Editorial Feature

Ruthenium (Ru) Nanoparticles - Properties, Applications

Nanoparticles are important scientific tools as they act as a link between bulk materials and atomic or molecular structures. They have exceptional optical properties and the potential to produce quantum effects.

Ruthenium is one of the most effective hardeners for palladium and platinum, and hence it is alloyed with these metals to make electrical contacts for laboratory equipment and severe wear resistant electronics. Ruthenium nanoparticles also serve as versatile catalysts.

Chemical Properties

The chemical properties of ruthenium nanoparticles are outlined in the following table.

Chemical Data
Chemical symbol Ru
CAS No. 7440-18-8
Group 8
Electronic configuration [Kr] 4d7 5s1

Physical Properties

The physical properties of ruthenium nanoparticles are given in the following table.

Properties Metric Imperial
Density 12.37 g/cm3 0.4469 lb/in3
Molar mass 101.07 g/mol -

Thermal Properties

The thermal properties of ruthenium nanoparticles are provided in the table below.

Properties Metric Imperial
Melting point 2334°C 4233°F
Boiling point 4150°C 7500°F

Manufacturing Process

Ruthenium nanoparticles can be prepared by selective hydrogenation of p-chloronitrobenzene to p-chloroaniline using low boiling alcohol or a mixture of ethanol/water as solvent and microwave irradiation as a heating source.


The key applications of ruthenium nanoparticles are listed below:

  • Electrochemical capacitors
  • Hydrogenation catalyst
  • Polymer membranes
  • Hardening agent for platinum or palladium alloys
  • Coatings, plastics, nanofibers, textiles and nanowires.

Source: AZoNano


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