Wave length dispersive X-ray spectrometer

催化科学依赖于在原子水平上对催化体系的精确表征。x射线吸收和发射光谱学可以得到结构信息，如给定原子周围的原子类型、数量和几何排列，以及电子结构信息，如氧化态。该方法不依赖于样品的结晶状态（就像x射线衍射技术的情况一样），而是对非结晶样品有用，可以应用于非晶固体和团簇或非常小粒度的纳米材料，这对于许多科学问题是必不可少的。此外，x射线光谱学适用于反应条件下催化体系的原位和操作中研究，对机理研究和老化过程的阐明具有重要意义。这类实验通常在同步辐射的大型研究设施中进行，但在这样的束流线上，能力受到很大限制，应用和进入的时间尺度也很长。内部的x射线光谱仪将通过进行初步测量和详细的实验计划，极大地提高效率和访问如此大规模的设施，并且它还将使许多项目能够以常规方式使用x射线光谱学。

Catalysis science relies on the exact characterization of catalytic systems on the atomic level. X-ray absorption and emission spectroscopy yields structural information such as type, number and geometric arrangement of atoms around a given one and as well information about electronic structure such as the oxidation state. The method is not depending on the crystalline state of the sample (as it is the case for X-ray diffraction techniques), rather it is useful for non-crystalline, samples and can be applied to amorphous solids and clusters or nano materials of very small particle size, which is essential for many scientific problems. In addition, X-ray spectroscopy is applicable for in-situ and in-operando studies of catalytic systems under reaction conditions, which is of importance for mechanistic studies and the elucidation of aging processes. Such kind of experiments are typically run at large scale research facilities with synchrotron radiation However, capacities are quite restricted at such beam lines and time scales of application and admission are long. An in-house X-ray spectrometer would greatly enhance the efficiency and access to such large scale facilities by doing preliminary measurements and detailed planning of experimental sessions, and as well it would enable many projects for using X-ray spectroscopy in a routine fashion.