Catalytic hydrogenation by transfer with a variety of hydrogen donors have been widely used in organic syntheses in the last few years. Various catalysts have been developed in this reaction, such as, noble, and base metal, even metal-free catalyst. Among them, Nickel has significant catalytic components because of their high economics, accessibility, and reactivity. In this work, a novel chemical transformation and subsequent morphology change of a nickel–silica hybrid system was synthesized. Nickel cores inside silica shells in Ni@mSiO₂ formed, mesoporous silica with a modified stöber process and very tiny nickel nanoparticles (<3nm) were generated via Melt infiltration method. By melt infiltration, we adjusted the metal distribution to an even, uniform outline for 10 wt% metal loadings by controlling infiltration process. The obtained Ni dispersion of Ni@mSiO₂ nanocatalysts was calculated to be 36.3%, exhibiting high value. The surface area and total pore volume of Ni@mSiO₂ was estimated to be 636 m²·g^-1 and 0.3 cm³·g^-1. The synthesized Ni@mSiO₂ nanospheres showed high activity as a catalyst, 2-phenylethanol was produced in acetophenone without gaseous hydrogen under 2-propanol as a solvent and reducing agent. Acetophenone reduction mechanisms produce a variety of compounds, but only 2-phenylethanol was synthesized with high yields 95%.