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arXiv · 1610.04153

Aminated TiO2 nanotube as a Photoelectrochemical Water Splitting photoanode

Seyedsina Hejazi·Nhat Truong Nguyen·Anca Mazare·Patrik Schmuki
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Abstract

The present work reports on the enhancement of TiO2 nanotubes photoelectrochemical water splitting rate by decorating the nanostructure with an amine layer in a hydrothermal process using diethylenetriamine (DETA). The aminate coated TiO2 tubes show a stable improvement of the photoresponse in both UV and visible light spectrum and under hydrothermal conditions, 4-fold increase of the photoelectrochemical water splitting rate is observed. From intensity modulated photocurrent spectroscopy (IMPS) measurements significantly faster electron transport times are observed indicating a surface passivating effect of the N-decoration.

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Seyedsina Hejazi, Nhat Truong Nguyen, Anca Mazare, Patrik Schmuki. 2016-10-13. Aminated TiO2 nanotube as a Photoelectrochemical Water Splitting photoanode. https://doi.org/10.1016/j.cattod.2016.07.009

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