Szczegóły publikacji
Opis bibliograficzny
$TiO_{2}/SnO_{2}$ nanotubes for hydrogen generation by photoelectrochemical water splitting / M. RADECKA, A. WNUK, A. TRENCZEK-ZAJĄC, K. SCHNEIDER, K. ZAKRZEWSKA // International Journal of Hydrogen Energy ; ISSN 0360-3199. — 2015 — vol. 40 iss. 1, s. 841–851. — Bibliogr. s. 850–851, Abstr.
Autorzy (5)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 86634 |
|---|---|
| Data dodania do BaDAP | 2015-01-08 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.ijhydene.2014.09.154 |
| Rok publikacji | 2015 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | International Journal of Hydrogen Energy |
Abstract
TiO2/SnO2 nanotubes were successfully grown via electrochemical anodization of Ti-Sn 1 μm-thick films deposited onto titanium foil by means of rf sputtering. Two different viscous electrolytes, containing 1 wt% NH4F, were used: ethylene glycol (EG electrolyte), and glycerol + ethylene glycol (GL/EG electrolyte). Self-organized nanotubes prepared in the EG electrolyte exhibited very smooth walls, smaller diameter and were much longer than those obtained in GL/EG. XRD analysis revealed the mixture of anatase with smaller amount of rutile TiO2, however, in the case of EG electrolyte additional phases from the Sn-O system were observed. Contact angle measurements indicated that all the samples were hydrophobic as-prepared and transformed into superhydrophilic upon illumination. Solar-to-hydrogen efficiency was improved by incorporation of Sn up to about 2% which could be attributed to higher photocurrent density reaching 0.2 μA cm-2, longer recombination time 5-15 s and more negative flat band potential VFB = -0.5; -0.6 V. © 2014 Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.