H2 Sensing Performance of TiO2-Based Diode-Type Sensors
H2 sensing properties of anodic TiO2 films equipped with Pd or Pd-Pt alloy electrodes has been investigated in air and in N2 atmosphere at 250°C and room temperature. The use of a Pd-Pt alloy electrode and a Pt paste improved the magnitude of H2 response, response time, stability and pretreatment- and atmosphere-dependent response properties under humid environments.
Alan K.T. Lau, J. Lu, Vijay K. Varadan, F.K. Chang, J.P. Tu and P.M. Lam
Y. Shimizu et al., "H2 Sensing Performance of TiO2-Based Diode-Type Sensors", Advanced Materials Research, Vols. 47-50, pp. 1510-1513, 2008