Electrochemical catalyst structure and method of fabricating the same
AssigneeUniversity-Industry Foundation (Uif), Yonsei University
InventorsJoo Ho MOON, Dae Hee LEE, Jai Wan TAN
Life of this patent
Estimating the term…
Abstract
The present invention relates to an electrochemical catalyst structure and a method for producing the same. The electrochemical catalyst structure may include a catalyst layer including a perovskite based oxide as an electrochemical oxygen reduction catalyst; and a modifying layer being in contact with the catalyst layer and including a transition metal oxide capable of chemical interaction with a metal of the perovskite based oxide through electron orbital hybridization.
Claims17
An electrochemical catalyst structure comprising:
- a catalyst layer including a perovskite based oxide as an electrochemical oxygen reduction catalyst;
- and
- a modifying layer being in contact with the catalyst layer and including a transition metal oxide capable of chemical interaction with a metal of the perovskite based oxide through an electron orbital hybridization.
An electrochemical catalyst structure comprising:
- a catalyst particle including a perovskite based oxide as an electrochemical oxygen reduction catalyst;
- and
- a modifying particle including a transition metal oxide capable of chemical interaction with a metal of the perovskite-based oxide through electron orbital hybridization,
- wherein the modifying particle forms a core and the catalyst particle forms a shell surrounding at least a portion of a surface of the core so that the electrochemical catalyst structure has a core-shell secondary particle structure.
An electrochemical catalyst structure comprising:
- an electrolyte particle;
- a catalyst particle including a perovskite based oxide as an electrochemical oxygen reduction catalyst, and
- a modifying particle being in contact with the catalyst particle and including a transition metal oxide capable of chemical interaction with a metal of the perovskite based oxide through electron orbital hybridization,
- wherein the electrolyte particle forms a core and the catalyst particle and the modifying particle form a shell surrounding at least a portion of a surface of the core so that the electrochemical catalyst structure has a core-shell secondary particle structure.
17-22. (canceled)
Dependencies are inferred from the claim text.