Related Experiment Video
Updated: Nov 8, 2025

Tuning Oxide Properties by Oxygen Vacancy Control During Growth and Annealing
Published on: June 9, 2023
Surface stability of perovskite oxides under OER operating conditions: a first principles approach
Abhinav S Raman1, Roshan Patel1, Aleksandra Vojvodic1
1Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, PA 19104, USA. alevoj@seas.upenn.edu.
Abstract:
The activity-stability conundrum has long been the Achilles' heel in the design of catalysts, in particular, for electrochemical reactions such as water splitting. Here, we use ab initio thermodynamics to delineate the surface stoichiometry of a group of perovskite oxides with different activities towards the oxygen evolution reaction (OER), in order to get a measure of their stability under OER operating conditions. In particular, we compare the surface stability of SrIrO3, SrRuO3 and SrTiO3, establishing atomistic insights into the stability and dissolution of these oxide surfaces.
Related Concept Videos
Stability of Equilibrium Configuration
A stable equilibrium occurs when a system tends to return to its original position when given a small displacement, and the potential energy is at its minimum. An example of a stable equilibrium is when a cantilever beam is fixed at one end and a weight is attached to the other end. If the weight...
Redox Equilibria: Overview
Oxidation of Alkenes: Syn Dihydroxylation with Potassium Permanganate
Oxidation and Reduction of Organic Molecules
The removal of an electron from a molecule, results in a...
Oscillations about an Equilibrium Position

