2018年1月5日 · The Sb K-edge XAS measurements of antimony in alkaline (pH = 10.9 to 12) sulfide solutions gave average first shell coordination environments for strongly alkaline solutions that were consistent the speciation model derived from solubility experiments (i.e., Sb 2 S 4 2 − and Sb(OH) 3 (aq)). XAS data enabled the elimination of a speciation model involving only Sb-S monomers at strongly ...

2019年9月1日 · In the case of pure Sb, for instance, a study by operando Sb K-edge XAS assisted by a chemometric approach, 121 Sb Mössbauer spectroscopy and DFT calculations confirmed that Sb reacts with Na to form disordered Na 3 Sb via the formation of amorphous Sb as an intermediate and that, upon charge, Na 3 Sb is gradually desodiated to amorphous Sb [48].

2018年3月1日 · They found through Sb K-edge XAS analysis that both Sb(V) and Sb(III) formed amorphous or nano-particlulate SbS 3-like solids. Yet little is known about the interaction of Sb(III) with mackinawite and amorphous FeS minerals under wider pH ranges. To the best of our knowledge, no previous study has investigated the reaction mechanisms of Sb(III ...

XAS（synchrotron X-ray absorption spectroscopy）以X射线光子能量作为变量，测定材料的X射线吸收系数。 每个吸收边与材料中存在的特定原子有关，更具体地说，与将特定原子核轨道电子激发到自由或未占据的连续谱水平（轨道的电离）的量子力学转变有关。

2021年9月7日 · Sb 2 O 6 2 − covalent ... XAS is a powerful tool to probe both chemical features of the constituting elements, such as valence and coordination environment around the target atoms, ...

2018年1月1日 · 摘要 进行了锑在溶液中的辉锑矿溶解度实验和环境温度 X 射线吸收光谱 (XAS) 测量，以确定硫化物溶液中 Sb(III) 在硫浓度从 0.001 到 0.1 mol kg− 1 S2 −total 的水相形态在 3.5 到 12 的 pH 范围内。在 30 °C 时，辉锑矿溶解度曲线由五种物质组成：Sb2S42 -、HSb2S4-、H2Sb2S52 -、H3SbS2O 和 Sb(OH)3(aq)。

Download scientific diagram | a) Sb K edge XAS spectra of Sb, Sb2O3, Sb2O5, and Sb002‐LNMO. The inset shows the details of the normalized absorbance from 0.6 to 0.8; b) Sb 3d3/2 XPS spectra of ...

The XAS Data Library is designed to hold X-ray Absorption Spectra (EXAFS and XANES) using an SQLite database, with array data encoded using JSON. The principle goal for the library is as a proposed standard for storing and exchanging XAS data, with implementation here intended as initial reference and request for comments.

XAS analysis was conducted to determine the oxidation state of Sb in the fibers, Fig. 4. Sb was added into the synthesis solution as a trivalent SbCl 3 , but Sb(III) can be oxidized to Sb(V ...

In the case of pure Sb, for instance, a study by operando Sb K-edge XAS assisted by a chemometric approach, 121 Sb M€ ossbauer spectroscopy and DFT calculations confirmed that Sb reacts with Na ...