Photoelectochemical behavior of TiO2-NT’s modified with SILAR deposited iron oxide
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2016
Authors
Omymen, Waleed M.Ebshish, Ali S.
Jugović, Branimir

Trišović, Tomislav

Gvozdenović, Milica M.

Grgur, Branimir

Article (Published version)

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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 potentialSource:
Electrochimica Acta, 2016, 203, 136-143Publisher:
- Elsevier
Funding / projects:
DOI: 10.1016/j.electacta.2016.04.038
ISSN: 0013-4686
WoS: 000376133200016
Scopus: 2-s2.0-84963606979
Institution/Community
Институт техничких наука САНУ / Institute of Technical Sciences of SASATY - 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 - https://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 UR - https://hdl.handle.net/21.15107/rcub_dais_15997 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", 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", url = "https://hdl.handle.net/21.15107/rcub_dais_15997" }
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. in Electrochimica Acta Elsevier., 203, 136-143. https://doi.org/10.1016/j.electacta.2016.04.038 https://hdl.handle.net/21.15107/rcub_dais_15997
Omymen WM, Ebshish AS, Jugović B, Trišović T, Gvozdenović MM, Grgur B. Photoelectochemical behavior of TiO2-NT’s modified with SILAR deposited iron oxide. in Electrochimica Acta. 2016;203:136-143. doi:10.1016/j.electacta.2016.04.038 https://hdl.handle.net/21.15107/rcub_dais_15997 .
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" in Electrochimica Acta, 203 (2016):136-143, https://doi.org/10.1016/j.electacta.2016.04.038 ., https://hdl.handle.net/21.15107/rcub_dais_15997 .