Hydrogen Sensing Properties of Dye-Sensitized TiO2 Nanotube Array

Autor: Liang Huang, Yun Han Ling, Yu Qing Zhuo, Fu Jian Ren
Rok vydání: 2011
Předmět:
Zdroj: Key Engineering Materials. 492:296-299
ISSN: 1662-9795
DOI: 10.4028/www.scientific.net/kem.492.296
Popis: A dye-sensitized TiO2 nanotube array (DST) was fabricated by electrochemical anodization in an aqueous organic electrolyte and immersed into ethanol containing N719 dye. The crystal phase and microstructure of the TiO2 nanotube array (TNTA) were characterized by X-ray diffraction (XRD) and field emission scanning electron microscopy (FESEM). The UV-Vis spectra of the DST were characterized by diffuse reflectance spectra (DRS). The hydrogen sensitivity of the as-prepared sample was tested at room temperature under Xe-lamp (simulated solar light) irradiation. It was found that the sensor was highly sensitive to low concentrations of hydrogen as an application in air quality control.
Databáze: OpenAIRE