Hydrophobic zeolite modification for in situ peroxide formation in methane oxidation to methanol
Zhejiang University · Shell (Netherlands) · +3 more institutions
Abstract
Selective partial oxidation of methane to methanol suffers from low efficiency. Here, we report a heterogeneous catalyst system for enhanced methanol productivity in methane oxidation by in situ generated hydrogen peroxide at mild temperature (70°C). The catalyst was synthesized by fixation of AuPd alloy nanoparticles within aluminosilicate zeolite crystals, followed by modification of the external surface of the zeolite with organosilanes. The silanes appear to allow diffusion of hydrogen, oxygen, and methane to the catalyst active sites, while confining the generated peroxide there to enhance its reaction probability. At 17.3% conversion of methane, methanol selectivity reached 92%, corresponding to methanol…
Citation impact
- FWCI
- 37.14
- Percentile
- 100%
- References
- 51
Authors
11Topics & keywords
- Hydrogen peroxide
- Methanol
- Methane
- Zeolite
- Catalysis
- Chemistry
- Peroxide
- Anaerobic oxidation of methane
- Clean water and sanitation