Hydrogel assisted nickel nanoparticle synthesis and their use in hydrogen production from sodium boron hydride

摘要

In this study, hydrogels were synthesized from 2-acrylamido-2-methyl-l-propansulfonic acid (AMPS) via a photo polymerization technique. Approximately 100 nm Ni metal nanoparticles were generated in situ inside these p(AMPS) hydrogel networks and used as a catalyst in hydrogen production by hydrolysis of sodium boron hydride in a basic medium. The effects of several parameters on the hydrolysis reaction such as the amount of catalyst, the initial concentration of NaBH_4, and the temperature were investigated. The activation energy, activation enthalpy and activation of entropy for the reaction were calculated as 42.28 kJ mol~(-1), 39.59 kJ mor~(-1) and -171.67 J mol~(-1) K~(-1) respectively.