2022年9月1日 · By utilizing in-situ DRIFTS and custom-built semi in-situ XPS, it was revealed that the supported Fe-oxide nanoparticles not only catalyze the conversion reaction of H 2 S to S 8, but also boost the formation of SO 4 2− on the surface of Fe-oxide/Al 2 O 3, where a spill-over process of SO 4 2− from the surface of Fe-oxide to Al 2 O 3 at ...

摘 要：采用xps研究镍基合金uns n06985(即g3)在高压h2s/co2环境腐蚀前后钝化膜的结构与组成。研究两种 环境条件对g3 钝化膜的影响，第一种环境为h2s分压3 mpa、co2分压2 mpa、实验温度为130 ℃；第二种环境

2000年9月8日 · Catalytic properties of silica-supported Fe-containing catalysts in H 2 S oxidation have been correlated with their surface composition characterized by XPS.

2023年5月30日 · Hydrogen sulfide (H 2 S) detection remains a significant concern and the sensitivity, selectivity, and detection limit must be balanced at low temperatures. Herein, we utilized a facile...

The first steps of H 2 S adsorption have been studied on polycrystalline copper samples, which are more relevant to industrial copper samples than to single-crystal surfaces. The tools for characterization are ultrahigh vacuum spectroscopic methods, such as x-ray photoelectron and ion scattering spectroscopies.

X-ray photoelectron spectroscopy (XPS) analysis confirmed Co²⁺ and Co³⁺ sites in MOFs, which were preserved in NaCoxOy. The synthesized adsorbents were studied for room-temperature H2S ...

2016年5月27日 · Herein, we systematically examined the effects of various amounts of CuO nanoparticles on the structural, optical, electrical, and H 2 S gas-sensing properties of the fabricated open space...

用XPS研究硫化产物及其氧化产物中S和Fe的存在形态。 结果表明,硫化产物中S主要存在形式是FeS_2;氧化产物中S主要存在形式是硫酸盐,少部分FeS、单质硫及FeSx。 硫化产物和氧化产物中Fe的主要存在形式都是Fe_2O_3和FeS_2。 Iron sulfide, a chemical of high pyrophorisity, may be produced through reaction of ferric oxide with hydrogen sulfide, which can be encountered during the crude oil processing.

用xps研究硫化产物及其氧化产物中s和fe的存在形态。 结果表明,硫化产物中S主要存在形式是FeS 2 ;氧化产物中S主要存在形式是硫酸盐,少部分FeS、单质硫及FeS x 。

1993年1月22日 · Upon different thermal treatments and depending on the substrate orientation, the species 0, N, NO, (NO2)2, NH,, H,O, OH, H25, SH and S have been identified. In this paper, representative spectra and spectral data in the XPS and UPS region, together with the experimental conditions for their observation are compiled.