Effects of Substrate and Polymer Encapsulation on CO2 Electroreduction by Immobilized Indium(III) Protoporphyrin
| Autor: | Freek Kapteijn, Tim A. Wezendonk, Marc T. M. Koper, Lin Jiang, Yuvraj Y. Birdja, Rafaël E. Vos |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
substrate effect
Formic acid CO2 electroreduction Synthetic membrane chemistry.chemical_element 02 engineering and technology 010402 general chemistry Electrosynthesis Electrochemistry 01 natural sciences CO electroreduction Catalysis chemistry.chemical_compound Protoporphyrin IX pretreatment effect activity selectivity General Chemistry stability 021001 nanoscience & nanotechnology polymer encapsulation 0104 chemical sciences chemistry Chemical engineering immobilization 0210 nano-technology Selectivity Indium Research Article |
| Zdroj: | ACS Catalysis, 8(5) ACS Catalysis ACS CATALYSIS ACS CATALYSIS, 8(5), 4420–4428 |
| ISSN: | 2155-5435 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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