Journal
SCIENCE
Volume 337, Issue 6095, Pages 713-717Publisher
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1222887
Keywords
-
Categories
Funding
- University of Trieste through FRA
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM)
- Air Force Office of Scientific Research (Multidisciplinary University Research Initiative) [FA9550-08-1-0309]
- Ministry of Science and Innovation of Spain [CSD2009-00013]
Ask authors/readers for more resources
There is a critical need for improved methane-oxidation catalysts to both reduce emissions of methane, a greenhouse gas, and improve the performance of gas turbines. However, materials that are currently available either have low activity below 400 degrees C or are unstable at higher temperatures. Here, we describe a supramolecular approach in which single units composed of a palladium (Pd) core and a ceria (CeO2) shell are preorganized in solution and then homogeneously deposited onto a modified hydrophobic alumina. Electron microscopy and other structural methods revealed that the Pd cores remained isolated even after heating the catalyst to 850 degrees C. Enhanced metal-support interactions led to exceptionally high methane oxidation, with complete conversion below 400 degrees C and outstanding thermal stability under demanding conditions.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available