To improve the performances of p-Dye Sensitized Solar Cell (p-DSSC) for the future, the synthesis of modified p-type nickel oxide semiconductor, commonly used as photocathode in such devices, was initiated with Ni3O2(OH)4 as precursor. This specific nickel oxyhydroxide was first characterized by X-ray photo-electron spectroscopy and magnetic susceptibility measurements. Then its thermal decompo...

Two-dimensional materials are suitable for energy storage applications due to their chemical stability, high electrical conductivity and large specific surface area. In this work, tungsten disulfide (WS2) nanosheets were synthesized by exfoliation method combined with nickel oxide (NiO) nanoparticles be used as a working electrode storing energy. The WS2 alone shows capacitance of about 21.87 m...

Active and highly stable oxide-supported IrNiO(x) core-shell catalysts for electrochemical water splitting are presented. IrNi(x)@IrO(x) nanoparticles supported on high-surface-area mesoporous antimony-doped tin oxide (IrNiO(x)/Meso-ATO) were synthesized from bimetallic IrNi(x) precursor alloys (PA-IrNi(x) /Meso-ATO) using electrochemical Ni leaching and concomitant Ir oxidation. Special emphas...

The photocatalytic process over semiconducting oxide surfaces has attracted worldwide attention as a potentially efficient, environmentally friendly, and low-cost method for wastewater treatment. This study presents straightforward, inexpensive, rapid route the synthesis of nickel (NiO) its composites with zinc (NiO/ZnO) copper (NiO/CuO) nanoparticles through chemical precipitation using cappin...

The synthesis of NiO nanoparticles was done by sol-gel method. Nickel Acetate Tetrahydrate ((CH3COO)2 –Ni·4H2O) was dissolved in ethanol with constant stirring to obtain a clear and light greenish sol. Oxalic acid solution was used to obtain a thick green gel, then dried in an oven to get dried gel and was then grinded into fine powders and calcined for different time periods to obtain nanocrys...

With the mass production of engineered nanoparticles, risk assessment efforts are in need of platforms that offer predictive value to human health and environment, and also possess high throughput screening capacity. Scientists, when turning to a model-organism to help answer genetic questions that cannot be easily addressed in humans, often chose the zebrafish (Danio rerio). Zebrafish share th...

Pure and 5 mol% Eu doped nickel oxide (NiO) nanoparticles were synthesized by microwave-assisted hydrothermal method. X-ray diffraction Rietveld refinement analysis confirmed the phase purity of prepared nanoparticles. Scanning electron microscopy revealed that undoped are porous flake-like structures while samples aggregated. photoelectron spectroscopy disclosed doping increases hole concentra...

Abstract The Nickel oxide nanoparticles (NiO NPs) and oxide/Nanoclay nanocomposite (NiO/Nc NC) were synthesized by chemical reduction method used for the photodegradation of Orange II dyes in aqueous solution. samples characterized through SEM, EDX, FTIR TGA. SEM analysis presented that NiO NPs are spherical with irregular shapes sizes. size particles is range 100–400 nm. It was also observed d...

Achieving nanostructures with high surface area is one of the most challenging tasks as this metric usually plays a key role in technological applications, such energy storage, gas sensing or photocatalysis, fields which NiO gaining increasing attention recently. Furthermore, advent modern NiO-based devices can take advantage deeper knowledge doping process NiO, and fabrication p-n heterojuncti...