Abstract
Well-dispersed Ni-CeOx nanoparticles grown on carbon nanotubes (CNTs) were successfully synthesized via a simple one-step co-reduction method. The structure and properties of the catalysts were investigated by XRD, XPS, SEM, TEM and ICP-OES. Among the prepared catalysts, Ni1-(CeO1.8)0.5/CNTs exhibited the highest catalytic activity, with 100% hydrogen selectivity and 80 molH2 mol Ni −1 h−1 of hydrogen generation rate (HGR) for hydrogen generation from hydrazine under 1.0 M NaOH solution at 343 K. This superior catalytic performance might be attributed to the smaller sizes and amorphous states of Ni species in Ni1-(CeO1.8)0.5/CNTs, as well as the close attachment of Ni-CeOx NPs on CNTs.
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