Au nanoparticles supported on ZrO2 enhance its surface acidic/basic properties to produce a high yield of methanol via the hydrogenation CO2. Amorphous ZrO2-supported 0.5–1 wt.% catalysts were synthesized by two methods, namely deposition precipitation (DP) and impregnation (IMP), characterized variety techniques, evaluated in process CO2 methanol. The DP-method highly advantageous over IMP-met...

Research on the synthesis of nanomaterials using metal-organic frameworks (MOFs), which are characterized by multi-functionality and porosity, as precursors have been accomplished through various synthetic approaches. In this study, copper and copper oxide nanoparticles were fabricated within 30 min by a simple and rapid method involving the reduction of a copper(II)-containing MOF with sodium ...

Aims: The aim of this study was to evaluate the antifungal effect adding nanoparticles with different concentrations into irreversible hydrocolloid impression materials. Materials and Methods: This evaluated MgO ZrO2 by Minimum inhibitory concentration (MIC) minimum fungicidal (MFC) using Agar-Well diffusion method after incorporation material. Results: results showed that MIC MFC magnesium oxi...

Today, special attention is paid to the use of zirconium dioxide nanoparticle (nano-ZrO2), a neutral bioceramic metal, particularly for drug and gene delivery in medicine. However, there are some reports implying that use of nano-ZrO2 is associated with cytotoxic effects like inhibiting the cell proliferation, DNA damage and apoptosis. In the present study, we examined whether nano-ZrO2 alters ...

In the present study, an investigation into wear properties has been carried out to identify the influence of ZrO2 as the reinforcement material on the LM25 MMC composite. Aluminum LM25 is selected as the base material, and it is reinforced with varying proportions of 0, 3, 6, 9, 12 and 15% of zirconia (ZrO2) manufactured by stir casting. Six tensile test and wear test samples were prepared acc...

Ni-Co/ZrO2 composite coatings were fabricated by electrochemical deposition from sulfamate solutions containing zirconia nanoparticles. The main purpose of this research was to evaluate the effect mechanical stirring and ultrasonic agitation in plating on structure properties coatings. morphology, microstructure, microhardness, anti-corrosion wear resistance composites investigated via scanning...

Solution combustion was employed to create a series of ZrO2:Dy3+ (1-11 mol percent) nanoparticles (NPs) using oxalyl dihydrazide (ODH) as the fuel. NPs were subjected calcination at about 700°C. comprised 1 11 mol% Dy3+ characterized by employing X-ray diffraction (XRD), transmission electron microscopic (TEM), UV-visible, and photoelectron spectroscopic (XPS) techniques. The crystallite diamet...

Here, we present oxygen-deficient black ZrO2-x as a new material for sunlight absorption with a low band gap around ~1.5 eV, via a controlled magnesiothermic reduction in 5% H2/Ar from white ZrO2, a wide bandgap(~5 eV) semiconductor, usually not considered for solar light absorption. It shows for the first time a dramatic increase in solar light absorbance and significant activity for solar lig...

First principles( or ab initio) density-functional-theory (DFT) with projected augmented wave (PAW) method simulations were performed to calculate the electronic structures and optical properties of 25% nickel (Ni) doped cubic ZrO2 crystals. We implemented two ab initio DFT application methods to the ZrO2 ceramic elastic constant, structure stability, and optical property calculation. The Cerpl...