PlumX Metrics
Embed PlumX Metrics

Effect of reduction method on the activity of Pt–Sn/SiO 2 for dehydrogenation of propane

Catalysis Today, ISSN: 0920-5861, Vol: 232, Page: 33-39
2014
  • 58
    Citations
  • 0
    Usage
  • 57
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    58
    • Citation Indexes
      58
  • Captures
    57

Article Description

The effect of reduction method (direct reduction ( DR ), decomposition in inert gas ( DI ) and calcination-reduction ( CR )) on the catalytic performances of Pt–Sn/SiO 2 catalyst in the dehydrogenation of propane was investigated. The Pt–Sn/SiO 2 ( DR ) showed the highest activity among the catalysts tested. The order of activities of Pt/SiO 2 and Pt–Sn/SiO 2 catalysts was Pt/SiO 2 ( DR ) ≦ Pt–Sn/SiO 2 ( CR ) < Pt–Sn/SiO 2 ( DI ) < Pt–Sn/SiO 2 ( DR ). The results of structural characterization by X-ray diffraction (XRD), CO pulse, transmission electron microscopy (TEM), and Pt L III and Sn K-edges X-ray absorption fine structure (XAFS) spectroscopy indicated that Pt 3 Sn alloy nanoparticle was mainly formed on the Pt–Sn/SiO 2 ( DR ). In the case of the Pt–Sn/SiO 2 ( CR ) catalyst, PtSn alloy particle was mainly dispersed on SiO 2. On the other hand, Pt metal particles and highly dispersed SnO 2 were present on the Pt–Sn/SiO 2 ( DI ). The relationship between activity and structure of platinum-tin catalysts suggested that Pt 3 Sn alloy acts as active site for dehydrogenation of propane, whereas PtSn alloy shows low or no activity.

Provide Feedback

Have ideas for a new metric? Would you like to see something else here?Let us know