Abstract
Platinum (Pt) nanoparticles were synthesized on tin dioxide (SnO 2) nanowires by applying γ-ray radiolysis. The growth behavior of Pt nanoparticles was systematically investigated as a function of precursor concentration, illumination intensity and exposure time of the γ-rays. We found that these processing parameters greatly influenced the growth behavior of Pt nanoparticles in terms of size and formation density. Vapor-phase-grown SnO 2 nanowires were uniformly covered with Pt nanoparticles by the radiolysis process. The Pt nanoparticle-functionalized SnO 2 nanowires were tested as sensors for detecting reductive gases including carbon monoxide, toluene, and benzene. The results indicate that the γ-ray radiolysis is an efficient way of functionalizing the surface of oxide nanowires with catalytic Pt nanoparticles.
| Original language | English |
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| Pages (from-to) | 1688-1694 |
| Number of pages | 7 |
| Journal | Journal of Materials Research |
| Volume | 27 |
| Issue number | 13 |
| DOIs | |
| State | Published - 14 Jul 2012 |