Seminars Archive

Thu 17 Jul, at 14:00 - Seminar Room MM

CO2 electroreduction: design of a viable way for hydrocarbon production by electrocatalysis

Jonathan Filippi
Istituto di Chimica dei Composti OrganoMetallici, Consiglio Nazionale delle Ricerche, ICCOM-CNR Area di ricerca di Firenze

The conversion of carbon dioxide to fuels and chemicals is a technology potentially capable of controlling the atmospheric levels of CO2 and promote the storage of excess renewable energy. In particular, the use of copper as electrocatalyst for the carbon dioxide conversion give access to a variety of hydrocarbon products with interesting faradaic efficiencies. Furthermore, the possibility to swap the classical water oxidation anode with an alcohol oxidation anode (in alkaline media) leads to a dramatic reduction of the operating potentials, and hence, of the energy consumptions. The key advantage of the complete system, equipped with a copper-phtalocyanine-based cathode, an alkaline exchange membrane and a Pd@Tianode , is represented by the possibility to produce useful levels of hydrocarbons (mainly CH4 and C2H4) with lower energy consumptions (77 kWh vs. 130 kWh per kg of hydrocarbon mixture) when compared with the cell relying on a water oxidation anode[1]. In addition, the alcohol oxidation anode, operating in alkaline conditions, produces useful feedstock such as acetate. Therefore, the complete system is able to produce hydrocarbons from CO2 and useful chemicals by electrocatalysis.

[1] M. Bevilacqua, J. Filippi, A. Lavacchi, A. Marchionni, H. A. Miller, W. Oberhauser, E. Vesselli, F. Vizza, “Energy Savings in the Conversion of CO2 to Fuels using an Electrolytic Device”, Energy Technology, 2(6), (2014), 522-525

(Referer: Erik Vesselli)
Last Updated on Tuesday, 24 April 2012 15:21