A 4D x-ray computer microtomography for high-temperature electrochemistry.
A 4D x-ray computer microtomography for high-temperature electrochemistry.
复制标题
用于高温电化学的4D X射线计算机显微层析成像。
DOI：
10.1126/sciadv.abm5678
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发表时间：
2022-02-11
期刊：
影响因子：
13.6
通讯作者：
Fang D
中科院分区：
文献类型：
--
作者：
Jiao H;Qu Z;Jiao S;Gao Y;Li S;Song WL;Chen H;Zhu H;Zhu R;Fang D
高温电化学在许多领域有着广泛的应用。然而，由于苛刻的反应条件和多物理场，从实验角度对该系统内部演化的实时观察和深入了解仍然有限。在这里，我们通过内部开发的高温电解设施应对了这一挑战。该设备允许原位X射线计算机显微断层扫描（μ-CT）进行无损和定量三维（3D）成像。在电解精炼系统中，μ-CT探测了电极的3D形态和成分的动态演变（4D）。随后，这个4D过程通过重建图像可视化地呈现。结果可以监控流程的效率，探索动态机制，甚至提供实时优化。该4D分析平台因其多尺度可视化和高效率的数据提取而将传统电化学与数字孪生技术进行了深入的结合。提出了一种基于X射线显微层析成像的高温电化学定量4D可视化技术。
High-temperature electrochemistry is widely used in many fields. However, real-time observations and an in-depth understanding of the inside evolution of this system from an experimental perspective remain limited because of harsh reaction conditions and multiphysics fields. Here, we tackled this challenge with a high-temperature electrolysis facility developed in-house. This facility permits in situ x-ray computer microtomography (μ-CT) for nondestructive and quantitative three-dimensional (3D) imaging. In an electrorefining system, the μ-CT probed the dynamic evolution of 3D morphology and components of electrodes (4D). Subsequently, this 4D process was visually presented via reconstructed images. The results monitor the efficiency of the process, explore the dynamic mechanisms, and even offer real-time optimization. This 4D analysis platform is notable for in-depth combinations of traditional electrochemistry with digital twin technologies owing to its multiscale visualization and high efficiency of data extraction. We propose a quantitative 4D visualization technique of the high-temperature electrochemistry based on X-ray microtomography.
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