Optimizing TiO2 nanotube morphology for enhanced photocatalytic H2 evolution using single-walled and highly ordered TiO2 nanotubes decorated with dewetted Au …
Electrochemistry Communications, 2017•Elsevier
In the present work we introduce the formation of highly ordered single-walled TiO 2
nanotubes based on anodizing nanoimprinted titanium substrates. In a first step, anodization
on nanoimprinted substrates leads to the formation of highly ordered TiO 2 nanotubes.
These as-formed TiO 2 nanotubes have a double-walled nature. After an optimized chemical
treatment in piranha solution, the inner wall is removed and an array of single-walled TiO 2
nanotubes is obtained that has a high degree of hexagonal ordering. These single walled …
nanotubes based on anodizing nanoimprinted titanium substrates. In a first step, anodization
on nanoimprinted substrates leads to the formation of highly ordered TiO 2 nanotubes.
These as-formed TiO 2 nanotubes have a double-walled nature. After an optimized chemical
treatment in piranha solution, the inner wall is removed and an array of single-walled TiO 2
nanotubes is obtained that has a high degree of hexagonal ordering. These single walled …
Abstract
In the present work we introduce the formation of highly ordered single-walled TiO2 nanotubes based on anodizing nanoimprinted titanium substrates. In a first step, anodization on nanoimprinted substrates leads to the formation of highly ordered TiO2 nanotubes. These as-formed TiO2 nanotubes have a double-walled nature. After an optimized chemical treatment in piranha solution, the inner wall is removed and an array of single-walled TiO2 nanotubes is obtained that has a high degree of hexagonal ordering. These single walled arrangements show an enhanced photocatalytic activity for H2 evolution in comparison with classic self-ordered TiO2 nanotubes.
Elsevier