HYBRID: 2D materials under an X-ray microscope: What can we learn about MXenes?

This lecture will be held in presence at Magnus-Haus and can be followed online at the same time. Use the links above to register your attendance in person on site or to receive access data for online attendance. No admission after the start of the event. Please do not participate if you have symptoms of a respiratory infection (cold symptoms).

Topic: Finding efficient ways to store and deliver electrical energy is urgently needed for the large-scale development of renewable energy sources. The use of pseudocapacitive materials, such as 2D transition metal carbides and nitrides, so-called MXenes, is an extremely promising solution to achieve electrochemical energy storage with high power and energy densities. Nevertheless, local electrochemical processes occurring at the MXene-electrolyte interface are currently largely unexplored. In this presentation, I will show how synchrotron-based scanning X-ray microscopy can allow chemical imaging of electrochemical processes on individual MXene flakes.

CV: Tristan Petit received a PhD in Physics from ENS Cachan, France in 2013 working on the surface chemistry of nanodiamonds at the CEA Saclay in France. Before that, he followed a double master degree program from ISAE-Supaéro, France and ETH Zürich, Switzerland and graduated in 2010. He arrived in Berlin in 2013 with a Humboldt Postdoctoral fellowship at HZB and further received a Freigeist Fellowship from the Volkswagen Foundation in 2015 and an ERC Starting Grant in 2020. His research focuses on in situ/operando spectroscopy of carbon nanomaterials and MXenes for energy conversion and storage applications.

Following the lecture, there will be a get-together where participants can exchange ideas with each other over pizza and drinks in the Remise and the garden of the Magnus-Haus.

The event is sponsored by the Wilhelm and Else Heraeus Foundation.