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Enhancement of photoelectrochemical activity for water splitting by controlling hydrodynamic conditions on titanium anodization
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Enhancement of photoelectrochemical activity for water splitting by controlling hydrodynamic conditions on titanium anodization
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| Sánchez Tovar, Rita; Fernández Domene, Ramón Manuel; García-García, D.M.; Garcia-Anton, Jose | |||
| Aquest document és un/a article, creat/da en: 2015 | |||
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| This work studies the electrochemical and photoelectrochemical properties of a new type of TiO2 nanostructure (nanosponge) obtained by means of anodization in a glycerol/water/NH4F electrolyte under controlled hydrodynamic conditions. For this purpose different techniques such as Scanning Electronic Microscopy (SEM), Raman Spectroscopy, Electrochemical Impedance Spectroscopy (EIS) measurements, Mott-Schottky (M−S) analysis and photoelectrochemical water splitting tests under standard AM 1.5 conditions are carried out. The obtained results show that electron-hole separation is facilitated in the TiO2 nanosponge if compared with highly ordered TiO2 nanotube arrays. As a result, nanosponges enhance the photoelectrochemical activity for water splitting. | |||
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