Modulating Core Polarity in Metal-free Covalent Organic Frameworks for Selective Electrocatalytic Hydrogen Peroxide Production.

ABSTRACT: Tuning the charge density at the active site to balance the adsorption ability and reactivity of oxygen is extremely significant for driving a two-electron oxygen reduction reaction (ORR) to produce hydrogen peroxide (H₂O₂). Herein, we have highlighted the influence of intermolecular polarity in covalent organic frameworks (COFs) on the efficiency and selectivity of electrochemical H₂O₂ production. Different C3 symmetric building blocks have been utilized to regulate the charge density at the active sites. The benzene-cored COF, which exhibits reduced polarity than the triazine-cored COF, displayed enhanced performance in H₂O₂ production, achieving 93.1 % selectivity for H₂O₂ at 0.4 V with almost two-el

SUBMITTER: Mehta S 

PROVIDER: S-EPMC11773118 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature