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Dr. Katrin F. Domke: Molecular insight into electrochemical interfaces with nearfield and nonlinear Raman spectroscopies (2018/05/16)

( 2018-05-11 )

题目

Molecular insight into electrochemical interfaces with nearfield and nonlinear Raman spectroscopies

报告人

Dr. Katrin F. Domke

MPI for Polymer Research, Germany

时间

2018年5月16日(星期三)下午4:00

地点

微尺度国家实验室9004会议室

报告摘要

Gathering molecular-level information about electrochemical interfaces is highly desirable to advance or understanding of - and to ultimately design and control - efficient electrochemical processes that underly a manifold of ‘green’ energy conversion applications, such as fuel cell or sensitised solar cell operation, electrosynthesis and electrocatalysis or physiological electron transfer. Despite the vast interest in solid/liquid surface chemistry, however, advanced in operando experimental (and theoretical) tools that provide quasi-atomistic insight into chemical processes at (electrified) solid/liquid interfaces with nanoscale spatial and real-time chemical resolution are still scarce.
In my talk, I will highlight our recent methodological advances with nearfield and nonlinear Raman spectroscopies that allow us to gain precious molecular-level information about, for example, adsorption geometry, chemical interaction and conversion with extreme spatial and temporal resolution. Specifically, I will elucidate how our spectroscopic approaches provide important mechanistic understanding on water transport in fuel cell membrane nanopores and on potential-dependent adsorption geometry and chemical conversion at metal-organic interfaces. As a result, we can suggest novel fabrication strategies for improved fuel-cell membranes and alternative design routes for metal-organic frameworks.


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