Deposition of Pd onto SnO2 Nanoparticles-Based Gas Sensors Using a Pd Complex as the Precursor
The deposition of Pd nanoparticles onto thiol-functionalized SnO2 nanoparticles was carried out at the aqueous/organic liquid/liquid interface to prepare Pd-loaded SnO2 nanoparticles for high-sensitive sensor materials. The method is based on the self-assembly deposition of Pd onto dimercaptosucinic acid (DMSA)-functionalized SnO2 nanoparticles (mean diameter: 4 nm) prepared by a hydrothermal method. Pd nanoparticles of 2-3 nm in chloroform were prepared by thermal decomposition of a Pd complex at high temperature (170 °C). Thin film-type device using the prepared Pd-loaded SnO2 nanoparticles was fabricated and tested for its sensing properties.
Alan K.T. Lau, J. Lu, Vijay K. Varadan, F.K. Chang, J.P. Tu and P.M. Lam
T. Kida et al., "Deposition of Pd onto SnO2 Nanoparticles-Based Gas Sensors Using a Pd Complex as the Precursor", Advanced Materials Research, Vols. 47-50, pp. 1506-1509, 2008