Selective Electrochemical Oxygen Reduction to Hydrogen Peroxide by Confinement of Cobalt Porphyrins in a Metal‐Organic Framework

Chemistry - A European Journal, vol. 30, pp. e202401339

Abstract

Abstract Sustainable alternatives for the energy intensive synthesis of H2O2 are necessary. Molecular cobalt catalysts show potential but are typically restricted by undesired bimolecular pathways leading to the breakdown of both H2O2 and the catalyst. The confinement of cobalt porphyrins in the PCN‐224 metal‐organic framework leads to an enhanced selectivity towards H2O2 and stability of the catalyst. Consequently, oxygen can now be selectively reduced to hydrogen peroxide with a stable conversion for at least 5 h, illustrating the potential of catalysts confined in MOFs to increase the selectivity and stability of electrocatalytic conversions.

Authors 5

1. Dana Rademaker Aachen

   Leiden University

   Affiliation as printed

   Leiden Institute of Chemistry Leiden University 2300 RA Leiden The Netherlands

   Leiden Institute of Chemistry Leiden University 2300 RA Leiden The Netherlands

2. Stefania Tanase

   University of Amsterdam

   Affiliation as printed

   Van't Hoff Institute for Molecular Sciences Universiteit van Amsterdam 1098 XH Amsterdam The Netherlands

   Van't Hoff Institute for Molecular Sciences Universiteit van Amsterdam 1098 XH Amsterdam The Netherlands

3. Hongrui Kang

   Technische Universität Darmstadt

   Affiliation as printed

   Surface Science Laboratory Department of Materials- and Geosciences Technical University of Darmstadt 64287 Darmstadt Germany

   Surface Science Laboratory Department of Materials- and Geosciences Technical University of Darmstadt 64287 Darmstadt Germany

4. Jan P. Hofmann

   Technische Universität Darmstadt

   Affiliation as printed

   Surface Science Laboratory Department of Materials- and Geosciences Technical University of Darmstadt 64287 Darmstadt Germany

   Surface Science Laboratory Department of Materials- and Geosciences Technical University of Darmstadt 64287 Darmstadt Germany

5. Dennis G. H. Hetterscheid corresponding Aachen Leiden Institute of Chemistry

   Leiden University

   Affiliation as printed

   Leiden Institute of Chemistry Leiden University 2300 RA Leiden The Netherlands

   Leiden University: Universiteit Leiden, Leiden Institute of Chemistry, Einsteinweg 55, Room number EE4.19, 2333 CC Leiden, NETHERLANDS