2026-04-17T16:16:46Zhttps://recercat.cat/oai/request

oai:recercat.cat:2072/4404712026-03-13T06:50:47Zcom_2072_98col_2072_378192

Tailoring Copper Foam with Silver Dendrite Catalysts for Highly Selective Carbon Dioxide Conversion into Carbon Monoxide Urbain, Félix Tang, PengYi Carretero González, Nina Magali Andreu, Teresa Arbiol i Cobos, Jordi Morante, Joan Ramon Electrodes Catalysts Deposition Foams Dendrons The present study outlines the important steps to bring electrochemical conversion of carbon dioxide (CO ) closer to commercial viability by using a large-scale metallic foam electrode as a highly conductive catalyst scaffold. Because of its versatility, it was possible to specifically tailor three-dimensional copper foam through coating with silver dendrite catalysts by electrodeposition. The requirements of high-yield CO conversion to carbon monoxide (CO) were met by tuning the deposition parameters toward a homogeneous coverage of the copper foam with nanosized dendrites, which additionally featured crystallographic surface orientations favoring CO production. The presented results evidence that Ag dendrites, owing a high density of planes with stepped (220) surface sites, paired with the superior active surface area of the copper foam can significantly foster the CO productivity. In a continuous flow-cell reactor setup, CO Faradaic efficiencies reaching from 85 to 96% for a wide range of low applied cathode potentials (<1.0 V ) along with high CO current densities up to 27 mA/cm were achieved, far outperforming other tested scaffold materials. Overall, this research provides new strategic guidelines for the fabrication of efficient and versatile cathodes for CO conversion compatible with large-scale integrated prototype devices. 2018 Article Agència de Gestió d'Ajuts Universitaris i de Recerca 2017/SGR-1246 Agència de Gestió d'Ajuts Universitaris i de Recerca 2017/SGR-327 Ministerio de Economía y Competitividad FJCI-2016-29147 Ministerio de Economía y Competitividad ENE2017-85087 Ministerio de Economía y Competitividad MAT2014-59961 Agencia Estatal de Investigación ENE2016-80788-C5-5-R Ministerio de Economía y Competitividad SEV-2013-0295 ACS applied materials & interfaces ; Vol. 10, Issue 50 (December 2018), p. 43650-43660 open access Aquest material està protegit per drets d'autor i/o drets afins. Podeu utilitzar aquest material en funció del que permet la legislació de drets d'autor i drets afins d'aplicació al vostre cas. Per a d'altres usos heu d'obtenir permís del(s) titular(s) de drets. https://rightsstatements.org/vocab/InC/1.0/