公开(公告)号：US20250105307A1

公开(公告)日：2025-03-27

申请号：US18729848

申请日：2023-04-05

Applicant: Massachusetts Institute of Technology

Inventor： Harry L. Tuller ,  Clement Nicollet ,  Anna F. Staerz ,  Han Gil Seo

IPC: H01M4/90 ,  H01M4/86

Abstract: Some aspects of the present disclosure are related to modified electrodes, for example, for use in fuel cells. In some cases, the electrode may comprise a mixed-ionic-electronic-conducting (MIEC) oxide and a basic oxide. In some cases, the basic oxide may alter the electron density of the MIEC oxide and improve its catalytic performance, for example, like the oxygen reduction reaction. For instance, the catalytic performance of a MIEC oxide comprising a perovskite towards the oxygen reduction reaction (ORR) may be improved by using a basic oxide comprising CaO and/or Li2O. Some aspects disclosed herein are directed to methods of preventing or treating chromia or silica poisoning of a MIEC oxide, wherein the method comprises treating the MIEC electrode with a basic oxide infiltrant.