A highly reactive precursor in the iron sulfide system
2018年8月7日 · Here we report the synthesis and structure of a nanoparticulate phase (FeS nano) that is a necessary solid-phase precursor to the conventionally assumed initial precipitate in the iron sulfide...
Figure 4. XPS spectra of the FeS surface at pH 8, 14 days. (A) Fe …
At pH 8, reaction of FeS with CT led to formation of abundant spherical particles with diameters between 50-400 nm on the FeS surface and in solution; far fewer such particles were observed at...
High resolution XPS spectra of Fe 2p (a) and O 1s (b) in
The XPS and its deconvolution confirmed the presence of nZVI and S-nZVI in the Fe-LIG and SFe-LIG surfaces, which can generate in situ hydroxyl radical (•OH) via iron activation of ...
XPS of (a) Fe 2p and (b) S 2p of FeS 2 thin films sulfurized at ...
XPS of FeS 2 films showed that the Fe 2p spectrum of pyrite has two major peaks at 707 eV (assigned as Fe 2p3/2) and 720 eV (assigned as Fe 2p1/2), which illustrates the Fe 2+ bulk peak (as...
Synergistic Coupling of Sulfide Electrolyte and Integrated 3D FeS
2024年4月24日 · X-ray photoelectron spectroscopy (XPS) was conducted to comprehend the chemical bonding states of FeS 2 nanosheets. As shown in Figure 2h , the full XPS spectrum exhibits Fe and S signals. In the high-resolution Fe 2p spectrum (Figure 2i ), two peaks located at 707.5 and 720.3 eV can be assigned to the 2p 3/2 and 2p 1/2 states of Fe 2 ...
Enhanced Sulfur Transformation by Multifunctional FeS
2019年2月10日 · Here, a continuous ball-milling route is devised for synthesizing multifunctional FeS 2 /FeS/S composites for use as high tap density electrodes. These composites demonstrate a maximum reversible capacity of 1044.7 mAh g −1 and a peak volumetric capacity of 2131.1 Ah L −1 after 30 cycles.
铁 | Thermo Fisher Scientific - CN
XPS 谱图解读. Fe2p 具有明显的自旋轨道分裂峰（Δ 金属 =13.1eV）。 金属的 Fe2p 峰形不对称。 金属的高分辨率 Fe2p 3/2 谱显示了多重分裂。 在拟合典型的混合氧化物/金属谱时，可以不对较弱的分裂峰进行拟合（与主峰的位移为 0.9eV）。
Hydrothermal synthesis of FeS - ScienceDirect
2020年10月1日 · In this study, we demonstrated that hydrothermal synthesized FeS 2 was highly efficient to catalyze the H 2 O 2 decomposition for diclofenac sodium (DCF) degradation in a wide range of initial pH (3–9) by heterogeneous electro-Fenton (EF) process, and this “Pyrite-EF” showed a better performance for the mineralization of DCF in comparison with t...
Analysis of XPS spectra of Fe2+ and Fe3+ ions in oxide materials
2008年2月15日 · The XPS spectra of Fe 3p for Fe 3 O 4, and Fe 0.94 O are analysed using the Fe 3+ and Fe 2+ peak parameters obtained from Fe 2 O 3 and 2FeO·SiO 2. The results of the analyses show that the Fe 2+ /Fe 3+ atomic ratio in stoichiometric Fe 3 O 4 is accurately predicted within experimental uncertainty.
Surface XPS core-level shifts of FeS2 - ScienceDirect
2003年5月15日 · The XPS S 2p core-level spectra of pyrite FeS 2 have been measured to study the surface core-level shifts (SCLSs). In addition to the previously found features on the low binding energy (BE) side of the line, evidence for a new structure on the high BE side is given.