Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1273825 | International Journal of Hydrogen Energy | 2013 | 7 Pages |
Platinum (Pt) nanoparticles were successfully synthesized on tungsten oxide (WO3) thin films by electroless process without any further post-treatment. The prepared Pt nanoparticles were characterized by X-ray diffraction, X-ray photoelectron spectroscopy and field-emission scanning electron microscopy. Gas sensors based on the Pt–WO3 films were found to provide repeatable and significant responses to ppm-level H2. The size of Pt nanoparticles increases with the deposition time and has improved the sensing characteristics of the sensors. The work in this paper paves a facile way to the fabrication of Pt nanoparticles on metal oxide surface at a low temperature (68 °C).
Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Pt nanoparticles were synthesized on WO3 films by electroless process. ► H2 sensors were prepared based on the electroless Pt nanoparticles activated WO3 films. ► The H2 sensors provide repeatable and significant responses to ppm-level H2.