Interfacial Electrochemistry in Liquids Probed with Photoemission Electron Microscopy

Slavomír Nemšák, Evgheni Strelcov, Tomáš Duchoň, Hongxuan Guo, Johanna Hackl, Alexander Yulaev, Ivan Vlassiouk, David N. Mueller, Claus M. Schneider, Andrei Kolmakov

Research output: Contribution to journalArticlepeer-review

31 Scopus citations

Abstract

Studies of the electrified solid-liquid interfaces are crucial for understanding biological and electrochemical systems. Until recently, use of photoemission electron microscopy (PEEM) for such purposes has been hampered by incompatibility of the liquid samples with ultrahigh vacuum environment of the electron optics and detector. Here we demonstrate that the use of ultrathin 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.

Original languageEnglish
Pages (from-to)18138-18141
Number of pages4
JournalJournal of the American Chemical Society
Volume139
Issue number50
DOIs
StatePublished - Dec 20 2017

Funding

E.S. acknowledges support under the Cooperative Research Agreement between the University of Maryland and the National Institute of Standards and Technology Center for Nanoscale Science and Technology, Award 70NANB14H209, through the University of Maryland.

FundersFunder number
Center for Nanoscale Science and Technology70NANB14H209
University of Maryland

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