Non-noble metal oxides consisting of CuO and TiO₂ (CuO/TiO₂ catalyst) for CO₂ reduction were fabricated using a simple hydrothermal method. The designed catalysts of CuO could be in situ reduced to a metallic Cu-forming Cu/TiO₂ catalyst, which could efficiently catalyze CO₂ reduction to multi-carbon oxygenates (ethanol, acetone, and n-propanol) with a maximum overall faradaic efficiency of 47.4% at a potential of −0.85 V vs. reversible hydrogen electrode (RHE) in 0.5 M KHCO₃ solution. The catalytic activity for CO₂ electroreduction strongly depends on the CuO contents of the catalysts as-prepared, resulting in different electrochemistry surface areas. The significantly improved CO₂ catalytic activity of CuO/TiO₂ might be due to the strong CO₂ adsorption ability.

Morphology-controlled CuO nanoparticles for electroreduction of CO ₂ with an excellent selectivity for ethanol.

A highly recyclable organically doped alloy catalyst for electrochemical reduction of CO₂ to different alcohols.

Electrochemical reduction of CO₂to methanol with 35% Faradaic efficiency on organically doped palladium cathode in aqueous solution.

A highly stable and recyclable catalyst, [PYD]@Cu–Pd, was demonstrated to have dual activity for electro-reduction of CO ₂ in aqueous solution.

A novel way to accommodate heterogeneous catalysis, CO₂fixation and asymmetric synthesis on one catalyst is reported.