The feedstocks used were fully characterized using X-ray diffraction (XRD), thermogravimetric analysis (TGA), scanning electron microscopy coupled with energy dispersive spectroscopy (SEM-EDS)...

2015年1月1日 · The composition and structural analysis by FESEM, XRD UV-Visible photo spectroscopy confirmed the stable iron NPs synthesis. The average particle size is 30 nm for synthesized iron NPs in acetone and 27 nm for iron and iron oxide NPs synthesized in water with cubic crystal structure.

2015年12月5日 · The optimized experimental parameters (supporting electrolytes, pH value, deposition potential, deposition time, and the volume of modifiers); The XRD pattern of α-Fe 2 O 3 and γ-Fe 2 O 3 microspheres (Figure S1); Cyclic voltammograms, electrochemical impedance spectra, and scan rate study at α-Fe 2 O 3 and γ-Fe 2 O 3 modified GCE (Figures ...

The XRD pattern revealed the crystalline cubic spinel structure of γ-Fe2O3. TEM micrographs showed the spherically shaped IONPs had an average size of 7.68 nm.

2006年7月29日 · We have been interested in how the iron nanoparticles can gain stability in air without significantly sacrificing reactivity. The freshly synthesized iron nanoparticles ignited spontaneously upon exposure to air. However, when exposed slowly to air, an ∼5 nm coating of iron oxide was formed on the surface of particles.

2024年1月4日 · Achieving rapid and highly selective chemical reductions using Fe 0 nanomaterials for water treatment remains challenging. Here lattice Ni and S were impregnated into crystalline Fe 0 with...

2021年6月5日 · Carbon-coated nanoscale zero-valent iron (Fe@C) is a robust active material in wastewater treatment. Small particle size and high content of zero valent iron nanoparticles (Fe° NPs) in Fe@C composites ensure their desired activity in Fenton-like reaction.

XRD patterns of α-Fe2O3, α-FeOOH and Fe3O4. A transformation process of ozone on different iron oxides suspensions, including α-Fe2O3, α-FeOOH, Fe3O4, was carried out using FTIR of adsorbed...

2008年2月15日 · X-ray powder diffraction (XRD) studies were undertaken to verify the phases present for all the samples. The XRD study was carried out using Bruker D8 Advance (Bruker AXS, Germany) with a graphite monochromator using Cu Kα radiation.

In this Article, we describe how lattice S and Ni were incorporated into the Fe0 body-centred cubic (bcc) structure on the basis of Lewis acid–base theory using a straightforward one-step...