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The chiral-induced spin selectivity (CISS) effect offers a novel paradigm for designing high-performance catalysts for spin-dependent oxygen evolution reactions (OER). Layered double hydroxides (LDHs), are widely used for oxygen evolution reaction (OER) due to their superior electrocatalytic activity and stability in alkaline environments. Here, we demonstrate that intercalating chiral phenylalanine molecules into CoFe-LDH induces spin-polarized OER via the CISS effect, while simultaneously expanding the interlayer spacing. The resulting chiral–inorganic hybrid interface directs the reaction along a lower-energy pathway, promoting the formation of triplet O¬2, and exhibits outstanding OER performance with a lower overpotential of 245 mV at 10 mA cm-2, as well as faster charge-transfer kinetics compared to its achiral counterpart. Using in situ XANES, in situ Raman spectroscopy, and nanoscale scanning electrochemical cell microscopy (SECCM), we further uncover the fundamental origin of this chiral-induced spin-selective behavior. This study establishes a general strategy for designing advanced, stable oxide-based electrocatalysts, where intercalated chiral molecules manipulate spin dynamics to improve reaction kinetics and selectivity.

権利情報:

• Creative Commons BY Attribution 4.0 International
  

キーワード: chiral-induced spin selectivity, in situ observation, layered double hydroxides, molecule intercalation, oxygen evolution reaction

刊行年月日: 2026-06-16

出版者: Wiley

掲載誌:

• Advanced Science (ISSN: 21983844) vol. 13 issue. 50 e76090

研究助成金:

• National Science and Technology Council NSTC‐114‐2112‐M‐002‐032‐MY3
• National Science and Technology Council 113‐2124‐M‐002‐007‐
• National Synchrotron Radiation Research Center

原稿種別: 出版者版 (Version of record)

MDR DOI:

公開URL: https://doi.org/10.1002/advs.76090

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更新時刻: 2026-09-24 14:15:10 +0900

MDRでの公開時刻: 2026-09-24 16:45:07 +0900