Related Experiment Video
Updated: Sep 10, 2025

Development of Heterogeneous Enantioselective Catalysts using Chiral Metal-Organic Frameworks MOFs
Published on: January 17, 2020
An Insight into the Relation of Spin-Polarization and Oxygen Evolution Enhancement with a Monolayer Chiral Covalent
Zhiping Liu1, Shaofang Zhang2, Enbing Zhang1
1Key Laboratory of Organic Integrated Circuits, Ministry of Education & Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China.
Abstract:
Manipulating the electron spin state through the chiral-induced spin selectivity (CISS) effect provides a novel strategy for enhancing the activity and selectivity of the oxygen evolution reaction (OER). However, developing a quantitative relationship between the CISS effect and the chirality-enhanced OER performance is difficult due to complex influencing factors. Herein, using a ligand exchange strategy, we developed a monolayer chiral covalent organic framework (mc-COF) model catalytic system with adjustable spin polarization (P = ∼49-72%), which allows the decoupling of the CISS effect from other influencing factors on the OER performance. A supralinear dependence between the spin polarization and chirality-enhanced OER performance is established. This confirms that the chirality-enhanced electrocatalytic performance is significantly amplified by spin polarization due to the CISS effect. Moreover, in situ measurements reveal that the CISS effect of mc-COFs optimizes the reaction pathway by aligning *OH spins parallel, suppressing H2O2 formation, facilitating spin-oriented intermediates (*OOH and *OO) at lower potentials, and accelerating *OOH-to-*O-O conversion.
Related Concept Videos
Spin–Spin Coupling: One-Bond Coupling
Oxidation and Reduction of Organic Molecules
The removal of an electron from a molecule, results in a...
Photochemical Electrocyclic Reactions: Stereochemistry
Selection Rules: Photochemical Activation
ortho–para-Directing Activators: –CH3, –OH, –⁠NH2, –OCH3
Molecules with Multiple Chiral Centers
Oxidation of Alkenes: Syn Dihydroxylation with Osmium Tetraoxide

