Chemical Bonding in Photocatalytic Niobates and Tantalates
Chemical bonding effects have been discussed for anhydrous niobates and tantalates using binding energy differences ΔNb = (BE O 1s – BE Nb 3d5/2) and ΔTa = (BE O 1s – BE Ta 4f7/2) as key parameters to relate structural and electronic properties of these dielectric oxides. Such known photocatalytic materials as K4Nb6O17, Sr2Nb2O7, Ta2O5, LiTaO3, NaTaO3, NaTa2O6 and Sr2Ta2O7 are considered in particular.
V.V. Atuchin et al., "Chemical Bonding in Photocatalytic Niobates and Tantalates", Applied Mechanics and Materials, Vols. 110-116, pp. 534-539, 2012