A two-anode reduction technique to monitor the defect and dope the surface of TiO2 nanotube array as photo-anode for water splitting

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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date

2019-12-05

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Department of Applied Physics
Department of Chemical and Metallurgical Engineering

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Language

en

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Applied Catalysis B: Environmental, Volume 258

Abstract

A two-anode reduction (TAR) technique is adopted to prepare, in one step without the existence of gaseous hydrogen, black TiO2 nanotubes co-doped with carbon and nitrogen. A sample prepared with the TAR technique for 2 min achieved the highest photocurrent response as 2.05 mA/cm2, which is 3 times as high as that of the pristine TiO2 nanotubes. A synergistic effect between black hydrogenation and C, N co-doping is observed. The light absorption in the whole ultraviolet-visible (UV–vis) range is also greatly enhanced.

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Keywords

Anodic oxidation, Black TiO nanotubes, C and N co-doping TiO nanotubes, Photoelectrochemial water splitting, Two-anode reduction

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DOI

10.1016/j.apcatb.2019.117949

Citation

Hou, X, Jiang, S & Li, Y 2019, 'A two-anode reduction technique to monitor the defect and dope the surface of TiO 2 nanotube array as photo-anode for water splitting', Applied Catalysis B: Environmental, vol. 258, 117949. https://doi.org/10.1016/j.apcatb.2019.117949

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https://urn.fi/URN:NBN:fi:aalto-201908154805

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[article-cris] Kemian tekniikan korkeakoulu / CHEM