- Research Article
- 10.1002/smll.73465
Spin Control at Bi–Bi <sub>2</sub> O <sub>3</sub> Heterointerfaces for Highly Efficient Electrosynthesis of Glycine
- Apr 21, 2026
- Small
- Yufeng Li + 6 more +6
ABSTRACT Electrocatalytic C─N coupling offers an efficient and sustainable pathway for glycine synthesis; however, its efficiency is limited by key intermediates conversion involving spin‐state reconfiguration. Herein, we develop a heterostructured catalyst that can induce a high density of Bi (OVs) sites with localized magnetic moments via oxygen‐vacancy formation at the Bi/Bi 2 O 3 interfaces. Within the eBi–Bi 2 O 3 catalyst, Bi sites serve as the primary adsorption sites for NO 3 − and the conversions of closed‐shell intermediates, while Bi (OVs) sites selectively facilitate the spin‐state reconfiguration of the adsorbed *NO to *NHO. This synergistic Bi/Bi (OVs) configuration promotes the subsequent formation of hydroxylamine as a crucial reaction intermediate and steers the reaction pathway toward favorable glycine synthesis. The eBi–Bi 2 O 3 catalyst exhibits an attractive Faradaic efficiency of 80.32% and yield rate of approximate 1000 µmol h −1 cm −2 for glycine synthesis, establishing one of the best overall performances reported to date. This work offers a pioneering strategy for developing spin catalysts applicable to electrochemical reactions involving complex multi‐step pathways.
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