articleJournal of the American Chemical SocietyMar 28, 2019Closed access

Versatile Strategy for Tuning ORR Activity of a Single Fe-N 4 Site by Controlling Electron-Withdrawing/Donating Properties of a Carbon Plane

YMYeongdong MunSLSeong-Gyu LeeKKKyeounghak KimSKSeongbeen KimSLSeunghyun Lee

Pohang University of Science and Technology · Korea Advanced Institute of Science and Technology

Indexed incrossref

Abstract

Replacement of Pt-based oxygen reduction reaction (ORR) catalysts with non-precious metal catalysts (NPMCs) such as Fe/N/C is one of the most important issues in the commercialization of proton exchange membrane fuel cells (PEMFCs). Despite numerous studies on Fe/N/C catalysts, a fundamental study on the development of a versatile strategy is still required for tuning the kinetic activity of a single Fe-N4 site. Herein, we report a new and intuitive design strategy for tuning and enhancing the kinetic activity of a single Fe-N4 site by controlling electron-withdrawing/donating properties of a carbon plane with the incorporation of sulfur functionalities. The effect of electron-withdrawing/donating…

Citation impact

692
total citations
FWCI
21.00
Percentile
100%
References
56
Citations per year

Authors

7

Topics & keywords

Topics
Keywords
  • Chemistry
  • Catalysis
  • Proton exchange membrane fuel cell
  • Sulfur
  • Polar effect
  • Cathode
  • Combinatorial chemistry
  • Adsorption
No related works found for this paper.

Funding