Efficient and durable light-alkane oxidation over sintered Pt catalysts
Xuan Tang, Yang You, Lei Ying, Beien Zhu, Wangcheng Zhan, Yun Guo, Sheng Dai · 2026
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Description
Xuan Tang and co-authors flip a standard rule of catalysis by showing that deliberately clumped platinum particles beat finely spread ones for burning light alkanes. Sintering, where particles merge under heat, is normally blamed for killing catalysts. Their platinum sat on magnesium aluminate, a heat-stable support, in lumps tens of nanometers wide, and faced propane as the test fuel.
The sintered catalyst reached a turnover frequency of 0.1625 per second at 220 degrees Celsius, 116 times the rate of tiny platinum clusters, and hit 90 percent propane conversion at 245 degrees instead of 360 degrees. Calculations pinned the gain on flat metallic faces that resist oxygen poisoning, the usual drag on dispersed particles. The catalyst held steady for 48 hours in dry and wet feeds and after harsh aging, though oxygen-rich gas slowly rebuilt its surface toward weaker stepped forms.
Catalog record
| CREATOR | Xuan Tang, Yang You, Lei Ying, Beien Zhu, Wangcheng Zhan, Yun Guo, Sheng Dai |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 57959 |
| LICENSE | https://creativecommons.org/licenses/by/4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |