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Interfacial Electrochemistry in Liquids Probed with Photoemission Electron Microscopy

Published

Author(s)

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

Abstract

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
Created December 20, 2017, Updated November 10, 2018