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Transition Met Chem (2011) 36:245–248
40
30
20
10
0
loading amount of WO3 on MTS-9 is responsible for the
catalytic activity with 12% WO3 loading giving the best
results, and selectivity of products is independent of WO3
loading. On the basis of the characterization data and
results of the metathesis experiments, we conclude that
surface tungsten species, in the form of tetrahedral and/or
octahedral tungsten sites, are active centers rather than
crystalline WO3.
4W/MTS-9
8W/MTS-9
12W/MTS-9
16W/MTS-9
MTS-9
WO3
Acknowledgments This research work was supported by the SIN-
OPEC Jiujiang Petrochemical Company and the National Nature
Science Foundation of China (Grant No: 20976192).
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