2024年7月24日下午，美国工程院院士、约翰斯·霍普金斯大学Michael Tsapatsis教授应邀作为betway西汉姆联 “戴安邦学术讲坛”嘉宾，为学院师生作了题为“Vapor and Liquid Phase Deposition and Etching of Thin Films of Metal-Organic Frameworks for Gas Separation Membranes and Lithography for Microelectronics”的精彩报告。本次报告由化学化工学院经理黎书华教授主持。黎书华经理介绍了Michael Tsapatsis教授的简历和在科学研究中卓越成就，并向Michael Tsapatsis教授颁发了betway西汉姆联“戴安邦学术讲坛”纪念铭牌。公司多个学科的教师及员工参加了报告会。

金属-有机框架（MOFs）因其可调的渗透性能而具有成为高效气体分离膜的潜力，尽管在高选择性MOF膜方面已经取得了很大进展，但可靠且可扩展大规模高质量薄膜制备仍然是一个挑战。Michael Tsapatsis教授首先介绍了基于气相处理的“配体诱导选择性渗透法”制备ZIF分离膜，通过原子层沉积法在多孔氧化铝载体上沉积氧化锌，经过2-甲基咪唑配体蒸汽处理，使其部分转变成为ZIF-8，结果发现丙烯通量和丙烯/丙烷选择性都大幅提高并且表现出稳定的性能。这种简便的全气相ZIF分离膜合成方法重复性佳，易于大规模生产，环境友好且成本低，具有广阔的应用前景。Michael Tsapatsis教授还介绍了基于电子束、X-射线和等离子体诱导修饰MOFs薄膜的最近研究工作进展，这些方法建立了一种新的材料处理范式，并在微电子器件制造中具有新的潜在应用。

报告结束后，Michael Tsapatsis教授同与会师生就配体诱导选择性渗透法的制备过程、对丙烯/丙烷等气体在ZIF膜上分离的原理以及非晶态MOFs薄膜在光刻中的应用等问题进行了热烈的交流与讨论。

Michael Tsapatsis院士简介：

Michael Tsapatsis is a Bloomberg Distinguished Professor at Johns Hopkins University (JHU). He received an Engineering Diploma (1988) from The University of Patras, Greece, and MS (1991) and Ph.D. (1994) degrees from the California Institute of Technology (Caltech) working with G.R. Gavalas. He was a post-doctoral fellow with M.E. Davis (1993/94). His research group’s accomplishments include development of hierarchical mesoporous zeolite catalysts, oriented molecular sieve films, molecular sieve/polymer nanocomposites for membrane applications, crystal structure determination of adsorbents that are now used in a commercial process. He has received the Alpha Chi Sigma Award for Chemical Engineering Research from AIChE, the Breck Award from the International Zeolite Association, and in 2015 was elected to the National Academy of Engineering.