نتایج جستجو برای: cu zno zro2
تعداد نتایج: 83558 فیلتر نتایج به سال:
Cu nanoparticles (CuNPs) were successfully synthesized in situ on ZnO whiskers as a selective scaffold, which were supported in a microstructured paper matrix composed of inorganic fibers; as-prepared paper composites were easy to handle in practical use and demonstrated excellent catalytic performance in the methanol reforming process for effective hydrogen production.
A simple and convenient one-step method for synthesis of acridines and their derivatives from condensation of aromatic aldehydes, cyclic diketones, and aryl amines using Cu-doped ZnO nanocrystalline powder as a catalyst is reported. The present protocol provides several advantages such as good yields, short reaction time, easy workup, and simplicity in operation.
High-performance Cu/ZnO/(Al(2)O(3)) methanol synthesis catalysts are conventionally prepared by co-precipitation from nitrate solutions and subsequent thermal treatment. A new synthesis route is presented, which is based on similar preparation steps and leads to active catalysts, but avoids nitrate contaminated waste water.
Here, we have used a simple method for polyol synthesis, analysis, and testing of Au/Cu-doped ZnO Ultraviolet (UV) photodetectors (PD). Our results are reported discussed by X-ray diffraction (XRD) to ensure that the manufactured samples show hexagonal wurtzite structure. Transmission electron microscopy (TEM) confirmed nanoparticle growth in sample on surface, which is key improving light resp...
Cathode degradation is a key factor that limits the lifetime of Li-ion batteries. To identify functional coatings that can suppress this degradation, we present a high-throughput density functional theory based framework which consists of reaction models that describe thermodynamic and electrochemical stabilities, and acid-scavenging capabilities of materials. Screening more than 130,000 oxygen...
Colloidal solutions of ZnO-Cu nanoparticles can be used as catalysts for the reduction of carbon dioxide with hydrogen. The use of phosphinate ligands for the synthesis of the nanoparticles from organometallic precursors improves the reductive stability and catalytic activity of the system.
bond-order conservation-morse potential (boc-mp) method is used to carry out the calculationon the co2+ h20 system. one of the best catalysts for methanol synthesis in catalytic reductionof co2 with h2o is cu/zno/a1203 whose surface is supported by with some amount of pd orga. reduction of co2 with h20 on cu will result in methanol formation; while on ni will lead tomethane formation. in the me...
Thin films of ZnO, Cu-doped Cu2O and binary Cu2O/Cu-doped ZnO p-n heterojunction thin film were prepared tested for their heterogeneous photocatalytic activity in the removal three selected organic dyes: methylene blue (MB), orange (MO) Congo red (CR). The experiments carried out under UV light natural sunlight. synthesis photocatalysts was by an electrochemical deposition method resulting char...
The present work aims at further investigating a previously studied PdZn/ZrO2+SAPO-34 bifunctional catalyst for CO2 conversion. High activity and selectivity propane was proved the results obtained by NAP-XPS measurements CO adsorption liquid-nitrogen temperature (LNT) followed FT-IR spectroscopy are shown. After reduction, we confirmed formation of PdZn alloy. At LNT, Pd carbonyl IR band shows...
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