4.3 Article

In Operando Self-Healing of Perovskite Electrocatalysts: A Case Study of SrCoO3 for the Oxygen Evolution Reaction

Journal

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/ppsc.201600280

Keywords

density functional theory; electrocatalysts; oxygen evolution reactions; perovskites; vacancies

Funding

  1. UNSW Australia [SPF01]
  2. NCMAS project [fr2]
  3. Energy and Resources Merit Allocation Scheme of the Pawsey Supercomputing Centre [pawsey0111]
  4. King Abdullah University of Science and Technology (KAUST)

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Perovskites are promising catalysts for oxygen evolution reactions (OER); among them, SrCoO3 is one of the best for these reactions. We study the O* intermediates and the role of surface oxygen vacancies of SrCoO3 during OER. A self-healing mechanism is proposed in which O* are incorporated into the surface to recover the redox capabilities of the material.

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