Synthesis of NiPt/CeO2Catalyst and Its Catalytic Performance for Hydrogen Production via Hydrazine Hydrate Decomposition
Hydrazine hydrate(N2H4·H2O),one of the most commonly used hydrogen storage materials worldwide,has attracted significant attention from researchers.Using a low-temperature impregnation-reduction method,NiPt metal nanoparticles were loaded onto CeO2nanocubes to prepare NiPt/CeO2 catalysts with varying metal ratios.The structure of the catalysts and their catalytic performance for hydrazine hydrate hydrogen production were further investigated.The research results demonstrate that the excellent activity of the catalyst can be attributed to the alloying effect of the NiPt bimetallic formation and the synergistic interaction between the metals and the CeO2 nanocube support.The prepared Ni5Pt5/CeO2 catalyst exhibits the best catalytic activity for hydrazine hydrate decomposition hydrogen production,with a turnover frequency(TOF)value of 2960.5 h-1 at 323 K,and maintains good catalytic activity even after 5 cycles.
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