报告题目 | Bridging the pressure gap in Heterogeneous Catalysis: Synergies arising from Experimental and Theoretical Kinetics |
报告人 | Prof. Alec Wodtke |
报告人单位 | Max Planck Institute for Multidisciplinary Sciences & University of Göttingen |
报告时间 | 2024年11月27日（星期三）15：00 |
报告地点 | 环资楼一楼报告厅 |
主办单位 | 精准智能化学重点实验室 |
报告摘要 | Velocity Resolved Kinetics (VRK) is a new method for obtaining highly accurate kinetics data for surface reactions under high-temperature conditions and with controlled reactant coverages. VRK is sufficiently accurate that meaningful comparisons between experimentally observed and theoretically predicted reaction rates become possible for the first time. This allows ab initio theory to serve as a kind of microscope, providing atomically resolved information about reaction mechanisms that can then be tested against experiment. We have recently applied these methods to reveal the reaction mechanisms of: ammonia oxidation, hydrogen oxidation, and formic acid decomposition on Palladium catalysts. In each case, we identify all reaction intermediates and the site-specific rate limiting steps involved in the kinetics. In catalytic hydrogen oxidation, we are able to show that an active configuration only present under reacting conditions is formed due to the cooperative behavior of several O-atoms interacting with one another at steps. We speculate that such active configurations formed by cooperative adsorbate binding play an important role in many real-world catalytic processes. |
报告人简介 | Prof. Dr. Alec Michael Wodtke, PhD at University of California Berkeley, USA (1985), Post-doctoral researcher at Max Planck Institute for Fluid Dynamics, Göttingen, Germany, Professor at University of California, Santa Barbara (1988-2010), Full Professor (since 1996), Director and Scientific Member at the MPI for Biophysical Chemistry and Professor for Physical Chemistry, University of Göttingen (since 2010). Numerous prizes and awards, among them the Presidential Young Investigator Award of the National Science Foundation, the Humboldt Research Award (1998), an Alexander von Humboldt Professorship (2010), an ERC Advance Award-Grant (2017), the Gerhard-Ertl-Lekture Award (2022), a Somorjai Visiting Miller Research Professorship at Berkeley (2023) and the Moore Distinguished Scholar at Caltech (2025). |
