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A series of alumina supported ruthenium catalysts, which prepared by hydrogen treatment or hydrazine reduction, were characterized by N2 adsorption, X-ray diffraction (XRD), X-ray fluorescence (XRF), CO chemisorption, and Temperature-programmed desorption of hydrogen (H2-TPD). In contrast to the samples with conventional hydrogen reduction, there was almost no residual chlorine in the samples using...
A series of Ru/Al 2 O 3 catalysts for ammonia synthesis were prepared by hydrazine reduction of RuCl 3 in KOH solution under the mild conditions, and characterized by XRF, TEM and CO chemisorption. The results showed that no chloride remained on the catalysts obtained by hydrazine reduction and the activities of the catalysts with hydrazine treatment were higher than those...
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