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Chemija / Chemistry

ISSN 0235-7216
ISSN 2424-4538 (online)

2017 m. Nr. 2

Photoelectrochemical behaviour of WO3 and Se-WO3 films modified with cobalt-based oxygen evolving catalyst
Simona OSTACHAVIČIŪTĖ, Agnė ŠULČIŪTĖ, Eugenijus VALATKA

Thin films of bare and Se-containing tungsten trioxide (WO3) on AISI304 stainless steel were prepared by electrochemical deposition using peroxy-tungstate solutions. Cobaltphosphate catalyst was photochemically deposited onto the surface of semiconductor particles in order to enhance their activity towards the oxygen evolution reaction. The photoelectrochemical properties of as-prepared electrodes were investigated in neutral 0.1 M phosphate buffer solutions. The voltammetric characteristics revealed that the presence of cobalt-based catalyst effectively changes the photoelectrocatalytic activity of WO3 and Se-WO3 particles.

Keywords: tungsten trioxide (WO3), mixed tungsten trioxide–selenium film, oxygen evolution catalyst, electrodeposition, stainless steel

Issues:

2017 - Vol.28
No. 1, No. 2, No. 3

2016 - Vol.27
No. 1, No. 2, No. 3, No. 4

2015 - Vol.26
No. 1, No. 2, No. 3, No. 4

2014 - Vol.25
No. 1, No. 2, No. 3, No. 4

2013 - Vol.24
No. 1, No. 2, No. 3, No. 4

2012 - Vol.23
No. 1, No. 2, No. 3, No. 4

2011 - Vol.22
No. 1, No. 2, No. 3, No. 4

2010 - Vol.21
No. 1, No. 2-4

2009 - Vol.20
No. 1, No. 2, No. 3, No. 4

2008 - Vol.19
No. 1, No. 2, No. 3-4

2007 - Vol.18
No. 1, No. 2, No. 3, No. 4

2006 - Vol.17
No. 1, No. 2-3, No. 4

2005 - Vol.16
No. 1, No. 2, No. 3-4

2004 - Vol.15
No. 1, No. 2, No. 3, No. 4

2003 - Vol.14
No. 1, No. 2, No. 3, No. 4

2002 - Vol.13
No. 1, No. 2, No. 3, No. 4

2001 - Vol.12
No. 1, No. 2, No. 3, No. 4