N-doped zeolite-templated carbon as a metal-free electrocatalyst for oxygen reduction. Issue 49 (3rd May 2016)

• Record Type: Journal Article
• Authors: Kwon, Yonghyun; Kim, Kyoungsoo; Ryoo, Ryong
• Is Part Of: RSC advances. Volume 6:Issue 49(2016)
• Page Start: 43091
• Page End: 43097
• Publication Date: 2016-05-03
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c6ra08085e
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : Nitrogen-doped zeolite-templated carbon having 3-dimensionally microporous structure exhibited low surface work function and high catalytic performance for oxygen reduction. Abstract : Nitrogen-doped, zeolite-templated carbon was synthesized using aqueous acetonitrile as a nitrogen-containing carbon source, and beta zeolite as a template. The carbon had a three-dimensionally ordered microporous structure with a large surface area, which consisted of sp 2 -carbon. The nitrogen content was approximately 4 wt%. In the electrocatalytic oxygen reduction reaction, the nitrogen-doped zeolite-templated carbon showed a notably high current density and a positive onset potential as compared to nitrogen-doped reduced graphene oxide. The surface of this carbon also had a lower work function than that of planar graphene. The high catalytic performance with the low work function of this carbon seems to come from a curved graphene-like framework structure containing nitrogen.