Scaling up electrochemical CO2 reduction: enhancing the performance of metalloporphyrin complexes in zero-gap electrolyzers

Wiebke Wiesner; Jenny Yurley Maldonado Arias; Julia Jökel; Rui Cao; Ulf-Peter Apfel

doi:10.1039/d4cc04497e

Scaling up electrochemical CO₂ reduction: enhancing the performance of metalloporphyrin complexes in zero-gap electrolyzers

Chem Commun (Camb). 2024 Nov 22. doi: 10.1039/d4cc04497e. Online ahead of print.

Authors

Wiebke Wiesner¹, Jenny Yurley Maldonado Arias², Julia Jökel², Rui Cao³, Ulf-Peter Apfel^{1

2}

Affiliations

¹ Ruhr-Universität Bochum, Fakultät für Chemie und Biochemie, Anorganische Chemie I, Universitätsstraße 150, 44801 Bochum, Germany. ulf.apfel@ruhr-uni-bochum.de.
² Fraunhofer UMSICHT, Department for Electrosynthesis, Osterfelder Str. 3, 46047 Oberhausen, Germany.
³ Shaanxi Normal University, Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Xi'an, 710119, China.

PMID: 39576048
DOI: 10.1039/d4cc04497e

Abstract

Metalloporphyrins are widely studied in the field of electrochemical CO₂ reduction (CO₂R), with the main focus on homogenous catalysis. Herein, six metalloporphyrins (M = Fe, Co, Ni, Cu, Zn, Ag) were incorporated in gas diffusion electrodes and used in zero-gap electrolyzers to reach varying FEs for CO of <1% (Fe,Ni), 11% (Cu), 37% (Zn), 75% (Co) and nearly 100% (Ag) at a current density of 50 mA cm^-2.