Work

Strategies for stable water splitting via protected photoelectrodes

Year: 2017

Type: review

Abstract: . However, major challenges still have to be overcome before commercialization can be achieved. One of the largest barriers to overcome is to achieve a stable PEC reaction in either strongly basic or acidic electrolytes without degradation of the semiconductor photoelectrodes. In this work, we discuss fundamental aspects of protection strategies for achieving stable solid/liquid interfaces. We then analyse the charge transfer mechanism through the protection layers for both photoanodes and photocathodes. In addition, we review protection layer approaches and their stabilities for a wide variety of experimental photoelectrodes for water reduction. Finally, we discuss key aspects which should be addressed in continued work on realizing stable and practical PEC solar water splitting systems.

Source: Chemical Society Reviews

DOI: 10.1039/c6cs00918b

Authors: Dowon Bae, Brian Seger, Peter C. K. Vesborg, Ole Hansen, Ib Chorkendorff

Institution: Technical University of Denmark

Language: English

Topic: Advanced Photocatalysis Techniques

Subfield: Renewable Energy, Sustainability and the Environment

Field: Energy

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: bronze

Funder: Villum Fonden