The fast reaction of forced hydrolysis of iron(III) nitrate in hypochlorite solution at room temperature, leads to the formation of mainly hematite, α-Fe2O3. Successive ion adsorption and reaction (SILAR) is applied to decorate an electrochemically formed TiO2 nanotube electrode. The anodic photoelectrochemical behavior of pure TiO2-NT’s and modified electrodes are investigated in a sulfate containing solution at pH = 9.2. It is shown that such a modification leads to an increase of anodic photoactivity, as well as that at the same current density, the photoelectrochemical cell with a modified electrode operates at a voltage lower by 0.7 V. The band gap and flat band potentials are estimated, and the structure of the band gap and possible charge transfer reactions and mechanism are discussed.
Keywords:
Hematite / Forced hydrolysis / Photoelectrochemical cell / Band gap / Flat band potential
TY - JOUR
AU - Omymen, Waleed M.
AU - Ebshish, Ali S.
AU - Jugović, Branimir
AU - Trišović, Tomislav
AU - Gvozdenović, Milica M.
AU - Grgur, Branimir
PY - 2016
UR - http://dais.sanu.ac.rs/123456789/15997
AB - The fast reaction of forced hydrolysis of iron(III) nitrate in hypochlorite solution at room temperature, leads to the formation of mainly hematite, α-Fe2O3. Successive ion adsorption and reaction (SILAR) is applied to decorate an electrochemically formed TiO2 nanotube electrode. The anodic photoelectrochemical behavior of pure TiO2-NT’s and modified electrodes are investigated in a sulfate containing solution at pH = 9.2. It is shown that such a modification leads to an increase of anodic photoactivity, as well as that at the same current density, the photoelectrochemical cell with a modified electrode operates at a voltage lower by 0.7 V. The band gap and flat band potentials are estimated, and the structure of the band gap and possible charge transfer reactions and mechanism are discussed.
PB - Elsevier
T2 - Electrochimica Acta
T1 - Photoelectochemical behavior of TiO2-NT’s modified with SILAR deposited iron oxide
SP - 136
EP - 143
VL - 203
DO - 10.1016/j.electacta.2016.04.038
ER -
@article{
author = "Omymen, Waleed M. and Ebshish, Ali S. and Jugović, Branimir and Trišović, Tomislav and Gvozdenović, Milica M. and Grgur, Branimir",
year = "2016",
url = "http://dais.sanu.ac.rs/123456789/15997",
abstract = "The fast reaction of forced hydrolysis of iron(III) nitrate in hypochlorite solution at room temperature, leads to the formation of mainly hematite, α-Fe2O3. Successive ion adsorption and reaction (SILAR) is applied to decorate an electrochemically formed TiO2 nanotube electrode. The anodic photoelectrochemical behavior of pure TiO2-NT’s and modified electrodes are investigated in a sulfate containing solution at pH = 9.2. It is shown that such a modification leads to an increase of anodic photoactivity, as well as that at the same current density, the photoelectrochemical cell with a modified electrode operates at a voltage lower by 0.7 V. The band gap and flat band potentials are estimated, and the structure of the band gap and possible charge transfer reactions and mechanism are discussed.",
publisher = "Elsevier",
journal = "Electrochimica Acta",
title = "Photoelectochemical behavior of TiO2-NT’s modified with SILAR deposited iron oxide",
pages = "136-143",
volume = "203",
doi = "10.1016/j.electacta.2016.04.038"
}
Omymen WM, Ebshish AS, Jugović B, Trišović T, Gvozdenović MM, Grgur B. Photoelectochemical behavior of TiO2-NT’s modified with SILAR deposited iron oxide. Electrochimica Acta. 2016;203:136-143
Omymen, W. M., Ebshish, A. S., Jugović, B., Trišović, T., Gvozdenović, M. M.,& Grgur, B. (2016). Photoelectochemical behavior of TiO2-NT’s modified with SILAR deposited iron oxide.
Electrochimica ActaElsevier., 203, 136-143.
https://doi.org/10.1016/j.electacta.2016.04.038
Omymen Waleed M., Ebshish Ali S., Jugović Branimir, Trišović Tomislav, Gvozdenović Milica M., Grgur Branimir, "Photoelectochemical behavior of TiO2-NT’s modified with SILAR deposited iron oxide" 203 (2016):136-143,
https://doi.org/10.1016/j.electacta.2016.04.038 .
