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化工学院成立40周年院庆系列讲座
发布者: 张永海 | 2024-06-29 | 319

 

2024629日上午9:30-11:00,中国西部科技创新港

九州大学李秦宜教授做题为High-resolution thermophysical measurements at the nanoscale”的报告。

Dr. Qin-Yi Li is a tenured Associate Professor in the Department of Aeronautics and Astronautics and a joint faculty member at the International Institute for Carbon-Neutral Energy Research (I2CNER) at Kyushu University. He received his B. Eng. and Dr. Eng. in 2011 and 2016, respectively, both with honors from Tsinghua University, and has been working at Kyushu University since graduation. He is an Associate Editor of Journal of Thermal Science and ES Materials & Manufacturing. He received the Academic Award of the Heat Transfer Society of Japan in 2021, Best Poster Award (1st Place) and Best Paper Award (2nd Place) of ASME MNHMT Conferences in 2019 and 2016, etc. His research interests include thermophysical properties of nanomaterials, nanoscale heat and mass transfer, nanofluidics, thermal management, and energy harvesting technologies.

 

报告主要围绕以下内容展开:A comprehensive understanding of nanoscale thermophysical phenomena, including heat transfer and fluid behaviors, is crucial for a wide range of applications, such as electronics cooling, energy conversion and storage, water desalination, and biomedical engineering. However, high-resolution thermophysical characterization has long been a significant challenge. This talk will showcase our recent efforts that aim to push the resolution limits in thermophysical characterization with MEMS sensors, in-situ electron microscopy, and Raman spectroscopy. In the first part, I will present thermal conductivity measurements of low-dimensional materials with a nanometer-scale resolution. We measured record-high thermoelectric performance in graphene nanoribbons, realized nanoscale thermal conductance mapping, and elucidated the effects of interfaces and internal structures on nanoscale heat conduction. In the second part, I will present multiphase fluid characterization down to the molecular level. We measured and manipulated slip flow in nanochannels and visualized nanoconfined multiphase fluid structures and the intermolecular force distribution in 3D.

相关研究方向的同学认真听取并做笔记,同学们和李教授展开了热烈的讨论和交流。同学们获益良多,报告结束后,李教授参观了实验室。