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Single Metal Atom catalysts electrochemical Reduction of CO2-To-CO (SMART-CO)

Project description

Automating synthesis of metal-nitrogen-carbon catalysts for CO2 reduction

Metal-nitrogen-carbon (M-N-C) materials are promising catalysts for CO2 reduction, making it possible to convert CO2 into useful, cost-effective products. However, their practical application is hindered by synthesis difficulties, poor understanding of the reduction mechanism and long-term degradation. With the support of the Marie Skłodowska-Curie Actions programme, the SMART-CO project will address these challenges to develop an automated approach for M-N-C synthesis. To do so, it will determine the metal cation solvation and its impact on CO2 reduction as well as analyse the active site density. Based on the rate of active site loss, the project will calculate catalyst lifetimes and identify properties limiting stability. Finally, it will design a stress test for M-N-Cs in CO2 electrolysers for faster screening and performance assessment.

Objective

Achieving net zero CO2 emissions requires replacing fossil fuel-derived precursors in the chemical industry, driving the rise of the Power-to-X electrochemical sector. CO2 can be electrochemically reduced into valuable products at cost-competitive prices. Earth abundant single metal atoms coordinated to N-doped C (M-N-C, M = Fe, Ni) can selectively reduce CO2 to CO (an important precursor to Fischer-Tropsch and fermentation), with the same activity and efficiency as current commercially used thick Ag and Au electrode. M-N-C therefore present a cheaper, accessible, and sustainable alternative. However, their practical implementation is restricted by their synthesis bottlenecks, poorly understood CO2 reduction mechanism and long term (≥100 h) degradation at practical current densities (≥200 mA cm-2). To solve these problems, I will introduce automated M-N-C synthesis innovatively adapted from the food industry. State-of-the-art operando NMR will uniquely resolve the metal cation solvation and impact on CO2 reduction, while emerging electrochemical techniques and in-situ X-ray absorption spectroscopy will probe the active site density. I will calculate catalyst lifetimes for the first time, based on the rate of active site loss, and establish catalyst properties limiting stability. I will use these insights to develop an accelerated stress test for M-N-Cs in CO2 electrolysers, facilitating faster screening and establishing a benchmarking tool for academia and industry. Thus, the proposed project will solve the three major challenges of catalyst scalability, selectivity, and stability and would equip me with scientific, technical and managerial skills to become a leading independent researcher in electrochemical technologies. The world-leading M-N-C synthesis, reaction mechanism expertise and state-of-the-art equipment available with Dr. Fellinger (host); and the wide scientific community at BAM, provide a synergistic environment to successfully host my project.

Fields of science (EuroSciVoc)

Keywords

Programme(s)

Topic(s)

Funding Scheme

HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships

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Call for proposal

(opens in new window) HORIZON-MSCA-2024-PF-01

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Coordinator

BUNDESANSTALT FUER MATERIALFORSCHUNG UND -PRUEFUNG
Net EU contribution
€ 202 125,12
Address
Unter den Eichen 87
12205 Berlin
Germany
Region
Berlin Berlin Berlin
Activity type
Research Organisations
Links
Total cost
No data