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Catholyte-free flow cell enables high efficiency electroreduction of CO2 to C2 fuels

Descripción del proyecto

La «fotosíntesis» de combustibles a escala industrial: una forma natural de proteger el medio ambiente

Una forma excelente de reducir el CO2 de la atmósfera es capturarlo y convertirlo en otras sustancias químicas a base de carbono y combustibles de alto valor. La electrorreducción del CO2, que consiste en reducir el CO2 con electricidad, es una de las tecnologías más prometedoras, en especial esta electricidad procede de fuentes de energía renovables. El proyecto CF-CO2R, financiado con fondos europeos, trabaja para abordar los retos que presentan los electrocatalizadores actuales mediante una campaña combinada de experimentos y modelización. Los electrocatalizadores de alta eficiencia permitirán que la electrorreducción del CO2 pueda cumplir los requisitos de un despliegue industrial, lo que beneficiaría tanto el medio ambiente como la posición competitiva de la Unión Europea.

Objetivo

In the light of rising levels of atmospheric CO2 and associated climate change, the development of advanced techniques for CO2 conversion is of foremost importance. Particularly, many efforts have been made recently to synthesize efficient electrocatalysts for CO2 reduction to carbon fuels using renewable electricity. Nevertheless, to meet the requirement of industrial implementation, even the best performance of these recently developed electrocatalysts must be increased by one order of magnitude. Currently, energy efficiency of CO2 electroreduction is limited by energy-loss in catholyte and transport of CO2 to the cathode surface. The importance of transport limitations will grow as currents approach the higher levels required for industry. The vision for this work is the design of an efficient catholyte-free electrode structure and reactor, in combination with state-of-the-art photovoltaic, that can provide for the industry-ready artificial photosynthesis of carbon fuels. To achieve this goal, we will be dedicated to develop a membrane electrode assembly cell with the design of a catholyte-free flow-through-porous electrode which will allow the incorporation of newly types of nanostructured electrocatalysts and efficient CO2 transfer and conversion into specific carbon fuels such as ethylene or ethanol. Particularly, the proposed research aims include: (i) Development of efficient electrocatalysts that allow the formation of ideal products (ethylene/ethanol); (ii) Enhancement of electrocatalytic activity and stability via system engineering; (iii) Understanding the fundamentals of CO2 electroreduction and cell mechanics to accelerate the development of catholyte-free flow-through-porous electrode for the design of a scalable, high-performance CO2 electroconversion cell through both experiments and theoretical modeling; (iv) Achieving the scalable solar fuels production with CO2 reduction and photovoltaic in tandem.

Régimen de financiación

MSCA-IF-EF-ST - Standard EF

Coordinador

ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE
Aportación neta de la UEn
€ 191 149,44
Dirección
BATIMENT CE 3316 STATION 1
1015 Lausanne
Suiza

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Región
Schweiz/Suisse/Svizzera Région lémanique Vaud
Tipo de actividad
Higher or Secondary Education Establishments
Enlaces
Coste total
€ 191 149,44