Fe,N Co-doped Mesoporous Carbon Nanosheets for Oxygen Reduction

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

View graph of relations

Detail(s)

Original languageEnglish
Number of pages23
Journal / PublicationACS Applied Nano Materials
Online published8 May 2020
Publication statusOnline published - 8 May 2020

Abstract

Carbon nanomaterials codoped with transition metal and nitrogen have appeared as one of the most potential candidates to replace noble metal-based oxygen reduction catalyst. However, it remains a challenge to achieve precise and convenient control over the structural parameters on carbon materials for optimal ORR efficiency. Herein, a straightforward and feasible pore-forming method for fabricating mesoporous carbon nanosheets co-doped with transition metal and nitrogen was rationally designed by tactfully introducing zinc nitrate into the carbonization process. When applied for catalyzing ORR, iron and nitrogen co-doped mesoporous carbon nanosheets synthesized with the aid of zinc nitrate displayed a half-wave potential of 0.92 V, which was significantly better than the catalyst synthesized without zinc nitrate and commercial Pt/C catalyst. Typical catalyst was methanol tolerable and showed only 8% current decay under alkaline condition after 50,000s. The vital roles of zinc nitrate in developing high performance ORR catalysts were also unraveled.

Research Area(s)

  • ORR, Carbon Nanosheets, Mesopores, Pore-forming Strategy, Zinc Nitrate