Near infrared-driven photoelectrochemical water splitting: Review and future prospects

Ping Yen Hsieh, Jhen Yang Wu, Tso Fu Mark Chang*, Chun Yi Chen, Masato Sone, Yung-Jung Hsu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

Photoelectrochemical (PEC) water splitting supplies an environmentally friendly, sustainable approach to generating renewable hydrogen fuels. Oxides semiconductors, e.g. TiO2, BiVO4, and Fe2O3, have been widely developed as photoelectrodes to demonstrate the utility in PEC systems. Even though significant effort has been made to increase the PEC efficiency, these materials are still far from practical applications. The main issue of metal oxides is the wide bandgap energy that hinders effective photons harvesting from sunlight. In solar spectrum, over 40% of the energy is located in the near-infrared (NIR) region. Developing sophisticated PEC systems that can be driven by NIR illumination is therefore essential. This review gives a concise overview on PEC systems based on the use of NIR-driven photoelectrodes. Promising candidates as efficient yet practical NIR-responsive photoelectrodes are suggested and discussed. Future outlooks on the advancement of PEC water splitting are also proposed.

Original languageEnglish
Pages (from-to)8372-8387
Number of pages16
JournalArabian Journal of Chemistry
Volume13
Issue number11
DOIs
StatePublished - Nov 2020

Keywords

  • Near infrared-driven
  • PEC water splitting
  • Solar hydrogen production

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