Transmission in situ and operando high temperature X-ray powder diffraction in variable gaseous environments.
Transmission in situ and operando high temperature X-ray powder diffraction in variable gaseous environments.
复制标题
可变气体环境中的原位透射和操作高温 X 射线粉末衍射。
DOI：
10.1063/1.5001695
复制
发表时间：
2018
期刊：
影响因子：
--
通讯作者：
A. Gurlo
中科院分区：
文献类型：
--
作者：
L. Schlicker;A. Doran;Peter Schneppmüller;Albert Gili;Mathias Czasny;S. Penner;A. Gurlo
这项工作描述了一种在可控气体环境下在高温下进行基于时间分辨同步加速器的原位和操作 X 射线粉末衍射测量的装置。相应的气体样品环境是通过气密毛细管套毛细管设计实现的，其中气流是通过位于填充有样品粉末的 0.7 mm 毛细管内部的开口 0.5 mm 毛细管实现的。热质量流量控制器提供适当的气体流量和计算机控制的动态气体混合功能。毛细管系统位于红外加热、比例积分微分控制毛细管炉的中心，允许温度高达 1000 °C。
This work describes a device for time-resolved synchrotron-based in situ and operando X-ray powder diffraction measurements at elevated temperatures under controllable gaseous environments. The respective gaseous sample environment is realized via a gas-tight capillary-in-capillary design, where the gas flow is achieved through an open-end 0.5 mm capillary located inside a 0.7 mm capillary filled with a sample powder. Thermal mass flow controllers provide appropriate gas flows and computer-controlled on-the-fly gas mixing capabilities. The capillary system is centered inside an infrared heated, proportional integral differential-controlled capillary furnace allowing access to temperatures up to 1000 °C.