To study and fabricate Fe2O3 materials based on the experimental methods [40,41], there are the following methods: X-ray diffraction (XRD), Extended X-ray Absorption Fine Structure (EXAFS)...

2020年5月21日 · EXAFS data analysis, respectively. In this paper, we reported the structure characteristic of Fe 2 O 3 which was synthesized from a local iron stone mineral. The characterization includes XRD for phase identification and lattice parameter determination and XANES and EXAFS to analyze the electronic and local structure. In addition, we

2015年12月5日 · Furthermore, an extended X-ray absorption fine structure (EXAFS) technique was applied to characterize the difference of local structural environment of the adsorbed Pb(II) on the surface of α- and γ-Fe 2 O 3.

2021年5月20日 · Here we load platinum onto α-Fe 2 O 3 to construct a highly active and stable catalyst with dispersed Pt–Fe pair sites. We propose that the Pt–Fe pair sites have partially occupied orbitals...

1999年11月1日 · To investigate the role of surfactants, the x-ray absorption spectra were measured for the solution-form samples and the atomic local structure around Fe atoms was investigated through extended x-ray absorption structure (EXAFS) analysis.

2020年8月14日 · The chemical and magnetic states of Fe/Fe 2 O 3 thin films prepared by e-beam evaporation were investigated by using element-specific techniques, X-ray absorption spectroscopy (XAS) and X-ray magnetic circular dichroism (XMCD).

其中，Fe2O3具有价格低廉、毒性低、理论容量高（1005 mAh g-1）、生态友好等特点。 然而，氧化铁基负极材料的主要问题之一是锂化和脱锂时体积膨胀大，导致循环性能差。 解决上述问题的最佳策略是设计多孔和中空纳米结构的Fe2O3基负极材料。 但 纳米氧化铁 负极经常发生异常容量波动，容量最初逐渐下降，然后在循环过程中增加，这种现象被称为“ 负衰减 ”。 然而，负衰减的详细机制仍不清楚。 【工作简介】 近日, 韩国成均馆大学的Ji Man Kim和Won-Sub Yoon 等 …

2018年5月1日 · Fe K-edge XANES (X-ray Absorption Near Edge Structure) and EXAFS (Extended X-ray Absorption Fine Structure) spectra have been used to investigate the local structures of hematite (Fe 2 O 3) powders which were synthesized from local iron stone.

2023年7月15日 · We have characterized the mechanically alloyed (Fe 2 O 3) 1-x (Al 2 O 3) x solid solution with corundum-type structure by means of TEM, EXAFS, and Mössbauer spectroscopy emphasizing the homogeneity of cation distribution and …

2023年10月1日 · Hence, EXAFS can provide more accurate differences in the structure before and after the catalytic reaction (Zhao et al., 2015). In this study, we synthesized Mn,Cu co-doped Fe 2 O 3 (hereafter denoted as Mn,Cu-Fe 2 O 3 ), calcined at 400 °C for toluene oxidation in a continuous fixed-bed reactor.