Speaker
Description
This study explores the application of advanced transmission electron microscopy (TEM) techniques in characterizing the microstructure of porous materials, with a specific focus on geomaterials, such as feldspar and hydrotalcite. High-resolution TEM (HRTEM) and scanning transmission electron microscopy (STEM) are employed to investigate the pore structure, surface morphology, and crystallographic features of geomaterials at the atomic scale and nanoscale. Based on the electron beam-sensitive nature of minerals, we develop a technique combining cryo-electron microscopy with low-dose imaging to characterize the layered structural features at the atomic scale. Furthermore, we utilize in-situ TEM techniques to perform real-time observation of the formation, expansion, and restoration processes of the pore structures. The results demonstrate that these advanced TEM methods provide critical insights into pore distribution, particle morphology, and structural defects, which are essential for understanding the material’s performance in catalysis, CO2 adsorption, and ion exchange. This study highlights the significance of advanced TEM as a powerful tool for the detailed structural analysis of porous media, offering valuable guidance for the design and optimization of functional materials.
| Country | China |
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