XPS determination of Mn oxidation states in Mn (hydr)oxides
2016年3月15日 · In this contribution an empirical methodology using X-ray photoelectron spectroscopy (XPS) is developed to quantify the oxidation state of hydrous multivalent manganese oxides with an emphasis on birnessite, a layered structure that occurs commonly in soils but is also the oxidized endmember in biomimetic water-oxidation catalysts.
Manganese | Periodic Table | Thermo Fisher Scientific - US
Interpretation of XPS spectra. Mn2p peak has significantly split spin-orbit components (Δ metal =11.2eV). Mn2p peaks have asymmetric shape for metal. Mn oxide peaks are significantly shifted to higher binding energy than the metal. A well resolved …
Use of XPS to Identify the Oxidation State of Mn in Solid Surfaces …
2010年7月12日 · X-ray photoelectron spectroscopy (XPS) was used to identify Mn(II), Mn(III), and Mn(IV) in the surfaces of pure oxide standards and filtration media samples from drinking water treatment plants through the determination of the magnitude of the Mn 3s multiplet splitting and the position and shape of the Mn 3p photo-line. The Mn 3p region has ...
锰 | Thermo Fisher Scientific - CN
Mn2p 具有明显的自旋轨道分裂峰（Δ 金属 =11.2eV）。 金属的 Mn2p 峰形不对称。 相对于金属，Mn 氧化物峰明显移向更高的结合能。 金属的高分辨率 Mn2p 谱显示了多重分裂。 [1] 在拟合混合氧化物/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）。 Mn 氧化物的化学态分析。 Mn 氧化物的 Mn2p 峰具有多个多重分裂峰，类似于 铬 氧化物中的 Cr2p 区。 与 MnO 或 Mn 2 O 3 相比，MnO 2 的 Mn2p 3/2 峰要窄得多。 在 Mn2p 3/2 峰顶部也具有可识别的形 …
Interpretation of XPS Mn(2p) spectra of Mn oxyhydroxides and ...
1998年3月1日 · Calculated Mn (2p 3/2) X-ray photoelectron spectra (XPS) of Mn 2+, Mn 3+, and Mn 4+ free ions are strikingly similar to Mn (2p 3/2) spectra of Mn 2+ -, Mn 3+ -, and Mn 4+ -oxides and oxyhydroxides, indicating that these ions …
X-ray Photoelectron Spectroscopy (XPS) Reference Pages: Manganese
X-ray photoelectron spectroscopy (XPS or ESCA) curve fitting procedures, reference materials and useful notes are listed here to provide a starting point for the consistent interpretation of XPS spectra. These reference pages contain tips and techniques that are designed to help both the novice and advanced XPS user.
XPS determination of Mn oxidation states in Mn (hydr)oxides
In this contribution an empirical methodology using X-ray photoelectron spectroscopy (XPS) is developed to quantify the oxidation state of hydrous multivalent manganese oxides with an emphasis on birnessite, a layered structure that occurs commonly in soils but is also the oxidized endmember in biomimetic water-oxidation catalysts.
XPS 测定 Mn（氢）氧化物中的 Mn 氧化态,Applied Surface …
在这个贡献中，开发了一种使用 X 射线光电子能谱 (XPS) 的经验方法来量化含水多价锰氧化物的氧化态，重点是水钠锰矿，一种常见于土壤中的层状结构，但也是仿生水中的氧化端元-氧化催化剂。 近一价Mn (II)、Mn (III)和Mn (IV)氧化物的Mn2p3/2、Mn3p和Mn3s谱线与组分峰拟合；在获得最佳拟合后，组件的相对宽度、高度和结合能是固定的。 对未知的多价样品进行拟合，使得每个氧化态的结合能、强度和峰宽（由一组相关组分峰组成）可以变化。 峰宽受到限制以保持标准之间 …
XPS determination of Mn oxidation states in Mn (hydr)oxides
2016年3月15日 · X-ray photoelectron spectroscopy (XPS) was used to identify Mn (II), Mn (III), and Mn (IV) in the surfaces of pure oxide standards and filtration media samples from drinking water treatment plants…
XPS of the Mn 2p and O 1s spectral regions. For the Mn 2p …
MnO(100) yields a characteristic Mn 2p x‐ray photoelectron spectroscopy (XPS) satellite structure and appropriate O/Mn concentrations from O 1s/Mn 2...