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Low-Temperature Ammonia Oxidation Over Pt/γ-Alumina: The Influence of the Alumina Support
| Content Provider | Semantic Scholar |
|---|---|
| Author | Sobczyk, Dariusz Hensen, E. J. M. Jong, Arthur M. De Santen, R. A. Van |
| Copyright Year | 2003 |
| Abstract | Deactivation of a Pt/γ-alumina catalyst used for low-temperature ammonia oxidation was studied using positron-emission profiling (PEP). Evidence is presented that irreversibly adsorbed nitrogen and oxygen species deactivate the catalyst. This deactivation is further accelerated by preadsorption of oxygen on the catalyst. Ammonia strongly interacts with the alumina support. A steady state of the ammonia oxidation reaction is reached after the alumina sites are saturated with ammonia. PEP experiments show that spillover of oxygen to the support is not significant during the ammonia oxidation. |
| Starting Page | 109 |
| Ending Page | 117 |
| Page Count | 9 |
| File Format | PDF HTM / HTML |
| DOI | 10.1023/A:1024876421421 |
| Volume Number | 23 |
| Alternate Webpage(s) | https://pure.tue.nl/ws/files/1749697/591246.pdf |
| Alternate Webpage(s) | https://doi.org/10.1023/A%3A1024876421421 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |