Open top anodic Ta3N5 nanotubes for higher solar water splitting efficiency

Grigorescu SG, So S, Yoo JE, Mazare AV, Hahn R, Schmuki P (2015)


Publication Type: Journal article

Publication year: 2015

Journal

Book Volume: 182

Pages Range: 803-808

DOI: 10.1016/j.electacta.2015.09.159

Abstract

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.

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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://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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