
Reversible structural evolution of sodium-rich rhombohedral …
2020年2月20日 · Synchrotron in situ PXRD shows that the sodium-rich Na 2−x FeFe (CN) 6 undergoes highly reversible three-phase transitions between rhombohedral, cubic and tetragonal upon Na +...
opXRD: Open Experimental Powder X-ray Diffraction Database
2025年3月7日 · Powder X-ray diffraction (pXRD) experiments are a cornerstone for materials structure characterization. Despite their widespread application, analyzing pXRD diffractograms still presents a significant challenge to automation and a bottleneck in high-throughput discovery in self-driving labs.
粉末X射线衍射(PXRD)在药物晶型鉴定中的关键作用 - 知乎
粉末X射线衍射 (PXRD)作为一种非破坏性分析技术,因其高效、准确和灵敏的特点,广泛应用于药物晶型的鉴定和分析。 PXRD通过测量X射线与药物粉末样品之间的衍射模式,能够提供关于晶体结构的详细信息。 本篇文章将深入探讨PXRD在药物晶型鉴定中的关键作用,同时,我们将介绍PXRD的工作原理及其在药物晶型分析中的应用实例,并向大家推荐我们的表征检测服务内容(薇:jia009077)。 1.什么是药物晶型? 药物晶型是指药物分子在固态下的不同排列方式, …
Investigating the Dynamics of a Soft Crystalline Covalent Organic ...
2024年10月12日 · Indeed, though Chen and coworkers acquired NA-PXRD patterns while dosing CO 2, they did not exploit them to extract crystallochemical information. To the best of our knowledge, our work is the first report on the use of NA-PXRD to dose a gas or a vapor on a COF and extract molecular-level information therefrom.
Powder X-ray diffraction assisted evolutionary algorithm for crystal ...
2024年11月28日 · Herein, we propose a method based upon a multi-objective evolutionary search that uses both a structure's enthalpy and similarity to a reference PXRD pattern (constituted by a list of peak positions and their intensities) to facilitate structure solution of inorganic systems.
Expanded solid-solution behavior and charge-discharge …
2022年7月1日 · To gain a deeper insight into the structural evolution of the O3–NaCrO 2 cathode during charge and discharge, operando powder X-ray diffraction (PXRD) was performed during Na-ion extraction and insertion at a current rate of C/15 in an LE-cell.
Tutorial on Powder X-ray Diffraction for Characterizing Nanoscale ...
2019年7月23日 · Powder X-ray diffraction (XRD) is a common characterization technique for nanoscale materials. Analysis of a sample by powder XRD provides important information that is complementary to various microscopic and spectroscopic methods, such as phase identification, sample purity, crystallite size, and, in some cases, morphology.
【晶型定量】晶型定量选择什么方法?PXRD技术,还是拉曼光谱 …
PXRD准确度高,分辨能力强,可通过给出晶胞参数 (如原子间距离、双面夹角等)确定药物晶型与结构,可用于鉴别晶态与非晶态、混合物与化合物的定性分析。
The powder x-ray diffraction (PXRD) pattern at room temperature confirmed the crystal-linity of ICOF-101-Na with no observable dif-fraction peaks from the starting materials, hydroquinone and sodium borohydride (Fig. 1D).
xrd-app
该应用程序旨在通过图形化界面进行粉末X射线衍射(PXRD)数据的分析和处理。 借助Gradio界面的便利性,用户可以上传数据文件并执行多种分析操作,包括数据预处理、数据库查询以及结构精修。
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