Interfacial Electrochemistry in Liquids Probed with Photoemission Electron Microscopy

Published: December 20, 2017


Slavomir Nemsak, Evgheni Strelcov, Tomas Duchon, Hongxuan Guo, Johanna Hackl, Alexander Yulaev, Ivan Vlassiouk, David Mueller, Andrei A. Kolmakov


Studies of the electrified solid-liquid interfaces are crucial for understanding of the biological and electrochemical systems. Until recently, the use of photoemission electron microscopy (PEEM) for such purposes has been hampered by the in-compatibility of the liquid samples with ultra-high vacuum environment of the electron optics and detector. Here we demonstrate that the use of ultra-thin electron transparent graphene membranes, which can sustain large pressure differentials and act as a working electrode, makes it possible to probe electrochemical reactions in operando in liquid environments with PEEM
Citation: Journal of American Chemical Society
Volume: 139
Issue: 50
Pub Type: Journals
Created December 20, 2017, Updated December 29, 2017