Impacts of Surface Modification of Pt-Sensing Electrodes with Au on Hydrogen-Sensing Properties and Mechanism of Diode-Type Gas Sensors Based on Anodized Titania.

The impacts of the surface modification of Pt-sensing electrodes with Au on the H-sensing properties and mechanism of diode-type gas sensors based on anodized titania (TiO) were discussed in this study. The sensors using Pt electrodes modified with and without Au (Au()/Pt/TiO (: sputtering time (s)) and Pt/TiO sensors, respectively) were fabricated by employing an anodized TiO film on a Ti plate. The surface modification of the Pt electrodes with Au(20) having a thickness of ca.