Mo6+ Doped BiVO4 with improved Charge Separation and Oxidation Kinetics for Photoelectrochemical Water Splitting

Tuning Light‐Driven Water Splitting Efficiency of Mo‐Doped BiVO4: Optimised Preparation and Impact of Oxygen Evolution Electrocatalysts

“…RHE and at 420 nm showed an efficiency of 19 %, while the other samples do not exceed 13 %. Despite the IPCE values were obtained at about 400 mV lower bias potential, they were comparable with those obtained with other non‐structured Mo‐doped BiVO 4 samples reported in the literature under front‐side illumination (Table ) . In other words, the spray‐coated Mo : BiVO 4 photoanodes have a similar efficiency at a significant lower externally applied driving force.…”

“…BiVO 4 has been previously prepared using various techniques such as electrodeposition, sputter deposition and dip, spin‐ or spray‐coating of suitable precursor materials . Spray‐coating is not dependent on the electrical conductivity of a given material and hence homogeneous films can be prepared on large sample areas …”

“…In the last years, a wide range of incident photon‐to‐current efficiency (IPCE) values was published for Mo : BiVO 4 photoanodes prepared using a variety of different techniques . Moreover, in order to improve the efficiency, strategies such as a specific film architecture, doping and modification with OECs were applied.…”

Bimetallic phosphide decorated Mo–BiVO4 for significantly improved photoelectrochemical activity and stability

“…164 eV and 159 eV, respectively, which are the characteristic peaks of Bi 3+ species. 12,18 The signals of V2p (Fig. 3b) are located at ca.…”

“…10 Doping transition metal ions have been proved to be an effective way to overcome the limitation of charge separation and migration. 11,12 Especially, among various metal ions, Mo is reported to be the better one to enhance the PEC activity of BiVO 4 . 13 Moreover, in order to accelerate the surface reaction kinetics, decorating adequate oxygen evolution cocatalysts on semiconductors is well accepted, which can effectively lower the activation energy of water oxidation reaction and further decrease the rate of charge recombination.…”