报告题目：Catalytic Micro-Tubular Ceramic Membranes for Automotive Emissions Control

时　　间：2023年5月26日（周五）上午10:00

地　　点：化学化工学院219会议室

报 告 人：吴振涛 副教授 英国阿斯顿大学（Aston University）

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报告人简介：Zhentao Wu is an Associate Professor in Chemical Engineering at Aston University. In the last 15 years, I have led the continuous development of a phase-inversion assisted process for preparing micro-tubular ceramic membranes with enhanced separation performance for energy and environment applications. I have been experienced with material design, processing, characterization, and application, as well as the underlying material science. My research has been published in 64 peer-reviewed journal papers, with nearly 3000 citations and a h-index of 32 (Google Scholar), in addition to five book chapters and four authorized WIPO patents. Since 2018, I have been awarded with nearly £700k of research funding as a Principal Investigator (KTP011654, IES\R3\170353, IEC\NSFC\201014) and PI@Aston (Horizon-2020-INNOMEM_862330).

报告简介：Ceramic monolith is a key component inside catalytic convertors. It enables a smooth flow of flue gases at a low pressure drop, which helps with good engine performance and reduces fuel consumptions and emissions. Meanwhile, the large number of parallel channels inside ceramic monoliths provide a high surface area where precious metal catalyst is coated and used for converting toxic gaseous pollutants (HCs, CO and NOx) into harmless species. For the existing ceramic monoliths, the increase of geometric surface area (GSA) relies on reducing the cell/channel width mainly, which unfortunately increase pressure drop at the same time (Fig.1). As a result, there is an upper-bound of GSA of ceramic monolith, and a higher amount of precious metal catalyst has to be used with the increasingly stringent emission regulations, such as the new Euro 7 expected to start from 2025, unavoidably increasing the car manufacturing costs. Alternatively, micro-tubular ceramic membranes with a unique pore structure are able to decouple such limitations between pressure drop and GSA of ceramic monolith, enabling a low pressure drop that cuts fuel consumption and emission, and high GSA that reduces precious metal catalyst and cost at the same time. In this presentation, I would like to introduce how the original idea of using the micro-tubular ceramic membranes for emission control application was formed, developed from lab research into early commercialization, and further advanced into new research with associated technology development, as well as what we would target to achieve in near future. Meanwhile, this research journey may also showcase how membrane innovations can be transformed into solutions of real-world problems and help to inspire new research collaborations with the attendees.