Understanding the High Activity of Fe–N–C Electrocatalysts in Oxygen Reduction: Fe/Fe 3 C Nanoparticles Boost the Activity of Fe–N x
Beijing National Laboratory for Molecular Sciences · Institute of Chemistry · +6 more institutions
Abstract
Understanding the origin of high activity of Fe-N-C electrocatalysts in oxygen reduction reaction (ORR) is critical but still challenging for developing efficient sustainable nonprecious metal catalysts in fuel cells and metal-air batteries. Herein, we developed a new highly active Fe-N-C ORR catalyst containing Fe-N(x) coordination sites and Fe/Fe3C nanocrystals (Fe@C-FeNC), and revealed the origin of its activity by intensively investigating the composition and the structure of the catalyst and their correlations with the electrochemical performance. The detailed analyses unambiguously confirmed the coexistence of Fe/Fe3C nanocrystals and Fe-N(x) in the best catalyst. A series of designed experiments…
Citation impact
- FWCI
- 73.21
- Percentile
- 100%
- References
- 70
Authors
10- WJWenjie JiangCorresponding
Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, University of Chinese Academy of Sciences, Chongqing University
- LGLin Gu
Institute of Physics, Collaborative Innovation Center of Quantum Matter, Chinese Academy of Sciences
- LLLi Li
Chongqing University
- YZYun Zhang
Chongqing University, University of Chinese Academy of Sciences, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry
- XZXing Zhang
Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, University of Chinese Academy of Sciences
Topics & keywords
- Chemistry
- Oxygen reduction
- Nanoparticle
- Oxygen reduction reaction
- Reduction (mathematics)
- Oxygen
- Inorganic chemistry
- Nuclear chemistry