Observing the formation of TiO2 mesocrystals from NH4TiOF3 microparticles using in situ thermo-WAXS measurements

IF 1.8 4区化学 Q3 CHEMISTRY, MULTIDISCIPLINARY

Mendeleev Communications Pub Date : 2024-03-01 DOI:10.1016/j.mencom.2024.02.022

Alexey A. Sadovnikov , Olga V. Boytsova

引用次数: 0

Abstract

Real-time in situ X-ray analysis was used to shed light on the topotactic transformation of NH₄TiOF₃ into nanostructured TiO₂ mesocrystals. Specifically, for the system formed in the presence of the PEG-2000 templating polymer, XRD analysis showed that the overall transformation occurs through four separate transitions, consistent with previous reports. The applicability of synchrotron wide-angle X-ray scattering (WAXS) to real-time in situ analysis has enabled precise temperature mapping of these four transitions and the identification of stability boundaries for the first time.

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利用原位热-WAXS 测量观察 NH4TiOF3 微颗粒形成 TiO2 介晶

实时原位 X 射线分析用于揭示 NH4TiOF3 向纳米结构 TiO2 介晶的拓扑转化过程。具体来说，对于在 PEG-2000 模板聚合物存在下形成的体系，X 射线衍射分析表明，整体转变是通过四个独立的转变发生的，这与之前的报告一致。同步辐射广角 X 射线散射 (WAXS) 在实时原位分析中的应用，首次实现了这四种转变的精确温度映射，并确定了稳定性边界。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Mendeleev Communications 化学-化学综合

CiteScore

3.00

自引率

21.10%

发文量

226

审稿时长

4-8 weeks

期刊介绍： Mendeleev Communications is the journal of the Russian Academy of Sciences, launched jointly by the Academy of Sciences of the USSR and the Royal Society of Chemistry (United Kingdom) in 1991. Starting from 1st January 2007, Elsevier is the new publishing partner of Mendeleev Communications. Mendeleev Communications publishes short communications in chemistry. The journal primarily features papers from the Russian Federation and the other states of the former USSR. However, it also includes papers by authors from other parts of the world. Mendeleev Communications is not a translated journal, but instead is published directly in English. The International Editorial Board is composed of eminent scientists who provide advice on refereeing policy.