Fabrication and Catalytic Activity of Nickel Core-shell Structure

Nickel has received wide application in industry catalyst field. PS/Ni core-shell structure and Ni nanoparticles were fabricated by soft chemical methods, and SEM, XRD were used to characterize the morphology and structure of samples. The catalytic performances of the PS/Ni and Ni nanoparticles were evaluated using methylene blue as a model reagent. This experiment realized degradation of dye and hydrogen production via NaBH4 hydrolysis in one step. The results show that the core-shell structure promotes the catalytic activity of nickel. The degradation efficiency of dye and hydrogen production velocity using PS/Ni catalyst is 1.42 and 4.76 times higher than that using Ni nanoparticle catalyst, respectively. The advantage of core-shell structure in catalysis is proved.