The effect of electrolyte re-utilization in the growth rate and morphology of TiO nanotubes

• Type: Article in International Scientific Journal
• Date: 2016

Authors

José D. Costa (Author) Other; Paula Quitério (Author) Other; Arlete Apolinário (Author) FEUP; Célia T. Sousa (Author) Other; João Azevedo (Author) FEUP; João Ventura (Author) Other; Luísa Andrade (Author) FEUP; Adélio Mendes (Author) FEUP; João P. Araújo (Author) Other

Journal

Title: Materials Letters

Vol. 171

Pages: 224-227

ISSN: 0167-577X

Publisher: Elsevier

Indexing

ISI Web of Knowledge

ISI Web of Science

Scopus

INSPEC

Scientific classification

CORDIS: Technological sciences

Associated Projects

H2Solar - Células fotoelectroquímicas para produção de hidrogénio a partir de energia solar

PECDEMO - Photoelectrochemical Demonstrator Device for Solar Hydrogen Generation

Other information

DOI: 10.1016/j.matlet.2016.02.085

Abstract (EN): In an industrial context, the re-utilization of resources is very important to monetize processes, reducing the production costs without overlooking a proper performance of the devices. For specific applications such as dye-sensitized solar cells (DSC), a high-aspect-ratio configuration of the produced TiO2 nanotubes (NTs) is essential to achieve higher conversion efficiencies. In this work, we report the effect of electrolyte re-utilization in the diameter, length and morphology of TiO2 nanotubes (NTs) produced by electrochemical anodization. A detailed study of the bias voltage effect on the anodic NTs for new and reutilized electrolytes was performed. Also, the possibility of obtaining NT arrays with ribs morphology just by re-using the electrolyte was unveiled.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 4