科研干货 | 同步辐射X射线吸收(XAS): 基本原理、数据分析及电化学 …
X射线吸收细结构光谱 (X-ray absorption fine structure, XAFS)是一种基于同步辐射光源的分析方法。 它测量的基本物理量为X射线质量吸收系数μ (E)。
Sn K-edge XANES and EXAFS spectra of SnO 2 : (a) XANES and (b ...
In the Sn K-edge EXAFS spectra (Fig. 4a), metallic Sn 0 and Sn 2+/4+ were characterized by employing Sn and SnO 2 as references respectively, where the peaks located at 1.42 Å and …
(a) XAS spectra at the Sn L3-edge of commercial SnO2
Sn-modification of TiO2 photocatalysts has been recently proposed as a suitable strategy to improve pollutant degradation as well as hydrogen production. In particular, visible light activity...
Structural modulation and direct measurement of …
Jun 22, 2020 · The structures of bimetallic PtM catalysts (M = Ga, Zn, In, Sn) have been studied by in situ X-ray diffraction and in situ X-ray absorption spectroscopy (XAS). High Sn content …
XAS study of Sn speciation in toothpaste - RSC Publishing
Here we probe the speciation of Sn in solutions of known composition and in commercial toothpaste using Sn K-edge X-ray absorption spectroscopy. We show that the oxidation state …
Ir-Sn pair-site triggers key oxygen radical intermediate for
Oct 18, 2023 · To further unravel the underlying dynamic catalytic mechanisms of Ir-Sn PSC, we combined operando XAS and x-ray emission spectroscopy (XES) techniques to examine the …
In situ X-ray absorption spectroscopy of Sn species adsorbed on ...
Jun 26, 2019 · In situ X-ray absorption spectroscopy (XAS) was applied to investigate the Sn adlayer on platinized (pl-) Pt electrode in deaerated 0.2 M HClO 4 solution containing 10 −3 M …
Operando X-ray Absorption Spectroscopy Study of SnO2 …
Dec 12, 2022 · The transmission electron microscopy/scanning transmission electron microscopy images and fitting results of the small-angle X-ray scattering profile confirm the increased size …
XAS study of Sn speciation in toothpaste - Northwestern Scholars
Here we probe the speciation of Sn in solutions of known composition and in commercial toothpaste using Sn K-edge X-ray absorption spectroscopy. We show that the oxidation state …
Sn 3d XPS spectra of samples synthesized under H2/N2, Ar or air.
Download scientific diagram | Sn 3d XPS spectra of samples synthesized under H2/N2, Ar or air. Peak deconvolution shown corresponding to Sn 0 (green), Sn IV (blue), and metallic Sn 3d3/2...