2020年7月14日 · Herein, we develop an operando seconds-resolved X-ray absorption spectroscopy to uncover the chemical state evolution of working catalysts. An oxide-derived Copper electrocatalyst is employed as a...

2020年8月11日 · Operando X-ray absorption spectroscopy, electron paramagnetic resonance and density-functional theory simulations are used to demonstrate that a [Cu (I)O 2] 3− site selectively adsorbs molecular O...

2016年8月15日 · To determine the number and distance of scattering atoms around Cu centre in the complexes, EXAFS analysis has been done using the paths obtained from Cu (II) oxide model and an axial Cu-O path from model of a square pyramidal complex.

2015年2月16日 · CuO nanoparticles (NPs) and Cu 2 O/CuO and CuO/TiO 2 nanocomposites (NCs) have been synthesized by using a modified co-precipitation method with three different schemes of synthesis. The crystal structures and morphologies of the samples have been investigated using synchrotron X-ray diffraction and …

Highly monodispersed CuO nanoparticles (NPs) were synthesized via continuous hydrothermal flow synthesis (CHFS) and then tested as catalysts for CO 2 hydrogenation.

2005年1月1日 · In this work we present a comparison between EXAFS and XRD results for both compounds. The comparison between local and lattice thermal expansions, measured by EXAFS and XRD, respectively, and the differences found between the two compounds, allow to gain original insight on the mechanism of negative thermal expansion in framework structures.

2022年9月1日 · 原位XAFS分析表明，在电化学工作条件下发生了从初始的Cu− N 4 到Cu− N 4 / Cu–nanoclusters（NC）和随后Cu− N 3 /Cu–NC的重构现象。有趣的是，当外加电场被去除时，Cu的原子分散状态可以恢复。

Download scientific diagram | Cu K-edge XANES spectra of Cu foil, Cu2O, and CuO standard sample and CuCl2, and Cu)II: (Glycine sample solution. from publication: Structural Study of Cu...

2009年11月1日 · 使用线性组合拟合 (LCF) 方法对两种氧化物（即分别为 Cu (I) 和 Cu (II) 氧化物）获得的归一化 μ (E) 数据进行线性组合，以拟合混合物的归一化 μ (E) 数据. 为统计拟合优度参数、R 因子和卡方获得的值表明拟合相当好。 该程序产生了混合物中氧化物的百分比，发现该百分比与用于制备混合物的实际百分比几乎相同。 另一种基于归一化差异吸收边缘光谱分析的方法也已用于定量确定混合物中两种铜物质的百分比。 然而，发现 LCF 方法比归一化差异吸收边缘分析 …

This dataset consists of X-ray absorption fine structure (XAFS) spectra at Cu K-edge of Copper(I) oxide measured at SPring-8 BL14B2, and is a part of XAFS database (MDR XAFS DB, https://doi.org/10.48505/nims.1447) as a collection of MDR