Durability Testing of Photoelectrochemical Hydrogen Production under Day/Night Light Cycled Conditions

Journal Article (2019)
Author(s)

Dowon Bae (TU Delft - ChemE/Materials for Energy Conversion and Storage, Technical University of Denmark (DTU))

Brian Seger (Technical University of Denmark (DTU))

Ole Hansen (Technical University of Denmark (DTU))

Peter C.K. Vesborg (Technical University of Denmark (DTU))

Ib Chorkendorff (Technical University of Denmark (DTU))

Research Group
ChemE/Materials for Energy Conversion and Storage
Copyright
© 2019 D. Bae, Brian Seger, Ole Hansen, Peter C.K. Vesborg, Ib Chorkendorff
DOI related publication
https://doi.org/10.1002/celc.201800918
More Info
expand_more
Publication Year
2019
Language
English
Copyright
© 2019 D. Bae, Brian Seger, Ole Hansen, Peter C.K. Vesborg, Ib Chorkendorff
Research Group
ChemE/Materials for Energy Conversion and Storage
Issue number
1
Volume number
6
Pages (from-to)
106-109
Reuse Rights

Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.

Abstract

This work investigates long-term photoelectrochemical hydrogen evolution (82 days) in 1 M HClO4 using a TiO2:H protected crystalline Si-based photocathode with metal-oxide-semiconductor (MOS) junctions. It is shown that day/night cycling leads to relatively rapid performance degradation while the photocurrent under the continuous light condition is relatively stable. We observed that the performance loss is mainly due to contamination of the catalytically active surface with carbonaceous material. By ultraviolet (UV) light exposure, we also observed that the activity can be restored, most likely due to photocatalytic degradation of organic compounds by the UV light excited TiO2 protection layer.

Files

Bae_et_al_2018_ChemElectroChem... (pdf)
(pdf | 1.51 Mb)
- Embargo expired in 25-08-2019
License info not available