Towards spectroscopic monitoring of photoelectrodes: In-situ Raman photoelectrochemistry of a TiO2/prussian blue photoanode - Publication - Bridge of Knowledge

Your account

login

Search

Towards spectroscopic monitoring of photoelectrodes: In-situ Raman photoelectrochemistry of a TiO2/prussian blue photoanode

Abstract

Here, novel in-situ Raman photoelectrochemical measurements are performed. The obtained results have proved that it is possible to track the progress of a photoelectrochemical reaction that takes place on a semiconducting electrode using the spectroscopic method. As an exemplary system, the Ti/TiO2/Prussian blue electrode is investigated. Since TiO2 is an n-type semiconductor, it cannot act as an efficient anode in dark conditions. Thus, once electrochemically reduced Prussian blue deposited on TiO2 is not reoxi- dized during anodic polarization. However, Everitt’s salt oxidation may be possible when photoexcitation of TiO2 with UV LED radiation takes place at a potential which is more anodic than the flat band poten- tial of the semiconductor. This process is successfully monitored in-situ using Raman spectroscopy. The measurements performed at different conditions allow to distinguish between processes induced by po- larization and illumination (or both). The proposed method of photoelectrode characterization through a real-time monitoring approach can be further developed and utilized for other photoelectrochemical systems.

Citations

  • 4

    CrossRef

  • 0

    Web of Science

  • 4

    Scopus

Authors (5)

Cite as

Full text

full text is not available in portal

Keywords

Details

Category:
Articles
Type:
artykuły w czasopismach
Published in:
ELECTROCHIMICA ACTA no. 404,
ISSN: 0013-4686
Language:
English
Publication year:
2022
Bibliographic description:
Trzciński K., Szkoda M., Zarach Z., Sawczak M., Nowak A.: Towards spectroscopic monitoring of photoelectrodes: In-situ Raman photoelectrochemistry of a TiO2/prussian blue photoanode// ELECTROCHIMICA ACTA -Vol. 404, (2022), s.139774-
DOI:
Digital Object Identifier (open in new tab) 10.1016/j.electacta.2021.139774
Sources of funding:
  • Free publication
Verified by:
Gdańsk University of Technology

seen 134 times

Recommended for you

The influence of polarization of titania nanotubes modified by a hybrid system made of a conducting polymer PEDOT and Prussian Blue redox network on the Raman spectroscopy response and photoelectrochemical properties

2018

Electrodes consisting of PEDOT modified by Prussian Blue analogues deposited onto titania nanotubes – Their highly improved capacitance

2017

Synthesis and photoelectrochemical behaviour of hydrogenated titania nanotubes modified with conducting polymer infiltrated by redox active network

2016

Scaling Up the Process of Titanium Dioxide Nanotube Synthesis and Its Effect on Photoelectrochemical Properties

2021
Meta Tags