Highly time-resolved transmission powder diffractometer with PDF and Raman option

• Subject Area: Chemical Solid State and Surface Research
• Term: Funded in 2024
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 549313731

We apply for a powder diffractometer in transmission geometry with a detector with high time resolution especially for the application in the in-situ and in-operando analysis of materials for energy conversion and storage. The modular combination with a laser for Raman measurements and the analysis of pair distribution functions will enable us to analyze the X-ray amorphous components at the same time as the crystalline phases, for example carbons used in battery electrodes as conductive additives or in fuel cell catalysts as supports. Thus, ideally, high-resolution data on crystalline and X-ray amorphous components in the sample will be obtained simultaneously. By analyzing the pair distribution functions, the users involved are tapping into new potential with a method in materials characterization, especially of materials without long-range order, that has not yet been intensively pursued. Due to its specifications, the X-ray diffractometer is of interest for a wide range of users in engineering, but also chemists and physicists as well as colleagues from the Bavarian Center for Battery Technology to investigate the synthesis, activation, conditioning, and degradation behavior of cutting-edge battery electrodes and new materials for fuel fuel cells and water electrolysis.

• DFG Programme: Major Research Instrumentation
• Major Instrumentation: Hochzeitauflösendes Transmissions-Pulverdiffraktometer mit PDF und Raman-Option
• Instrumentation Group: 4011 Pulverdiffraktometer
• Applicant Institution: Universität Bayreuth
• Leader: Professorin Dr.-Ing. Christina Roth