J IRAN CHEM SOC
The BET surface area and total pore volume of the cata-
lyst obtained 187.5 m2/g and 0.4424 cm3/g, respectively.
The occurrence of high surface area for calcined catalyst
can be attributed to the preparation method adopted ther-
mal decomposition of VLH2 as precursor and also using
gamma alumina as support. The results of BET specifc
surface area are in good agreement with SEM observation.
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Acknowledgements This work is fnancially supported by Iranian
National Science Foundation (INSF). Authors thank Iranian Research
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