Li H, Wen P, Itanze DS, Hood ZD, Ma X, Kim M, Adhikari S, Lu C, Dun C, Chi M, Qiu Y, Geyer SM. Colloidal silver diphosphide (AgP2) nanocrystals as low overpotential catalysts for CO2 reduction to tunable syngas. Nat Commun. 2019 Dec 16; 10(1):5724.