Synthesis and characterization of Ni/γ-Al2O3 nanocatalyst used in catalytic decomposition of hydrazine
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Ni/γ-Al2O3 nanocatalyst was synthesized by incipient wetness impregnation method for using in the catalytic decomposition ofhydrazine. To stabilize the catalyst, γ-Al2O3 support was precalcined which resulting 8% reduction in specific surface area. Thecatalyst was characterized by XRD, BET and TEM. The results showed that increasing the number of impregnation steps ledto a reduction in size of nickel particles. In addition, the number of impregnation steps had a direct effect on strength ofcatalyst and could reduce the catalyst loss. TPR analysis showed that Ni/γ-Al2O3 nanocatalyst was reduced at about 700 oC.
Abstract
Ni/γ-Al2O3 nanocatalyst was synthesized by incipient wetness impregnation method for using in the catalytic decomposition ofhydrazine. To stabilize the catalyst, γ-Al2O3 support was precalcined which resulting 8% reduction in specific surface area. Thecatalyst was characterized by XRD, BET and TEM. The results showed that increasing the number of impregnation steps ledto a reduction in size of nickel particles. In addition, the number of impregnation steps had a direct effect on strength ofcatalyst and could reduce the catalyst loss. TPR analysis showed that Ni/γ-Al2O3 nanocatalyst was reduced at about 700 oC.
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