Effects of Substrate and Polymer Encapsulation on CO2 Electroreduction by Immobilized Indium(III) Protoporphyrin

Yuvraj Y. Birdja, Rafaël E. Vos, Tim A. Wezendonk, Lin Jiang, Freek Kapteijn, Marc T.M. Koper

Research output: Contribution to journalArticleScientificpeer-review

23 Citations (Scopus)
30 Downloads (Pure)

Abstract

Heterogenization of molecular catalysts for CO2 electroreduction has attracted significant research activity, due to the combined advantages of homogeneous and heterogeneous catalysts. In this work, we demonstrate the strong influence of the nature of the substrate on the selectivity and reactivity of electrocatalytic CO2 reduction, as well as on the stability of the studied immobilized indium(III) protoporphyrin IX, for electrosynthesis of formic acid. Additionally, we investigate strategies to improve the CO2 reduction by tuning the chemical functionality of the substrate surface by means of electrochemical and plasma treatment and by catalyst encapsulation in polymer membranes. We point out several underlying factors that affect the performance of electrocatalytic CO2 reduction. The insights gained here allow one to optimize heterogenized molecular systems for enhanced CO2 electroreduction without modification of the catalyst itself.

Original languageEnglish
Pages (from-to)4420-4428
Number of pages9
JournalACS Catalysis
Volume8
Issue number5
DOIs
Publication statusPublished - 2018

Keywords

  • activity
  • CO electroreduction
  • immobilization
  • polymer encapsulation
  • pretreatment effect
  • selectivity
  • stability
  • substrate effect

Fingerprint Dive into the research topics of 'Effects of Substrate and Polymer Encapsulation on CO<sub>2</sub> Electroreduction by Immobilized Indium(III) Protoporphyrin'. Together they form a unique fingerprint.

Cite this