Main-group element-boosted oxygen electrocatalysis of Cu-N-C sites for zinc-air battery with cycling over 5000 h.

ABSTRACT: Developing highly active and durable air cathode catalysts is crucial yet challenging for rechargeable zinc-air batteries. Herein, a size-adjustable, flexible, and self-standing carbon membrane catalyst encapsulating adjacent Cu/Na dual-atom sites is prepared using a solution blow spinning technique combined with a pyrolysis strategy. The intrinsic activity of the Cu-N₄ site is boosted by the neighboring Na-containing functional group, which enhances O₂ adsorption and optimizes the rate-determining step of O₂ activation (*O₂ → *OOH) during the oxygen reduction reaction process. Meanwhile, the Cu-N₄ sites are encapsulated within carbon nanofibers and anchored by the carbon matrix to form a C₂-Cu-N₄ configuration, t

SUBMITTER: Li Y 

PROVIDER: S-EPMC11436649 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature