Alcohol Dehydration on Monooxo W=O and Dioxo O=W=O Species

Journal Article · Thu Aug 16 00:00:00 EDT 2012 · Journal of Physical Chemistry Letters, 3(16):2168-2172

DOI:https://doi.org/10.1021/jz300885v· OSTI ID:1052930

Li, Zhenjun; Smid, Bretislav; Kim, Yu Kwon; Matolin, Vladimir; Kay, Bruce D; Rousseau, Roger J; Dohnalek, Zdenek

The dehydration of 1-propanol on nanoporous WO3 films prepared via ballistic deposition at ~20 K has been investigated using temperature programmed desorption, infrared reflection absorption spectroscopy and density functional theory. The as deposited films are extremely efficient in 1-propanol dehydration to propene. This activity is correlated with the presence of dioxo O=W=O groups while monooxo W=O species are shown to be inactive. Annealing of the film induces densification that results in the loss of catalytic activity due to annihilation O=W=O species.

• Research Organization: Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 1052930
• Report Number(s): PNNL-SA-88790; KC0302010
• Journal Information: Journal of Physical Chemistry Letters, 3(16):2168-2172, Journal Name: Journal of Physical Chemistry Letters, 3(16):2168-2172
• Country of Publication: United States
• Language: English