Epitaxial oxide thin films for oxygen electrocatalysis: A tutorial review

Prajwal Adiga, Kelsey A. Stoerzinger

Research output: Contribution to journalReview articlepeer-review

11 Scopus citations


Epitaxial thin films can offer unprecedented definition of an electrocatalyst surface, defining the crystallographic orientation, interaction with a current collector, and providing an atomically flat surface for quantitative spectroscopy yielding mechanistic insights. This review introduces experts in thin films to the important parameters of electrochemical setups, techniques, and methods for quantifying electrocatalytic activity and comparing it across the literature. Examples are drawn from the literature measuring oxygen electrocatalysis on epitaxial oxide thin films. We share best practices in the robust measurement of intrinsic activity of thin films, including methods of electrical contact and assessment of charge transport in situ. We conclude by highlighting recent insights from epitaxial films in understanding oxygen electrocatalysis.

Original languageEnglish (US)
Article number010801
JournalJournal of Vacuum Science and Technology A: Vacuum, Surfaces and Films
Issue number1
StatePublished - Jan 1 2022
Externally publishedYes

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