Speaker
Description
Carbon dioxide electrochemical reduction reaction (CO2ERR) is a route to convert unwanted CO2 into chemical products of interest (ethanol, methane…). Actual conversion processes present problems of low efficiency and selectivity. The main challenge for implementing CO2ERR is by finding novel electrocatalysts and optimized process conditions to achieve more selective production of the intended product, with a high conversion and production rate.
Attending to the catalysts, a higher active surface area greatly enhances the activity since reactions occur on the materials surface. In this sense, metallic foams, which are 3D high surface area porous materials composed by one or more metals, are presented as a potential candidate. The synthesis of these structures by the hydrogen bubbling dynamic template-electrodeposition (HBDT-ED) is a simple, inexpensive, scalable, flexible and environmentally friendly method that allows variations on composition, morphology, structure and porosity of the foams just by adjusting the synthesis conditions [1].
In this research, porous metal foams based are employed as catalysts for CO2ERR. Different experimental parameters (CO2 concentration, applied potential, electrode composition and microstructure,…) will be evaluated with the aim to optimized the system CO2 conversion.
Reference
[1] P. Arévalo-Cid et al. Mater. Charact. 2020, 169, 110598.
| Speaker Country | Portugal |
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