Noble-Metal-Free Fe–N/C Catalyst for Highly Efficient Oxygen Reduction Reaction under Both Alkaline and Acidic Conditions
University of Science and Technology of China · Hefei National Center for Physical Sciences at Nanoscale
Abstract
In this work, we report the synthesis and assessment of a new non-precious-metal oxygen reduction reaction (ORR) catalyst from pyrolysis of an iron-coordinated complex which manifests superior activity in both alkaline and acidic media. 11,11'-bis(dipyrido[3,2-a:2',3'-c]phenazinyl) (bidppz) was selected as a ligand for the formation of a nitrogen-rich iron-coordinated coordination polymer (Fe-bidppz) which forms a self-supporting catalyst containing high densities of nitrogen and iron doping by pyrolysis. The catalyst pyrolyzed at 800 °C (Fe-N/C-800) shows the highest ORR activity with onset and half-wave potentials of 923 and 809 mV in 0.1 M KOH, respectively, which are comparable to those of Pt/C (half-wave…
Citation impact
- FWCI
- 32.60
- Percentile
- 100%
- References
- 50
Authors
3- LLLing LinCorresponding
University of Science and Technology of China, Hefei National Center for Physical Sciences at Nanoscale
- QZQing Zhu
University of Science and Technology of China, Hefei National Center for Physical Sciences at Nanoscale
- AXAn‐Wu Xu
Hefei National Center for Physical Sciences at Nanoscale, University of Science and Technology of China
Topics & keywords
- Catalysis
- Chemistry
- Methanol
- Pyrolysis
- Metal
- Electrochemistry
- Inorganic chemistry
- Nitrogen
- Clean water and sanitation