Issue 16, 2017

Insertion of nanostructured titanates into the pores of an anodised TiO2 nanotube array by mechanically stimulated electrophoretic deposition

Abstract

TiO2 nanotube (TiO2NT) surfaces can achieve a high area surface and enhanced electrocatalytic properties. One of the key challenges is the insertion of nanostructured titanates deeply into the pores of TiO2NT. We describe the electrophoretic deposition (EPD) of two different titanates - nanosheets (TiNSs) and nanotubes (TiNTs) into the pores of TiO2NT to produce controlled hierarchical surfaces. A sufficiently high applied cell potential and mechanical stimulation of the surface are important to incorporate TiNSs and TiNTs inside the pores of TiO2NTs. The electrodes show improved hydrophobicity after deposition of titanates. The beneficial effect of a counter electrode equipped with a brush to avoid the accumulation of a thick outer layer on TiO2NTs is highlighted.

Graphical abstract: Insertion of nanostructured titanates into the pores of an anodised TiO2 nanotube array by mechanically stimulated electrophoretic deposition

Supplementary files

Article information

Article type
Paper
Submitted
06 Febr. 2017
Accepted
20 Marts 2017
First published
21 Marts 2017

J. Mater. Chem. C, 2017,5, 3955-3961

Insertion of nanostructured titanates into the pores of an anodised TiO2 nanotube array by mechanically stimulated electrophoretic deposition

A. S. Martins, C. Harito, D. V. Bavykin, F. C. Walsh and M. R. V. Lanza, J. Mater. Chem. C, 2017, 5, 3955 DOI: 10.1039/C7TC00575J

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