Activity, selectivity, and stability of earth-abundant CuO/Cu2O/Cu0-based photocatalysts toward CO2 reduction

Cu-based photocatalysts are widely used for the photocatalytic reduction of CO2 owing to their non-toxicity, earth abundance, extended light absorption, suppressed charge recombination, and good catalytic performance. In addition to low cost, abundant availability, and the ease of synthesis, they exhibit unique features, such as broad optical absorption, reaction intermediates stabilization, and C–C coupling ability, which lead to the formation...