Combined DRIFTS-PDF measurements on Sr-based catalysts

The goal is to improve our understanding of the carbonation, hydration, and regeneration reactions within the strontium oxide - strontium carbonate (SrO-SrCO3) system. This knowledge is crucial for the development SrO-based materials for the direct air capture (DAC) of carbon dioxide (CO2). In situ X-ray powder diffraction (XRD) coupled with diffuse reflectance infrared Fourier transform spectroscopy will provide unique insights into the atomic and molecular transformations that occur during the hydration and carbonation of SrO at ambient temperature.

本研究旨在加深对氧化锶-碳酸锶（SrO-SrCO3）体系内碳酸化、水合及再生反应的理解。该认知对于开发用于二氧化碳（CO₂）直接空气捕集（DAC）的氧化锶基材料至关重要。通过联用原位X射线粉末衍射（XRD）与漫反射红外傅里叶变换光谱（diffuse reflectance infrared Fourier transform spectroscopy），可获取氧化锶在常温下水合与碳酸化过程中的原子与分子转变的独特洞察。