CO2 Electrolysis via Surface-Engineering Electrografted Pyridines on Silver Catalysts

Maryam Abdinejad, Erdem Irtem, Amirhossein Farzi, Mark Sassenburg, Siddhartha Subramanian, Hugo Pieter Iglesias Van Montfort, Davide Ripepi, Mengran Li, Joost Middelkoop, Ali Seifitokaldani, Thomas Burdyny*

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

15 Citations (Scopus)
71 Downloads (Pure)


The electrochemical reduction of carbon dioxide (CO2) to value-added materials has received considerable attention. Both bulk transition-metal catalysts and molecular catalysts affixed to conductive noncatalytic solid supports represent a promising approach toward the electroreduction of CO2. Here, we report a combined silver (Ag) and pyridine catalyst through a one-pot and irreversible electrografting process, which demonstrates the enhanced CO2conversion versus individual counterparts. We find that by tailoring the pyridine carbon chain length, a 200 mV shift in the onset potential is obtainable compared to the bare silver electrode. A 10-fold activity enhancement at -0.7 V vs reversible hydrogen electrode (RHE) is then observed with demonstratable higher partial current densities for CO, indicating that a cocatalytic effect is attainable through the integration of the two different catalytic structures. We extended the performance to a flow cell operating at 150 mA/cm2, demonstrating the approach's potential for substantial adaptation with various transition metals as supports and electrografted molecular cocatalysts.

Original languageEnglish
Pages (from-to)7862-7876
JournalACS Catalysis
Issue number13
Publication statusPublished - 2022


  • carbon dioxide reduction
  • electrografting
  • heterogeneous electrocatalysts
  • pyridine catalysts
  • silver electrocatalyst


Dive into the research topics of 'CO2 Electrolysis via Surface-Engineering Electrografted Pyridines on Silver Catalysts'. Together they form a unique fingerprint.

Cite this