Photoanode for solar water oxidation based on titania and hematite films

被引：3
|
作者：
Sima, M. [1 ]
Vasile, E. [2 ]
Sima, A. [3 ]
机构：
[1] Natl Inst Mat Phys, Atomistilor St 405A, Magurele 077125, Romania
[2] Univ Politehn Bucuresti, Fac Appl Chem & Mat Sci, Dept Oxide Mat & Nanomat, 1-7 Gh Polizu St, Bucharest 011061, Romania
[3] Natl Inst Lasers Plasma & Radiat Phys, 409 Atomistilor St,POB MG, Magurele 36077125, Romania
来源：
THIN SOLID FILMS | 2018年 / 658卷
关键词：
TiO2/Fe2O3; Photoanode; Water splitting; ALPHA-FE2O3; TIO2; PHOTOOXIDATION; RECOMBINATION; IRON;
D O I：
10.1016/j.tsf.2018.05.019
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Nanostructured hematite (alpha-Fe2O3) film deposited on mesoporous titania (TiO2) underlayer was described as a photoanode for photoelectrochemical water splitting. Mesoporous TiO2 layers were prepared by spin coating a paste on conductive fluorine-doped tin oxide glass followed by an annealing process. Hematite film was prepared after electrochemical and annealing processes. The TiO2/Fe2O3 photoanodes achieve photocurrent densities up to 0.5 mA/cm(2) at 1.23 V versus reversible hydrogen electrode. This value is greater than that for photocurrent density obtained with pristine hematite photoanode. Impedance measurements showed that prepared heterostructure TiO2/Fe2O3 contributes to diminution of electron-hole recombination process.
引用
收藏
页码：7 / 11
页数：5
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