Ni Hollow Nanospheres: Preparation and Catalytic Activity

[摘要] A method to prepare monodispersed silica nanospheres as templatesfor fabrication of nickel-silica composite hollow spheres ispresented. The structures for both silica nanospheres andnickel-silica composite hollow spheres were characterized by X-raydiffraction (XRD), transmission electron microscopy (TEM), andscanning electron microscopy (SEM). The catalytic activity foracetone hydrogenation on nickel-silica composite hollow sphereswas evaluated, and high conversion efficiency of 70% with goodselectivity of 82.7% to 2-propanol was observed. The mechanismof high catalytic activity and good selectivity in acetonehydrogenation reaction was discussed.

[学科分类] 材料工程