O.O.O.O.O.O.[N+:7]([O-:10])([O-:9])=[O:8].[Ni+2:11].[N+:12]([O-:15])([O-:14])=[O:13]>O>[N+:7]([O-:10])([O-:9])=[O:8].[Ni+2:11].[N+:12]([O-:15])([O-:14])=[O:13]A nickel nitrate solution was prepared by dissolving 0.67 grams nickel nitrate hexahydrate in 10 grams deionized water. This solution was then added to 3 grams calcined MCM-41 and mixed well. The liquid was evaporated from the mixture at 60° C. for 18 hours. The nickel loading was 4.4 wt.%.
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