Super-Dispersed Fe-N Sites Embedded into Porous Graphitic Carbon for ORR: Size, Composition and Activity Control.

ABSTRACT: Searching for high-efficient, good long-term stability, and low-cost electrocatalysts toward oxygen reduction reaction (ORR) is highly desirable for the development of sustainable energy conversion devices. Iron-nitrogen doped carbon (Fe-N/C) catalysts have been recognized as the most promising candidates for traditional Pt-based catalysts that benefit from their high activity, excellent anti-poisoning ability, and inexpensiveness. Here, a super-dispersed and high-performance Fe-N/C catalyst was derived from chemically Fe-doped zeolitic imidazolate frameworks (ZIFs) by directly bonding Fe ions to imidazolate ligands within 3D frameworks. It produced a series of catalysts, whose sizes could be tuned in the range from 62 to over 473 nm in diameter. After rationally regulating the component a

SUBMITTER: Wang XY 

PROVIDER: S-EPMC8399882 | biostudies-literature | 2021 Aug

REPOSITORIES: biostudies-literature