Patent ID: 8293205

Claim:
A method for obtaining a promoted molybdenum sulfide catalyst and a promoted molybdenum sulfide added with a nanometric additive, the method comprising the steps of: mixing a salt of H 24 Mo 7 N 6 O 24 :4 H 2 O with NH 4 OH, and water to form a mixture; sonificating the mixture in an ultrasonic bath; adding a group VIB metal transition inorganic salt and a group VIIIB transition metal inorganic salt; bubbling a flow of H 2 S in the ultrasonic bath to form thiosalt crystals; aging the thiosalt crystals; and filtering and drying the thiosalt crystals, wherein a nanometric agent is further added in the mixing step to obtain the promoted molybdenum sulfide added with a nanometric additive.