M(NN)(CO)3X (M = Re, Mn) complexes with a bulky diimine ligand catalyse electrochemical reduction of CO2 with high TON. A noble-metal free system of the Mn-complex photosensitised by a Zn-porphyrin photocatalytically reduces CO2 under visible light.
Ceramic boron carbon nitrides are utilized as semiconductor for solar energy conversion. The photocatalyst provides a low-cost, robust, metal-free, and ambient method for sustainable photosynthesis.
Colloidal quantum dots (QDs) of toxic plumbum and cadmium compounds, i.e., Pb/Cd(S,Se,Te), are widely studied for hydrogen generation because of their promising optoelectronic properties and efficient photocatalytic activity. However it...