1 research outputs found
Discovery of Face-Centered-Cubic Ruthenium Nanoparticles: Facile Size-Controlled Synthesis Using the Chemical Reduction Method
We
report the first discovery of pure face-centered-cubic (fcc)
Ru nanoparticles. Although the fcc structure does not exist in the
bulk Ru phase diagram, fcc Ru was obtained at room temperature because
of the nanosize effect. We succeeded in separately synthesizing uniformly
sized nanoparticles of both fcc and hcp Ru having diameters of 2–5.5
nm by simple chemical reduction methods with different metal precursors.
The prepared fcc and hcp nanoparticles were both supported on γ-Al<sub>2</sub>O<sub>3</sub>, and their catalytic activities in CO oxidation
were investigated and found to depend on their structure and size