the electrohydraulic syner...

The condensation reaction of 1,2-bis(2′-aminophenoxy)benzene with 2-pyridinecarbaldehyde in a mole ratio of 1:2 gives a new Schiff base ligand (L). Four Schiff base complexes, CoL(NO3)2 (1), NiLCl2 (2), ZnL(NO3)2 (3) and Pd2LCl4 (4) have been prepared by direct reaction of the ligand (L) and ap...

Thermoelectric (TE) materials, which can directly convert waste heat into electric power, have attracted considerable interest because of their reliability and great potential for practical applications, especially in the current time faced with energy shortage. Recent advances in developing TE ...

The economically important platinum-group elements (PGE) are known to be mobile in the surface weathering environment, but their mobility in the presence of soil organic matter under surficial conditions has been poorly constrained so far. In this paper, the behavior of synthetic platinum-group ...

A new palladium chelate compound is described for the determination of sulfide in aqueous samples. The reagent, bis(2-aminobenzoate)palladium(II) (PdA2), was prepared by reaction of tetrachloropalladate (PdCl4−) with 2-aminobenzoic acid. The compound was characterized by infrared spectroscopy an...

The involvement of carbon nanohorn (CNH) in molybdenum sulfide (MoS2) and polydopamine (PDA)/palladium nanoparticles (Pd NPs) was studied for the hydrogen evolution reaction (HER) efficiency. In this research, the in-situ hydrothermal and PDA-assisted chemical reaction routes were adopted to syn...

A novel nanohybrid based on palladium sulfide nanoparticles uniformly dispersing on heterostructure of MoS2/nitrogen-doped graphene (PdxSy-MoS2/N-GR) was developed for catalyzing oxygen reduction reaction in alkaline medium. The nanohybrid demonstrated effectively catalytic performance with a po...

Discrimination of iron oxide and hydroxide mineral assemblages is a key factor in porphyry copper exploration. This paper investigates the ability of the Worldview-3 VNIR data in mapping iron oxide / hydroxide minerals associated with the porphyry copper mineralization. The study area is situate...

Bulk Cu compounds such as Cu(OH)2 are extensively used as pesticides in agriculture. Recent investigations suggest that Cu-based nanomaterials can replace bulk materials reducing the environmental impacts of Cu. In this study, stress responses of alfalfa (Medicago sativa L.) seedlings to Cu(OH)2...

Recently, mimic enzymes have obtained particular interest by their high activity, stability, and biocompatibility. In this work, by coupling copper hydroxide nanozyme and G-quadruplex/hemin DNAzyme to form a double-integrated mimic enzyme, a visual, sensitive and selective immunosensor was estab...

The complexation of copper and 1,10-phenanthroline (phen) in the presence of the [B12H12]2− anion is studied in organic solvents. The starting reagents contain copper(I) salts. The reactions are carried out in air and accompanied with oxidation of copper(I). Varying solvents and starting reagent...