ArticleProceedings of the National Academy of Sciences of the United States of America2025
Direct control of electron spin at an intrinsically chiral surface for highly efficient oxygen reduction reaction.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
What it found
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The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
5 citing papers in PubMed.
- Advancing Lithium-Oxygen Batteries: Pioneering Cathode Catalyst Innovation and Artificial Intelligence-Driven Design Paradigms.Advanced materials (Deerfield Beach, Fla.) · 2026Review
- Chiral-Encoded Pt-Ir Surfaces as Apparent Spin Filter for Enhanced Oxygen Reduction.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Dynamic breaking of mirror symmetry in spin-dependent electron transport through chiral media causes enantiomeric excesses.Science advances · 2026Article
- Spin-Selective Anti-Perovskite Enables Breakthrough Nitrate-to-Ammonia Electrocatalysis.Advanced materials (Deerfield Beach, Fla.) · 2026Article
- Decoupling of Spin and Non-Spin Effects From Electronic Structure Modulation for Oxygen Electrocatalysis.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Review
Corrections and comments
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Authors and funding
13 authors.
Funding
Abstract
The oxygen reduction reaction (ORR) in acidic media suffers from sluggish kinetics, primarily due to the spin-dependent electron transfer involved. The direct generation of spin-polarized electrons at catalytic surfaces remains elusive, and the underlying mechanisms are still controversial due to the lack of intrinsically chiral catalysts. To address this challenge, we investigate topological homochiral PdGa (TH PdGa) crystals with intrinsically chiral catalytic surfaces for ORR. Through spin-resolved photoemission spectroscopy and theoretical simulations, we show that both structural chirality and spin-orbit coupling are critical for inducing spin polarization at the surface of TH PdGa. As a result, TH PdGa achieves a kinetic current density over 100 times higher than the achiral PdGa (AC PdGa) at 0.85 V versus the reversible hydrogen electrode. This work underscores the pivotal role of spin polarization in enhancing acidic ORR activity and lays the groundwork for the rational design of chiral catalysts for spin-dependent catalysis.
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Registered trials
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