Poly(2-Acrylamido-2-methyl-1-propanesulfonic acid) hydrogel (p(AMPS)) containing metal ions such as Co(II), Ni(II) and Cu(II) was prepared from the aqueous solution of AMPS monomer and metal ion mixtures at 1:1 mole ratios. The prepared hydrogels already contained metal ions were washed with DI water and treated with aqueous NaBH4 for in situ metal nanoparticle formation within hydrogel matrices. The hydrogels imprinted with M ions (M: Co(II), Ni(II), and Cu(II) etc) were used in the hydrogen generation from the hydrolysis of NaBH4 after metal nanoparticle formation. Bare hydrogels without imprinting metals ion were also prepared and their catalytic performances were compared with M ion imprinted hydrogels. Furthermore, bare and metal ion imprinted hydrogels (MIPH) were employed in several metal ion loading and reduction cycles to increase the amounts of metal nanoparticles and their H2 production rates were compared. The MIPH seems viable for various metal nanoparticle preparation and catalysis of different reactions.

Imprinting hydrogels with metal ions for metal nanoparticle preparation and use in hydrogen production as catalysis media

245th National Meeting (2013)

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