Researchers Inadvertently Boost Surface Area of Nickel Nanoparticles for Catalysis

Synthesis and chemical transformation of Ni nanoparticles embedded in silica

During deposition of a silica shell onto Ni nanoparticles, they are etched, oxidized, and embedded in the silica, which stabilizes the structure during oxidation and reduction.

January 15, 2018 | Source: NC State University, news.ncsu.edu, 28 Nov 2017, Joe Tracy

Researchers from North Carolina State University and the Air Force Research Laboratory have discovered that a technique designed to coat nickel nanoparticles with silica shells actually fragments the material – creating a small core of oxidized nickel surrounded by smaller satellites embedded in a silica shell. The surprising result may prove useful by increasing the surface area of nickel available for catalyzing chemical reactions.

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