On-Surface Modification of Copper Cathodes by Copper(I)-Catalyzed Azide Alkyne Cycloaddition and CO2 Reduction in Organic Environments.

ABSTRACT: In this study, organic structures were introduced onto copper cathodes to induce changes in their electrocatalytic CO2 reduction activity. Poorly soluble organic polymers were distributed onto the copper surface as a thin layer by polymerizing monomeric precursors via a copper(I)-catalyzed azide-alkyne cycloaddition (CuAAC) activated by anodization of the copper substrate. The resulting structure possesses copper surface atoms that are available to participate in the CO2 reduction reaction-comparable to close-contact organic structures-and stabilize the adsorption of organic layers through the CO2 reduction process. The CO2 reduction performance of the on-surface modified copper cathode exhibited improved CO2 reduction over H2 evolution compared with traditional cast modification systems.

SUBMITTER: Igarashi R 

PROVIDER: S-EPMC6951422 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature