Transparent α-Fe2O3/TiO2 nanotubular photoanodes

被引：4
|
作者：
Zlamal, Martin [1 ]
Pausova, Sarka [1 ]
Kment, Stepan [2 ]
Hubicka, Zdenek [2 ]
Krysa, Josef [1 ]
机构：
[1] Univ Chem & Technol, Dept Inorgan Technol, Tech 5, Prague 16628, Czech Republic
[2] Palacky Univ, RCPTM, Joint Lab Opt, 17 Listopadu 12, Olomouc 77146, Czech Republic
来源：
CATALYSIS TODAY | 2017年 / 287卷
关键词：
TiO2; Hematite; Nanotubes; Transparent layer; Anodization; Plasmatic deposition; HEMATITE THIN-FILMS; PHOTOELECTROCHEMICAL PERFORMANCE; TIO2; NANOTUBES; ARRAYS; OXIDATION; RUTILE; SI;
D O I：
10.1016/j.cattod.2016.10.019
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
This paper describes the formation and characterization of transparent mixed alpha-Fe2O3/TiO2 nanotubular layers. Mixed metal oxide nanostructured layers were prepared by two steps. At first, Fe-Ti alloy layer was prepared by a high-powered impulse magnetron sputtering (HiPIMS) deposition on fluorine doped tin oxide (FTO) glass substrate and then electrochemically oxidized in fluoride containing electrolyte. Prepared alloy layers and anodized layers were characterized by SEM/EDS, mu XRD, UV-vis spectroscopy. Anodized layers consist of hematite nanotubes with the length around 1400 nm and expansion factor close to 2.5. Titanium is present as amorphous TiO2. Photoelectrochemical properties of transparent mixed alpha-Fe2O3/TiO2 layer in aqueous electrolyte were evaluated. Presence of Ti in the Fe-Ti alloy results in a significant increase in photoresponse. (C) 2016 Elsevier B.V. All rights reserved.
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页码：137 / 141
页数：5
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