نتایج جستجو برای: tungsten oxide
تعداد نتایج: 186144 فیلتر نتایج به سال:
The stable and efficient supercapacitor investigation synthesized tungsten-based oxides using many approaches. impact of the tungsten precursor on product was significant in this research, most important consequences are highlighted. Supercapacitors other energy storage devices have been tungstate metal oxide because its high electrical conductivity as well low manufacturing costs. This article...
Hexagonal (h-WO3) mesocrystals with biconical morphology were prepared by a straightforward ionic liquid-assisted hydrothermal route and investigated as anodic materials for lithium-ion batteries. Compared to the alternatives, the biconical tungsten trioxide mesocrystal exhibited excellent lithium insertion with good cyclability and rate capability, making it a promising candidate as the anode ...
1310 Communications to the Editor cuff inflation is seldom seen, and an increase of 1 ml or less in cuff volume can markedly increase LW? What can be done to minimize the possibility of cuff-induced tracheal damage? First, select the largest endotracheal tube that can be inserted atraumatically. A greater cross-sectional area ratio between the tube and the trachea means less air must be injecte...
Composite TiO2-WO3 oxide materials were prepared by a single pot microemulsion method and studied during calcination treatments under dry air in order to analyze the influence of tungsten on the behavior of the dominant titania component. To this end, the surface and bulk morphological and structural evolution of the solid precursors was studied using X-ray diffraction and infrared spectroscopy...
Temperature-dependent in situ W L3-edge X-ray absorption spectroscopy has been performed at 20–500 ‡C to investigate the geometric environment and electronic structure of tungsten upon the transformation of electrochromic peroxopolytungstic acid to tungsten trioxide. The temperature-dependent variation of the coordination number and bond distance of the nearest (W–O) sphere reveals that the per...
Tungsten trioxide is the second most commonly used semiconducting metal oxide in gas sensors. Semiconducting metal oxide (SMOX)-based sensors are small, robust, inexpensive and sensitive, making them highly attractive for handheld portable medical diagnostic detectors. WO₃ is reported to show high sensor responses to several biomarkers found in breath, e.g., acetone, ammonia, carbon monoxide, h...
The title compound, Rb(8)[W(2)O(4)(SO(4))(6)], was precipitated from a melt of tungsten(VI) oxide and rubidium sulfate in rubidium disulfate. The unit cell contains two discrete [{W(VI)O(2)(SO(4))(2)}(2)(μ-SO(4))(2)](8-) units connected by Rb-O coord-ination. The W atom is octahedrally surrounded by two oxide ligands, two terminal sulfate ligands and two bridging sulfate groups. One Rb atom is ...
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