2008 NSTI Nanotechnology Conference and Trade Show - Nanotech 2008 - 11th Annual

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Clean Technology 2008

Cost-effective generation of portable hydrogen from Sodium Borohydride using electroless nickel nanoparticles

E.E. Kalu, L. Katam, K. Ramos
FAMU-FSU College of Engineering, US

hydrogen, electroless, polymer-stabilized, catalyst, nanoparticles

In this study, catalytic hydrolysis of alkaline NaBH4 solution is studied using catalyst based on Ni nanoparticles. The Ni catalysts were synthesized by polymer-stabilized Pd nanoparticle-catalyzation and activation of Al2O3 substrate and electroless Ni plating of the substrate for selected time lengths. Catalytic activity of synthesized Ni catalysts was tested for the hydrolyzation of alkaline-stabilized NaBH4 solution for hydrogen generation. The effect of Palladium loadings on the substrate and nickel plating time lengths on hydrogen generation rates is analyzed and discussed. Compositional analysis and surface morphology were done for metallized Al2O3 particles using SEM and EDAX. Apparently, for the conditions studied, two-stage hydrogen evolution rates describe the hydrogen-time curves – the high catalytic activity stage that is followed by the low catalyst activity stage. Further, within the limited range of variables investigated 85 g Pd/g Al2O3 loading and nickel plating time of 5 minutes yielded the best hydrogen generation rates. Suggestions are provided for further work needed prior to using the catalyst for portable hydrogen generation from alkaline-stabilized NaBH4 solution.

Nanotech 2008 Conference Program Abstract