نتایج جستجو برای: tungsten trioxide wo3
تعداد نتایج: 17157 فیلتر نتایج به سال:
Methane (CH4) upgrading into liquid oxygenates under mild conditions is of great significance to sustainable energy and clean environment, whilst holds challenges achieving superior activity selectivity. Herein, tungsten oxide (WO3) modified with palladium (Pd) nanoparticles oxygen vacancies (OVs) was employed as dual reaction sites drive CH4 conversion O2 at room temperature. Optimized Pd0.5-d...
New mesoporous and well-structured aerogel catalysts (CeO2–TiO2, WO3–TiO2 WO3–CeO2–TiO2) were elaborated via the sol–gel method, characterized by means of various techniques (XRD; N2-Physisorption at 77 K; NH3-TPD; H2-TPR; DRUV–Vis spectroscopy) evaluated in selective catalytic reduction (SCR) NO NH3. The results reveal that all develop essentially diffraction peaks TiO2 anatase phase are class...
The paper presents results of the study electrochemical reduction tungsten(VI) oxide in a melt eutectic composition 52 mol% CaCl2 and 48 NaCl at liquid gallium electrode. Scanning electron microscopy X-ray diffraction methods were used to microstructures obtained powders. Rietveld method which is based on patterns calculate quantitative content phases WO3 products. thermodynamic properties elec...
Dimensionalities of materials have more profound connotations than barely the external morphologies. The mechanical, optical, electrical, and magnetic properties a certain material can be significantly influenced by spatial degrees freedom interactions/excitons. Herein, how multidimensionalities affect their physicochemical from perspective photoactive tungsten oxide (WO3) materials, which furt...
Laser photolysis of WCl(6) in ethanol and a specific mixture of V(2)O(5) and VCl(3) in ethanol lead to carbon modified vanadium and tungsten oxides with interesting properties. The presence of graphene's aromatic rings (from the vibrational frequency of 1,600 cm(-1)) together with C-C bonding of carbon (from the Raman shift of 1,124 cm(-1)) present unique optical, vibrational, electronic and st...
This work concerns development of alternative antifouling paints for marine applications using composite metal oxides derived from TiO2 and WO3. Composite with a variety tungsten content were prepared via sol–gel process titanium isopropoxide sodium tungstate dihydrate as the precursors. The crystalline phase, bandgap energy, morphology, surface structure, electronic states synthesized products...
Oily wastewater generated from various industrial processes and oil spillages is a massive threat to the environment human health. Hence, it essential develop novel material for practical oil/water separation recovery. By incorporating WO3 (tungsten oxide)/ N-CQDs (amino-functionalized carbon quantum dots) into matrix of polymer, alteration wettability behavior electrospun PLA fiber reported in...
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