Poly(vinyl imidazole) (p(VI)) and poly(4-vinylpyridine) (p(4-VP)) particles and their composite with silica as (p(VI)-Si) and (p(4-VP)-Si) were synthesized in an oil-in-water micro emulsion system. Pores were generated inside particles by removing silica from p(VI) and p(4-VP) composites upon HF treatment. The sizes of particles were ranged 300-800, and 300-600 nm for p(VI), and p(4-VP), respectively. Co and Ni metal nanoparticles were prepared within p(VI) and p(4-VP) based particles by the absorption of the corresponding metal ions from aqueous solution and reduction with NaBH4 in situ.Different parameters affecting the hydrogen production rate from the hydrolysis of NaBH4 such as metal types, temperature, NaOH concentration, and metal reloading were investigated. For the p(VI)-based particles, the activation energy, the enthalpy, and the entropy for the NaBH4 hydrolysis reaction were also calculated as 37.578 kJmol-1, 34.146 kJmol-1, and -191.22 kJmol-1K-1, respectively.

P(VI) and p(4-VP)   polymeric particles and their silica composites for situ Co and Ni nanoparticles and their use as catalyst in NaBH<sub>4 </sub>hydrolysis

245th National Meeting (2013)

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P(VI) and p(4-VP) polymeric particles and their silica composites for situ Co and Ni nanoparticles and their use as catalyst in NaBH4 hydrolysis

P(VI) and p(4-VP) polymeric particles and their silica composites for situ Co and Ni nanoparticles and their use as catalyst in NaBH₄hydrolysis