This work is intended to define an optimal methodology of preparation of highly ordered TiO2 nanotube arrays by a 60 V anodization in a glycol ethylene solution. The effect of the presence of an initial superficial oxide on the sample, before operating the anodization growth, has been analysed. The best result has been obtained by a galvanostatic oxide growth on the titanium sheet, before the anodization process. The photoconversion efficiency was measured and we have obtained a maximum value of 12.97%, strictly in line with the literature. We have also underlined the necessity to operate a heat treatment using only dry atmosphere.
Effect of a galvanostatic treatment on the preparation of highly ordered TiO2 nanotubes / Pasquali, Mauro; Mura, Francesco; Pozio, A; Masci, A.. - In: ELECTROCHIMICA ACTA. - ISSN 0013-4686. - STAMPA. - 54:(2009), pp. 3794-3798. [10.1016/j.electacta.2009.01.073]
Effect of a galvanostatic treatment on the preparation of highly ordered TiO2 nanotubes
PASQUALI, Mauro;MURA, FRANCESCO;
2009
Abstract
This work is intended to define an optimal methodology of preparation of highly ordered TiO2 nanotube arrays by a 60 V anodization in a glycol ethylene solution. The effect of the presence of an initial superficial oxide on the sample, before operating the anodization growth, has been analysed. The best result has been obtained by a galvanostatic oxide growth on the titanium sheet, before the anodization process. The photoconversion efficiency was measured and we have obtained a maximum value of 12.97%, strictly in line with the literature. We have also underlined the necessity to operate a heat treatment using only dry atmosphere.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
