Markedly Enhanced Oxygen Reduction Activity of Single-Atom Fe Catalysts via Integration with Fe Nanoclusters
Georgia Institute of Technology · Huazhong University of Science and Technology · +5 more institutions
Abstract
Single-atom catalysts (SACs) have emerged as one of the most promising alternatives to noble metal-based catalysts for highly efficient oxygen reduction reaction (ORR). While SACs can offer notable benefits in terms of lowering overall catalyst cost, there is still room for improvement regarding catalyst activity. To this end, we designed and successfully fabricated an ORR electrocatalyst in which atomic clusters are embedded in an atomically dispersed Fe–N–C matrix (FeAC@FeSA–N–C), as shown by comprehensive measurements using aberration-corrected scanning transmission electron microscopy (AC-STEM) and X-ray absorption spectroscopy (XAS). The half-wave potential of FeAC@FeSA–N–C is 0.912 V (versus reversible…
Citation impact
- FWCI
- 14.31
- Percentile
- 100%
- References
- 66
Authors
11- XAXiang Ao
Georgia Institute of Technology, Huazhong University of Science and Technology
- WZWei Zhang
University of Nebraska–Lincoln, Beijing University of Chemical Technology
- ZLZhishan Li
Huazhong University of Science and Technology
- JLJiangang Li
Huazhong University of Science and Technology
- LSLuke Soule
Georgia Institute of Technology
Topics & keywords
- Nanoclusters
- Catalysis
- Oxygen reduction
- Oxygen reduction reaction
- Materials science
- Reduction (mathematics)
- Atom (system on chip)
- Oxygen