Boosting the stability of perovskites with exsolved nanoparticles by B-site supplement mechanism.

ABSTRACT: Perovskites with exsolved nanoparticles (P-eNs) have immense potentials for carbon dioxide (CO₂) reduction in solid oxide electrolysis cell. Despite the recent achievements in promoting the B-site cation exsolution for enhanced catalytic activities, the unsatisfactory stability of P-eNs at high voltages greatly impedes their practical applications and this issue has not been elucidated. In this study, we reveal that the formation of B-site vacancies in perovskite scaffold is the major contributor to the degradation of P-eNs; we then address this issue by fine-regulating the B-site supplement of the reduced Sr₂Fe_1.3Ni_0.2Mo_0.5O_6-δ using foreign Fe sources, achieving a robust perovskite scaffold and prolonged stability performa

SUBMITTER: Zhang BW 

PROVIDER: S-EPMC9359987 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature