The application of nickel molybdate and nickel vanadates as photoanodes in a photoelectrochemical cell

Abstract

The application of nickel molybdate, NiMoO4, and the nickel vanadates NiV2O6, Ni2V2O7 and Ni3V2O8 as photoanodes in a photoelectrochemical cell is investigated. Based on the optical and structural properties reported and discussed, NiV2O6 would be a good candidate, but attempts to prepare dense pellets were not successful. For Ni2V2O7 and Ni3V2O8 no photocurrents were observed. This is discussed in relation with the crystal structure of these compounds.