The ruthenium oxide (RuO2) manufactured by Fuel Cells ETC is a fine powder that can be used as a catalyst or electrocatalyst in various applications such as chlorine gas generation via Sumitomo-Deacon process, thick-film resistors, electrical contacts, chlorine oxide generation, oxygen generation, ammonia and acetic acid production, supercapacitors, sensors, microelectronics, water treatment, just to name a few.

This product has a BET surface area of 80-100 m2/gram. The average crystallite size is calculated as 5.5 nm for this product. The average particle size was measured as ~28.5 microns.

Ruthenium Oxide Grade R Technical Specification Sheet

FCE Catalyst Properties
Appearance	Dark grey to black powder
Molecular Formula	RuO2
Molecular Weight	133.07 g/mol
Purity	> 99.9% (3N)
Particle Morphology	Irregular/rough-surfaced grains
Average Particle Size	28.4 µm (D₅₀, Laser Diffraction)
Particle Size Range	0 - 100 microns (measured with laser diffraction method)
BET Surface Area	80 - 100 m2/gram
Bulk Density	~1.4 g/cm3
Color	Black
Structure	Rutile-phase RuO2
Database Reference	COD Card No. (1538150); JCPDS No. (40-1290)
Space Group	P4₂/mnm
Secondary Phases	None detected (via PXRD)
Instrument for Powder XRD	Instrument: Rigaku MiniFlex 300/600 Cu-Kα radiation (λ = 1.5406 Å \| scan rate: 0.5°/min \| step size: 0.02°(2θ), 2θ range: 10–80° \| optics: Monochromator
Instrument for BET Surface Area Analysis	Anton Paar QuantaChrome NOVA
Adsorption Gas for BET Surface Area Analysis	N₂, Bath temperature: 77.3 K
Instrument for Particle Size Distribution (Laser Diffraction)	Beckman Coulter LS 13 320
Medium/Fluid for Particle Size Distribution	18 Megaohm DI-Water
Particle Size at D10	12.95 µm (measured with laser diffraction method)
Particle Size at D25	19.22 µm (measured with laser diffraction method)
Particle Size at D50	28.49 µm (measured with laser diffraction method)
Particle Size at D75	41.56 µm (measured with laser diffraction method)
Particle Size at D90	55.37 µm (measured with laser diffraction method)