Abstract
The sluggish kinetics of the oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) frequently hinder advances in Zn-air battery-dependent technologies. In this study, the chiral-induced spin selectivity (CISS) effect was employed to achieve spin alignment, resulting in a reduction in the reaction overpotential for chiral nanocatalysts compared to their compositionally similar achiral counterparts. Moreover, we demonstrated that chiral L-type Co@CoO catalysts (Co@CoO-L) could achieve outstanding oxygen electrocatalytic performances, overcoming thermodynamic limitations, by manipulating the spin alignment of the reaction intermediates during the catalytic reaction. Zn-air batteries assembled with Co@CoO-L exhibited excellent performances, including a high specific capacity (839.5 mA h g−1 @ 10 mA cm−2), large open-circuit voltage (1.47 V), and long-term cycling stability (800 h). This work provides new insights into the construction excellent catalysts by exploiting chiral-induced spin selectivity.
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