Tuning π-Conjugated Corroles for Heterogeneous Catalysis

Description

In this talk, we demonstrate a method to tune OER/ORR selectivity by adjusting the local metal density through simple oligo-/polymerization of novel π-conjugated metal A2B and A3-corroles to linear and two-dimensional matrix structures. [1] These heterogeneous catalysts exhibit remarkable physicochemical properties, fast charge transfer kinetics, electrochemical reversibility, and high durability. As an example, unselective three-electron transfer kinetics with n = 2.5–2.9 in between -0.20 V and +0.40 V vs. RHE are detected with the π-conjugated cobalt(III) A2B- corrole polymers. Highly selective four-electron kinetics with n = 3.7 in between -0.20 V and +0.40 V vs. RHE are detected by employing the cobalt A3-corrole oligomers during the ORR catalysis.

Period	24 Jun 2024
Event title	International Conference on Porphyrins and Phthalocyanines (ICPP)
Event type	Conference
Location	United StatesShow on map