Halogen-doped SnO2 for hydrogen production: A theoretical and experimental investigation

Author:

Filippatos Petros-Panagis12ORCID,Soultati Anastasia1ORCID,Kelaidis Nikolaos3,Coutsolelos Athanassios G.4,Davazoglou Dimitris1,Vasilopoulou Maria1,Chroneos Alexander56ORCID

Affiliation:

1. National Center for Scientific Research Demokritos, Institute of Nanoscience and Nanotechnology (INN), 15310 Agia Paraskevi, Athens, Greece

2. Faculty of Engineering, Environment and Computing, Coventry University, Priory Street, Coventry CV1 5FB, UK

3. Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation, Vass Constantinou 48, GR-11635 Athens, Greece

4. Department of Chemistry, University of Crete, Laboratory of Bioinorganic Chemistry, Voutes Campus, P. O. Box 2208, Heraklion 71003, Crete, Greece

5. Department of Electrical and Computer Engineering, University of Thessaly, 38221 Volos, Greece

6. Department of Materials, Imperial College, London SW7 2AZ, UK

Abstract

Halogen-doped tin dioxide (SnO2) is examined for its photocatalytic activity and further applications apart from the photovoltaic devices. While SnO2 has been extensively examined in energy devices, not so much attention has been paid to its investigation as a photocatalyst. Preliminary studies on photocatalytic properties suggest that Br:SnO2 shows a small improvement in hydrogen production in the first 14 h, whereas, in general, the presence of any halogen reduces the reactivity of SnO2. By incorporating this result with the observed increase in conductance, it can be suggested that the doping of Cl and Br serves as an effective method for enhancing the electron-transport properties of SnO2 layers.

Publisher

World Scientific Pub Co Pte Ltd

Subject

Condensed Matter Physics,Statistical and Nonlinear Physics

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