Speaker
Elena Marelli
(Paul Scherrer Institut)
Description
Cobalt-based layered perovskites have emerged as promising electrocatalysts for the oxygen evolution reaction (OER), but fundamental questions regarding the design principles for highly active perovskite electrocatalysts are still open. A recent study demonstrated that oxygen vacancies play a critical role in the OER mechanism and on the perovskite electrochemical activity.
Double perovskite oxides, such as PrBaCo2O5+x (PBCO), are able to incorporate large amounts of oxygen vacancies with high oxygen mobility. We combine high-resolution neutron and X-ray diffraction, XAS, magnetic and electrochemical analysis to understand the correlation between catalyst activity and oxygen vacancy amount and distribution.
Authors
Elena Marelli
(Paul Scherrer Institut)
Dr
Emiliana Fabbri
(Paul Scherrer Institute)
Prof.
Thomas Schmidt
(Paul Scherrer Institut)
Dr
Marisa Medarde
(PSI)
