Department of Chemistry and NanoLund, Lund University

报告摘要：

In this talk I will describe the use of environmental transmission electron microscopy (ETEM) for visualising oxidation reactions at high spatial and temporal resolution. The focus will be on protective TiAlN coatings to provide important insight into where oxidation initiates and how it proceeds to determine the performance of the coating.[1] These studies use samples extracted from real tools via focused ion beam milling, ensuring that the microstructure is relevant for the materials’ industrial application. With additional examples from catalysis, I will also detail how to avoid beam induced alterations during ETEM experiments[2-4] and describe strategies for spectroscopies to extract compositional[5] and bonding[2] information from limited electron doses.

[1] O. A. Makgae et al., Appl. Surf. Sci. 618 (2023) 156625

[2] M. Ek et al., Nanoscale 13 (2021) 7266

[3] M. Ek et al., Nanoscale 15 (2023) 9503

[4] D. Wahlqvist et al., Carbon 218 (2024) 118686

[5] D. Wahlqvist & M. Ek, Microsc. Microanal. (2025) ozae106.

报告人简介：

Martin Ek Rosén received his PhD from Lund University in 2014 for his work on transmission electron microscopy (TEM) methods and characterization of semiconductor nanowires. He spent four years as a postdoctoral research fellow, first in industry at Topsoe A/S (Denmark) and subsequently at the Georgia Institute of Technology, before returning to Lund as a Senior Lecturer in 2018. His research focuses on the application and development of environmental TEM for industrially relevant materials for catalysis, ceramic coatings and combustion processes.

会议室：M楼253会议室

邀请人：白雪冬  研究员（8032）

联系人：王立芬 副研究员（9963）