Copper oxide-based photocatalysts and photocathodes: Fundamentals and recent advances

Thumbnail Image
Journal Title
Journal ISSN
Volume Title
A2 Katsausartikkeli tieteellisessä aikakauslehdessä
Degree programme
Molecules, Volume 26, issue 23
This work aims at reviewing the most impactful results obtained on the development of Cu-based photocathodes. The need of a sustainable exploitation of renewable energy sources and the parallel request of reducing pollutant emissions in airborne streams and in waters call for new technologies based on the use of efficient, abundant, low-toxicity and low-cost materials. Photoelectrochemical devices that adopts abundant element-based photoelectrodes might respond to these requests being an enabling technology for the direct use of sunlight to the production of energy fuels form water electrolysis (H2) and CO2 reduction (to alcohols, light hydrocarbons), as well as for the degradation of pollutants. This review analyses the physical chemical properties of Cu2O (and CuO) and the possible strategies to tune them (doping, lattice strain). Combining Cu with other elements in multinary oxides or in composite photoelectrodes is also discussed in detail. Finally, a short overview on the possible applications of these materials is presented.
Funding Information: This research was funded by the Jane and Aatos Erkko Foundation, grant: ?Renewable energy storage to high value chemicals?; the Italian Ministry of University, grant number Prot. 2017YH9MRK; the Universit? degli Studi di Milano, grant number PSR 2020. Publisher Copyright: © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
CO2 reduction reaction, Cu2O, CuO, Hydrogen evolution reaction, Photocatalysis, Photoelectrochemistry, Water splitting
Other note
Baran , T , Visibile , A , Busch , M , He , X , Wojtyla , S , Rondinini , S , Minguzzi , A & Vertova , A 2021 , ' Copper oxide-based photocatalysts and photocathodes: Fundamentals and recent advances ' , Molecules , vol. 26 , no. 23 , 7271 .