The impact of iron–boron electrocatalysts on the charge transport and oxygen evolution reaction of bismuth vanadate photoanodes

Abstract

BiVO4 possesses a suitable band gap for photoelectrochemical (PEC) water splitting to produce hydrogen, however, the performance of BiVO4 is limited by several adverse factors. The bulk charge recombination and...

Flame doping of indium ions into TiO2 nanorod arrays for enhanced photochemical water oxidation

“…Additionally, whilst the TiO 2 NR arrays are capable of providing a large surface area, the rapid recombination of the carriers greatly impedes the photocurrent and quantum efficiency, akin to direct bandgap semiconductors. [4][5][6] To overcome these defects, strategies such as using a cocatalyst, controlling the nanostructure, and heterojunction engineering have been developed to enhance the charge separation of the TiO 2 photoanode. [7][8][9] Of all such strategies, ion doping has been demonstrated as an effective way to dramati-cally improve photo-generated charge separation, thus improving the photocatalytic performance of TiO 2 photocatalysis.…”

“…Additionally, whilst the TiO 2 NR arrays are capable of providing a large surface area, the rapid recombination of the carriers greatly impedes the photocurrent and quantum efficiency, akin to direct bandgap semiconductors. 4–6…”