香港城市大学尚进副教授:Advancing the Molecular Trapdoor Mechanism
发布时间: 2025-06-19 浏览次数: 10

报告题目:Advancing the Molecular Trapdoor Mechanism for Precision Adsorption and Selective Sieving

报告人:香港城市大学能源与环境学院尚进长聘副教授

报告时间:2025年6月24日(星期二)上午9:30

报告地点:逸夫工程馆105

邀 请 人:肖静 研究员

主办单位:化学与化工学院


报告摘要:Chemical separations are major energy consumers globally. Adsorption-based separation especially molecular-sieving separation presents a more sustainable alternative to conventional distillation. However, traditional molecular sieving via size exclusion becoming ineffective when separating gases with similar molecular dimensions. This lecture presents the molecular trapdoor mechanism, a novel approach based on selective interactions between gas molecules and pore-keeping groups, rather than size exclusion. Recent advances including trapdoor zeolites achieving size-inverse Xe/Kr separation and same-size CO₂/C₂H₂ sieving will be highlighted. These findings underscore the transformative potential of molecular trapdoor zeolites in addressing long-standing challenges in adsorption-based gas separations.

报告人简介:Jin Shang is a tenured Associate Professor at the City University of Hong Kong, specializing in adsorption-based gas separation technology, finding applications in carbon capture, carbon removal, the extraction of toxic gases etc. Prof. Shang discovered the molecular trapdoor mechanism, the fourth recognized method for adsorption-based separation showing the highest CO2 selectivity in natural gas purification. He has received the 2024 Carbon Capture Award for Excellent Research and the 2022 ISTP-Bogen Young Scientist Award. With over 130 papers published and an h-index of 52, Prof. Shang is among Stanford's top 2 % most highly cited scientists in 2022, 2023, and 2024.