α-Fe2O3 films with a layered distribution of nano and submicron particles were synthesized Ti-doped successfully. Morphology, element phase composition, electrochemical properties one-layered, multilayered, investigated. Doped multilayered hematite have higher catalytic water oxidation efficiency than both undoped films.

Increasing oil consumption in Indonesia encourages an improvement of production using chemical flooding Enhanced Oil Recovery (EOR) technology. Chemical is injection method materials based on polymer and nanoparticles such as α-Fe2O3-xanthan gum nanocomposite into the reservoir. In this study, α-Fe2O3 were synthesised then blended to xanthan by sonochemical through ex-situ process. The X-ray di...

The effects of microwave plasma induction and reduction on the promotion of the carbothermal reduction of iron oxides (α-Fe2O3, γ-Fe2O3, and Fe3O4) are investigated using in situ emission spectroscopy measurements during 2.45 GHz microwave processing, and the plasma discharge (such as CN and N2) is measured during microwave E-field irradiation. It is shown that CN gas or excited CN molecules co...

The atomic structure and properties of nanoparticulate Fe2O3 are characterized starting from its smallest Fe2O3 building unit through (Fe2O3)n clusters to nanometer-sized Fe2O3 particles. This is achieved by combining global structure optimizations at the density functional theory level, molecular dynamics simulations by employing tailored, ab initio parameterized interatomic potential function...

This work reported the electrochemical and photoelectrochemical (PEC) properties of a new photoelectrode based on hematite Co-Fe2O3@NiO, photoactive semiconductor, was prepared using process involving combination co-precipitation microwave-assisted synthesis Fe2O3, Co-Fe2O3 respectively. The obtained products were characterized by X-Ray powder Diffraction (XRD), Scanning Electron Microscope (SE...

Fe-based nanoparticles were prepared by laser-driven pyrolysis. The assynthesised powder consists of α-Fe and Fe3O4/γ-Fe2O3 nanoparticles embedded in a pyrolytic carbon matrix. The crystallite size of 1.8 nm for α-Fe was calculated using the Scherrer formula. The as-synthesised nanopowder was superparamagnetic. The maximum of the zero-field cooling curve was observed at 32 K and the distributio...

FeO ⋅ Fe2O3 nH2O, Fe2.95Gd0.05O4 and Fe2.9Gd0.1O4 powders were obtained by chemical precipitation from aqueous solutions. The phase composition local environment of iron ions in gadolinium-doped oxide nanoparticles studied X-ray diffraction analysis nuclear gamma resonance (NGR) spectroscopy. Interpretation radiographs NGR spectra synthesised samples indicates the presence a superposition maghe...

This study presents an analysis of a set iron oxides nanoparticles (NPs) (γ-Fe2O3, α-FeOOH, δ-FeOOH, 5Fe2O3·9H2O, and Fe3O4) as potential candidates for ferroptosis therapy in terms phase state, magnetic characteristics, the release Fe2+/Fe3+ ROS mediators. Due to values saturation magnetization Fe3O4 (31.6 emu/g) γ-Fe2O3 (33.8 emu/g), well surface area these particles (130 123 m2/g), it is pos...

Hematite (α-Fe2O3) and magnetite (Fe3O4) nanowires with the diameter of about 100 nm and the length of tens of micrometers have been selectively synthesized by a microemulsion-based method in combination of the calcinations under different atmosphere. The effects of the precursors, annealing temperature, and atmosphere on the morphology and the structure of the products have been investigated. ...