Deciphering Local Microstrain-Induced Optimization of Asymmetric Fe Single Atomic Sites for Efficient Oxygen Reduction (IMAGE)
Caption
- Crucial role of local microstrain was deciphered to boost oxygen electrocatalysis via quantitatively riveting asymmetric Fe–N3S1 sites on carbon hollow nanospheres with specific curvature.
- The local microstrain accelerates kinetics of *OH reduction on Fe–N3S1, enabling much enhanced intrinsic activity, selectivity and stability toward oxygen electrocatalysis.
- The strained Fe–N3S1 sites were monitored to transformed into Fe–N3–S1 sites, further dynamically mitigating the overadsorption of *OH intermediates.
Credit
Peng Zhang, Siying Huang, Kuo Chen, Xiaoqi Liu, Yachao Xu, Yongming Chai, Yunqi Liu, Yuan Pan.
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CC BY-NC-ND