Photoelectochemical behavior of TiO2-NT's modified with SILAR deposited iron oxide
Authorized Users Only
2016
Authors
Omymen, Waleed M.Ebshish, Ali S.
Jugović, Branimir
Trišović, Tomislav
Gvozdenović, Milica
Grgur, Branimir
Article (Published version)
Metadata
Show full item recordAbstract
The fast reaction of forced hydrolysis of iron(111) nitrate in hypochlorite solution at room temperature, leads to the formation of mainly hematite, alpha-Fe203. Successive ion adsorption and reaction (SILAR) is applied to decorate an electrochemically formed TiO2 nanotube electrode. The anodic photo electrochemical 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:
- Pergamon-Elsevier Science Ltd, Oxford
Funding / projects:
- Electrochemical synthesis and characterization of nanostructured functional materials for application in new technologies (RS-MESTD-Basic Research (BR or ON)-172046)
DOI: 10.1016/j.electacta.2016.04.038
ISSN: 0013-4686
WoS: 000376133200016
Scopus: 2-s2.0-84963606979
Institution/Community
Tehnološko-metalurški fakultetTY - JOUR AU - Omymen, Waleed M. AU - Ebshish, Ali S. AU - Jugović, Branimir AU - Trišović, Tomislav AU - Gvozdenović, Milica AU - Grgur, Branimir PY - 2016 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3257 AB - The fast reaction of forced hydrolysis of iron(111) nitrate in hypochlorite solution at room temperature, leads to the formation of mainly hematite, alpha-Fe203. Successive ion adsorption and reaction (SILAR) is applied to decorate an electrochemically formed TiO2 nanotube electrode. The anodic photo electrochemical 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 - Pergamon-Elsevier Science Ltd, Oxford T2 - Electrochimica Acta T1 - Photoelectochemical behavior of TiO2-NT's modified with SILAR deposited iron oxide EP - 143 SP - 136 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 and Grgur, Branimir", year = "2016", abstract = "The fast reaction of forced hydrolysis of iron(111) nitrate in hypochlorite solution at room temperature, leads to the formation of mainly hematite, alpha-Fe203. Successive ion adsorption and reaction (SILAR) is applied to decorate an electrochemically formed TiO2 nanotube electrode. The anodic photo electrochemical 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 = "Pergamon-Elsevier Science Ltd, Oxford", journal = "Electrochimica Acta", title = "Photoelectochemical behavior of TiO2-NT's modified with SILAR deposited iron oxide", pages = "143-136", volume = "203", doi = "10.1016/j.electacta.2016.04.038" }
Omymen, W. M., Ebshish, A. S., Jugović, B., Trišović, T., Gvozdenović, M.,& Grgur, B.. (2016). Photoelectochemical behavior of TiO2-NT's modified with SILAR deposited iron oxide. in Electrochimica Acta Pergamon-Elsevier Science Ltd, Oxford., 203, 136-143. https://doi.org/10.1016/j.electacta.2016.04.038
Omymen WM, Ebshish AS, Jugović B, Trišović T, Gvozdenović M, 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 .
Omymen, Waleed M., Ebshish, Ali S., Jugović, Branimir, Trišović, Tomislav, Gvozdenović, Milica, 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 . .