In this perspective, the HERFD-XANES (high energy resolution fluorescence detected X-ray absorption near edge structure) and Kβ2,5- or V2C-XES (valence-to-core X-ray emission spectroscopy) methods are discussed as new and powerful tools for chemical research with hard X-rays. This includes a brief survey of

In this work, we present experimental L 3 -edge HERFD-XANES and 2p3d RIXS on the series of LnTp 3 complexes (Ln = La, Ce, Pr, Nd, Sm, Eu, Tb, Dy, Ho, Er, Tm, Yb, and Lu) and analyze the experimental results with theoretical calculations based on the density functional theory (DFT) and the atomic multiplet theory for XANES and RIXS, respectively.

2023年10月18日 · With the advances of high photon flux at new-generation synchrotron radiation facilities, advanced X-ray spectroscopies with high-energy resolution, such as high-energy-resolution...

2018年11月22日 · 本研究突破传统x射线分析技术的桎梏，开发新型具有小入射角的原位kβ1,3高能分辨荧光检测x射线吸收光谱（herfd-xas）技术； 催化剂的精确合成、实验结果的充分全面、实验结果与理论计算的相互支持以及论述的严谨；

2023年11月4日 · 本文从光谱学（基本原理）和仪器（检测模式）的角度详细介绍了高能量分辨荧光检测X射线吸收谱（HERFD-XAS）、能量过滤EXAFS、非共振x射线发射光谱（XES）、共振非弹性X射线散射光谱 (RIXS) 以及高时间分辨的X射线光谱等技术。 首次揭示了这些先进X射线光谱技术相对于传统XAS技术在电催化研究中的独特优势、互补性以及在界面研究中能解决的关键问题等，特别强调了他们在解析电化学界面动态构型上不可替代的重要性。 3）本文建立了在电催 …

为了准确地测量反应过程中铜纳米催化剂的化学价态，本文采用了原位高能量分辨率荧光检测模式（herfd）下的硬x射线近边吸收谱（xanes）去追踪7和18纳米催化剂的反应价态（图3a-d）。

2021年7月7日 · 近日，上海光源研究团队基于 bl14w1-xafs 线站，利用原位高能量分辨荧光检测 x 射线吸收谱学（ herfd-xanes ）方法，并与差谱（Δμ ）分析以及近边拟合相结合，精确地识别了 cu(ii)pc 模型催化剂在 co 2 rr 过程中活性位点由 cun 4 c 8 到 cu 团簇的转变，为多碳产物的“ c ...

High energy resolution fluorescence detection (HERFD) X-ray adsorption spectroscopy (XAS) is demonstrated as a new tool to identify the geometry of metal adsorption sites and the orbitals involved in bonding. The type of CO adsorption site on a nanoparticular Pt-Al2O3 catalyst is …

The high-energy-resolution fluorescence detection technique, HERFD, makes possible to overcome some of the main limitations of conventional XAS. This technique consists of measuring the X-ray absorption spectrum via monitoring the intensity of a fluorescence line corresponding to a specific excited state decay process using a narrow energy ...

2022年1月1日 · The operando HERFD-XANES analysis developed in this work is a novel and powerful technique to establish structure–performance correlations. Therefore, it is expected to be applied for the rational synthesis of effective catalysts and the design of reaction conditions.