Design Principle of Fe–N–C Electrocatalysts: How to Optimize Multimodal Porous Structures?
Seoul National University · Institute for Basic Science · +1 more institution
Abstract
The effect of porous structures on the electrocatalytic activity of N-doped carbon is studied by using electrochemical analysis techniques and the result is applied to synthesize highly active and stable Fe-N-C catalyst for oxygen reduction reaction (ORR). We developed synthetic procedures to prepare three types of N-doped carbon model catalysts that are designed for systematic comparison of the porous structures. The difference in their catalytic activity is investigated in relation to the surface area and the electrochemical parameters. We found that macro- and mesoporous structures contribute to different stages of the reaction kinetics. The catalytic activity is further enhanced by loading the optimized…
Citation impact
- FWCI
- 17.86
- Percentile
- 100%
- References
- 49
Authors
10- SHSoo Hong Lee
Seoul National University, Institute for Basic Science
- JKJiheon Kim
Seoul National University, Institute for Basic Science
- DYDong Young Chung
Seoul National University, Institute for Basic Science
- JMJi Mun Yoo
Seoul National University, Institute for Basic Science
- HSHyeon Seok Lee
Seoul National University, Institute for Basic Science
Topics & keywords
- Catalysis
- Chemistry
- Electrochemistry
- Mesoporous material
- Porosity
- Chemical engineering
- Carbon fibers
- Electrocatalyst