WO 3 /BiVO 4 photoanode coated with mesoporous Al 2 O 3 layer for oxidative production of hydrogen peroxide from water with high selectivity

A mesoporous and amorphous Al 2 O 3 layer coated on WO 3 /BiVO 4 photoanode significantly facilitated inhibiting the oxidative degradation of generated H 2 O 2 into O 2 on the photoanode, resulting in the achieving excellent H 2 O 2 selectivity.