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Mimicking Enzymatic Active Site Environment on Heterogeneous Electrodes: A Catalyst-Polymer Hybrid System for Selective CO2 Reduction Reaction in Water

Descrizione del progetto

Trasformare la CO2 in carburante con catalizzatori ispirati alla natura

Alluvioni, siccità e ondate di calore diventano sempre più frequenti con l’aumento dei livelli di CO2. Le fonti di energia pulita come l’eolico e il solare sono in espansione, ma non soddisfano ancora la domanda 24 ore su 24. Inoltre, l’industria pesante si basa ancora molto sui combustibili fossili. La riduzione elettrocatalitica della CO2 offre una via d’uscita convertendo la CO2 in preziosi combustibili utilizzando elettricità verde. Sostenuto dal programma di azioni Marie Skłodowska-Curie, il progetto MEASURE-CO2RR sta sviluppando catalizzatori ibridi che funzionano in acqua, sono facili da integrare nei dispositivi e migliorano drasticamente l’efficienza e la selettività. Inserendo catalizzatori molecolari nei polimeri, il progetto intende rendere il riciclaggio della CO2 più pulito, più economico e più vicino all’uso reale.

Obiettivo

Surging energy needs and fossil fuel reliance have triggered a concerning rise in CO2 emissions, raising the frequency of devastating climate-related disasters. Despite expanding renewable energy sources like solar and wind, their intermittent nature has spurred demand for better storage technologies due to the limitations of current batteries. Heavy industries and transport sectors still rely on fossil-based fuels. Although H2 appears as an alternative, challenges remain regarding its transport. Electrocatalytic CO2 reduction (eCO2R) emerges as a solution, turning CO2 into valuable chemicals and fuels (compatible with existing industrial frameworks) using green electricity.
Metal-based heterogeneous eCO2R catalysts exhibit notable stability but they face product selectivity issues, requiring energy-intensive downstream separation methods. Inspired by the active site of [NiFe]-CODH enzyme which efficiently converts CO2 to CO, many 2nd-sphere-modified molecular complexes (MCs) have been developed, showing elevated selectivity, efficiency, and stability. But most of them function within organic media, limiting their integration into devices. Moreover, synthesizing these 2nd sphere-modified MCs is highly resource-intensive.
MEASURE-CO2RR aspires to mimic the enzymatic active site on heterogeneous electrodes. This is achieved by encapsulating MCs within commercially available polymers, introducing both the 2nd-sphere (stabilizing intermediates) and tertiary-sphere effects (precise H+ delivery). Aiming to achieve high selectivity, catalytic current, and stability within an aqueous medium, MEASURE-CO2RR stands out by encompassing the development of hybrid catalytic systems, thorough mechanistic studies utilizing in-situ spectroscopic techniques, and eventual integration of these hybrid systems into CO2-electrolyzers. This marks a significant stride towards the essential industrial implementation of eCO2R, effectively aligning with the objectives of the EU Green Deal.

Campo scientifico (EuroSciVoc)

Parole chiave

Programma(i)

Argomento(i)

Meccanismo di finanziamento

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

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(si apre in una nuova finestra) HORIZON-MSCA-2024-PF-01

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Coordinatore

THE CHANCELLOR MASTERS AND SCHOLARS OF THE UNIVERSITY OF CAMBRIDGE
Contributo netto dell'UE
€ 276 187,92
Indirizzo
TRINITY LANE THE OLD SCHOOLS
CB2 1TN CAMBRIDGE
Regno Unito
Regione
East of England East Anglia Cambridgeshire CC
Tipo di attività
Higher or Secondary Education Establishments
Collegamenti
Costo totale
Nessun dato