Observation of Asymmetric Oxidation Catalysis with B20 Chiral Crystals**

Li, Guowei; Yang, Qun; Manna, Kaustuv; Zhang, Yudi; Merz, Patrick; Shekhar, Chandra; Zhang, Yang; Lv, Hua; Μάρκου, Αναστάσιος; Sun, Yan; Felser, Claudia

doi:10.1002/anie.202303296

Cited by 5 publications

(1 citation statement)

References 51 publications

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“…This is probably because Pt atoms have larger atomic numbers and hence stronger SOC effects than Pd atoms. Recent studies reveal that the topological chiral semimetals such as PdGa show promising applications in enantioselective catalytic reactions of chiral molecules 17,49,50 , which is a signature of the existence of the exotic interplay between the structural chirality of the material and its electron spin or orbital transport properties 3 . Our results reveal that the presence of the specific spin and orbital polarization carried by the transmitted electrons through PdGa will facilitate the theoretical understanding of the enantioselective chemistry in the material 51 .…”

Section: /23mentioning

confidence: 99%

Chirality Induced Spin Selectivity in Chiral Crystals

Yan,

et al. 2024

Preprint

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Chirality is a fundamental property of great importance in physics, chemistry, and biology, and is recently found to generate unexpected spin polarization for electrons passing through organic molecules, known as chirality-induced spin selectivity (CISS). CISS shows promising application potential in spintronic devices, spin-controlled chemistry and enantiomer separation. It focuses on organic molecules that exhibit poor electronic conductivity and inherent complexities, such as the debated role of SOC at the molecule-metal interface. In this work, we go beyond organic molecules and study chiral solids with excellent electrical conductivity, intrinsic SOC and topological electronic structures. We demonstrate that electrons exhibit both spin and orbital polarization as they pass through chiral crystals. Both polarization increases with material thickness before saturating to the bulk values. The spin polarization is proportional to intrinsic SOC while the orbital polarization is insensitive to SOC. The large spin polarization comes with strong electrical magnetochiral anisotropy in the magneto-transport of these chiral crystals (e.g., RhSi). Our work reveals the interplay of chirality, electron spin, and orbital in chiral crystals, paving the way for developing chiral solids for chirality-induced phenomena.

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Section: /23mentioning

confidence: 99%

Chirality Induced Spin Selectivity in Chiral Crystals

Yan,

et al. 2024

Preprint

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Chiral Quantum Materials: When Chemistry Meets Physics

Wang,

Yi,

Felser

2023

Advanced Materials

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Chirality is a fundamental property of nature with relevance in biochemistry and physics, particularly in the field of catalysis. Understanding the mechanisms underlying chirality transfer is crucial for advancing the knowledge of chiral‐related catalysis. Chiral quantum materials with intriguing chirality‐dependent electronic properties, such as spin‐orbital coupling (SOC) and exotic spin/orbital angular momentum (SAM/OAM), open novel avenues for linking solid‐state topologies with chiral catalysis. In this review, the growth of topological homochiral crystals (THCs) is described, and their applications in heterogeneous catalysis, including hydrogen evolution reaction (HER), oxygen electrocatalysis, and asymmetric catalysis are summarized. A possible link between chirality‐dependent electronic properties and heterogeneous catalysis is discussed. Finally, existing challenges in this field are highlighted, and a brief outlook on the impact of THCs on the overarching chemical–physical research is presented.

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From Charge to Spin: An In‐Depth Exploration of Electron Transfer in Energy Electrocatalysis

Sun,

Zhang,

Shi

et al. 2024

Advanced Materials

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Catalytic materials play crucial roles in various energy‐related processes, ranging from large‐scale chemical production to advancements in renewable energy technologies. Despite a century of dedicated research, major enduring challenges associated with enhancing catalyst efficiency and durability, particularly in green energy‐related electrochemical reactions, remain. Focusing only on either the crystal structure or electronic structure of a catalyst is deemed insufficient to break the linear scaling relationship (LSR), which is the golden rule for the design of advanced catalysts. The discourse in this review intricately outlines the essence of heterogenous catalysis reactions by highlighting the vital roles played by electron properties. The physical and electrochemical properties of electron charge and spin that govern catalysis efficiencies are analyzed. Emphasis is placed on the pronounced influence of external fields in perturbing the LSR, underscoring the vital role that electron spin plays in advancing high‐performance catalyst design. The review culminates by proffering insights into the potential applications of spin catalysis, concluding with a discussion of extant challenges and inherent limitations. This article is protected by copyright. All rights reserved

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Observation of Asymmetric Oxidation Catalysis with B20 Chiral Crystals**

Cited by 5 publications

References 51 publications

Chirality Induced Spin Selectivity in Chiral Crystals

Chirality Induced Spin Selectivity in Chiral Crystals

Chiral Quantum Materials: When Chemistry Meets Physics

From Charge to Spin: An In‐Depth Exploration of Electron Transfer in Energy Electrocatalysis

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