@article{9001,
  author = {P.P. Kunturu and M. Lavorenti and S. Bera and H. Johnson and S. Kinge and M.C. M. van de Sanden and M.N. Tsampas},
  title = {Scaling up BiVO4 Photoanodes on Ti Porous Transport Layers for Solar Hydrogen Production},
  abstract = {Commercialization of photoelectrochemical (PEC) water-splitting devices requires the development of large-area, low-cost photoanodes with high efficiency and photostability. Herein, we address these challenges by using scalable fabrication techniques and porous transport layer (PTLs) electrode supports. We demonstrate the deposition of W-doped BiVO4 on Ti PTLs using successive-ionic-layer-adsorption-and-reaction methods followed by boron treatment and chemical bath deposition of NiFeOOH co-catalyst. The use of PTLs that facilitate efficient mass and charge transfer, allowed the scaling of the photoanodes (100 cm2) while maintaining ~90% of the performance obtained with 1 cm2 photoanodes for oxygen evolution reaction i.e. 2.10 mA cm-2 at 1.23 V vs. RHE. This is the highest reported performance to date. Integration with a polycrystalline Si PV cell leads to bias-free water splitting with a stable photocurrent of 208 mA for 6 h and 2.2% solar-to-hydrogen efficiency. Our findings highlight the importance of photoelectrode design towards scalable PEC device development.},
  year = {2024},
  journal = {ChemSusChem},
  volume = {16},
  pages = {e202300969},
  month = {01/2024},
  doi = {10.1002/cssc.202300969},
  language = {eng},
}