Grigorescu SG, So S, Yoo JE, Mazare AV, Hahn R, Schmuki P (2015)
Publication Type: Journal article
Publication year: 2015
Book Volume: 182
Pages Range: 803-808
DOI: 10.1016/j.electacta.2015.09.159
In the present work we grow self-organized Ta2O5 nanotube layers in a H2SO4/NH4F electrolyte at various elevated temperatures. Under optimized conditions we obtain 4 \textgreekmm long nanotubes that are well adherent to the substrate and can be grown very homogenous over large surface areas. Moreover, the key advantage of this approach is that an open top morphology (initiation layer free) is obtained. After a suitable conversion treatment in NH3 atmosphere Ta3N5 nanotubes are obtained, that after (Co-Pi+Co(OH)x) modification provide, under AM 1.5G illumination conditions, a photoelectrochemical current response of 4.7 mA cm$-$2 at +1.23 V vs RHE.
APA:
Grigorescu, S.G., So, S., Yoo, J.E., Mazare, A.V., Hahn, R., & Schmuki, P. (2015). Open top anodic Ta3N5 nanotubes for higher solar water splitting efficiency. Electrochimica Acta, 182, 803-808. https://dx.doi.org/10.1016/j.electacta.2015.09.159
MLA:
Grigorescu, Sabina Georgiana, et al. "Open top anodic Ta3N5 nanotubes for higher solar water splitting efficiency." Electrochimica Acta 182 (2015): 803-808.
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