✦ LIBER ✦
A New Method for the Synthesis of Highly Dispersive and Catalytically Active Platinum Nanoparticles Confined in Mesoporous Zirconia
✍ Scribed by H.-R. Chen; J.-L. Shi; Y.-S. Li; J.-N. Yan; Z.-L. Hua; H.-G. Chen; D.-S. Yan
- Publisher
- John Wiley and Sons
- Year
- 2003
- Tongue
- English
- Weight
- 176 KB
- Volume
- 15
- Category
- Article
- ISSN
- 0935-9648
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✦ Synopsis
Pure metallic platinum nanocrystallites with uniform diameter, confined in the pore channels of mesoporous zirconia, have been synthesized by a new ion‐ exchange reaction followed by in‐situ reduction. Such a nanostructured platinum–zirconia mesoporous composite material is demonstrated to be an efficient catalyst for the oxidation of CO. Incorporation of ceria into the zirconia walls is shown to lead to a material with promise as a high‐performance exhaust‐conversion catalyst with immediate activation of the catalyst on engine start‐up.