Nano crystals of γ-Fe2O3 (maghemite) were synthesized by emulsion precipitation method using kerosene as oil phase, SPAN80 (sorbitane monooleate) as the surfactant and sodium hydroxide as the precipitating agent. The characterization of the samples by FTIR (Fourier transform infra-red) and XRD (X-ray diffraction) techniques confirmed the formation of γ-Fe2O3 (maghemite). Analysis by SEM (scanni...

High surface area ceria nanoparticles have been prepared using a citrate sol-gel precipitation method. Changes to the particle size have been made by doping ceria powders, and calcining at different temperatures. Xray methods were used to determine their lattice parameters. The particle sizes have been assessed using transmission electron microscopy (TEM) and the lattice parameter found to fall...

Methanol synthesis from carbon dioxide (CO2) may contribute to capture and utilization, energy fluctuation control the availability of CO2-neutral fuels. However, methanol is challenging due stringent thermodynamics. Several catalysts mainly based on carrier material Al2O3 have been investigated. Few results MgO as published. The focus this study MgO. caustic properties depend caustification/si...

Abstract The chloride binding capacity of cement paste with Mg-Al CLDH, obtained through calcining a commercial LDH, is investigated under different concentration, environmental temperature, and concrete pore solution alkalinity conditions. transformation mechanism CLDH to Mg-Al-Cl LDH mainly explored by means X-ray diffraction (XRD) , Fourier-transform infrared spectroscopy (FT-IR) Differentia...

In this study, a simple and environment-friendly method of preparing activated graphite felt (GF) for vanadium redox flow battery (VRFB) by depositing the precursor on GF surface calcining oxide was explored. The intermediate material, VO2, generated carbon oxidation during calcination. contrast to normal etching method, without pickling process. On GF, multiple pores increased roughness were n...