نتایج جستجو برای: molybdenum trioxide nanoparticles
تعداد نتایج: 125158 فیلتر نتایج به سال:
A simply and facilely synthesized MoO3 solution was developed to fabricate charge injection layers for improving the charge-injection properties in p-type organic field-effect transistors (OFETs). By dissolving MoO3 powder in ammonium (NH3) solvent under air atmosphere, an intermediate ammonium molybdate ((NH4)2MoO4) precursor is made stable, transparent and to be spin-coated to form the MoO3 i...
The aim of the present study was to explore the preparation of arsenic trioxide (As2O3) nanoparticles and examine the antitumor effects of these nanoparticles on NB4 cells. As2O3 nanoparticles were prepared using the sol-gel method and characterized using transmission electron microscopy and energy dispersive spectroscopy. The results indicated that the As2O3 nanoparticles prepared in the prese...
The formation of the crystalline phases M2, M1, orthorhombic MoO3, and a tetragonal M5O14 (M=Mo,V,Nb) type phase during heat treatment of an amorphous Mo-V-Te-Nb oxide precursor in helium is investigated applying in-situ X-ray diffraction. The precursor was synthesized by precipitation, spray-drying and subsequent calcination of the dried orange powder in air at 275°C. Crystallization of M2 sta...
Precise tunability of electronic properties of two-dimensional (2D) nanomaterials is a key goal of current research in this field of materials science. Chemical modification of layered transition metal dichalcogenides leads to the creation of heterostructures of low-dimensional variants of these materials. In particular, the effect of oxygen-containing plasma treatment on molybdenum disulfide (...
Inhalation studies of molybdenum trioxide (MoO3) were conducted because of its wide use in industry, human exposure, and lack of data on carcinogenicity. Groups of 50 male and 50 female F344/N rats and B6C3F1 mice were exposed to MoO3 by inhalation at 0, 10, 30, or 100 mg/m3, 6 h/day, 5 days/week, for 2 years. In both rats and mice, survival and mean body weights of exposed groups of males and ...
In situ X-ray absorption spectroscopy (XAS) under reaction conditions of selective propene oxidation was employed to elucidate the local structure of as-prepared and activated molybdenum oxide supported on hollow vapor-grown carbon nanofibers (VGCNF). The local structure of asprepared MoxOy-VGCNF was very similar to that of hexagonal MoO3. During heat treatment in propeneand oxygen-containing a...
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