Facet- and structure-dependent catalytic activity of cuprous oxide/polypyrrole particles towards the efficient reduction of carbon dioxide to methanol

Cu₂O_(OL-MH)/Ppy particles selectively reduce CO₂to methanol with a faradaic efficiency of 93 ± 1.2% due to an efficient anion exchange mechanism, dominant low-index (111) facets and high-index (311), (211) facets of Cu₂O.