通过高通量连续水热合成法制备完整的纳米陶瓷相图。

High-throughput continuous hydrothermal synthesis of an entire nanoceramic phase diagram.

作者信息

Weng Xiaole, Cockcroft Jeremy K, Hyett Geoffrey, Vickers Martin, Boldrin Paul, Tang Chiu C, Thompson Stephen P, Parker Julia E, Knowles Jonathan C, Rehman Ihtesham, Parkin Ivan, Evans Julian R G, Darr Jawwad A

机构信息

Christopher Ingold Laboratories, Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, United Kingdom.

出版信息

J Comb Chem. 2009 Sep-Oct;11(5):829-34. doi: 10.1021/cc900041a.

DOI:10.1021/cc900041a

PMID:19594110

Abstract

A novel High-Throughput Continuous Hydrothermal (HiTCH) flow synthesis reactor was used to make directly and rapidly a 66-sample nanoparticle library (entire phase diagram) of nanocrystalline Ce(x)Zr(y)Y(z)O(2-delta) in less than 12 h. High resolution PXRD data were obtained for the entire heat-treated library (at 1000 degrees C/1 h) in less than a day using the new robotic beamline I11, located at Diamond Light Source (DLS). This allowed Rietveld-quality powder X-ray diffraction (PXRD) data collection of the entire 66-sample library in <1 day. Consequently, the authors rapidly mapped out phase behavior and sintering behaviors for the entire library. Out of the entire 66-sample heat-treated library, the PXRD data suggests that 43 possess the fluorite structure, of which 30 (out of 36) are ternary compositions. The speed, quantity and quality of data obtained by our new approach, offers an exciting new development which will allow structure-property relationships to be accessed for nanoceramics in much shorter time periods.

摘要

一种新型的高通量连续水热（HiTCH）流动合成反应器被用于在不到12小时的时间内直接快速制备一个包含66个样品的纳米晶Ce(x)Zr(y)Y(z)O(2-δ)纳米颗粒库（完整相图）。使用位于钻石光源（DLS）的新型机器人光束线I11，在不到一天的时间内获得了整个热处理库（在1000摄氏度/1小时）的高分辨率PXRD数据。这使得能够在不到1天的时间内收集整个66个样品库的Rietveld质量粉末X射线衍射（PXRD）数据。因此，作者迅速绘制出了整个库的相行为和烧结行为。在整个66个样品的热处理库中，PXRD数据表明有43个具有萤石结构，其中30个（36个中的）是三元成分。我们新方法获得的数据的速度、数量和质量提供了一个令人兴奋的新进展，这将使人们能够在更短的时间内研究纳米陶瓷的结构-性能关系。