The XT 40% Silver on Vulcan XC-72R Grade R catalyst manufactured by Fuel Cells ETC is a fine powder that can be used as an electrocatalyst in electrochemical devices and as a heterogeneous catalyst for the synthesis of various organics, such as:

Alkaline fuel cell cathode catalyst (ORR)
Metal-air battery air electrodes (Zn-air, Al-air)
CO₂ electrolysis to CO
Chlor-alkali oxygen depolarized cathodes
Electrochemical sensors
Conductive inks / printed electronics
Antimicrobial coatings & filters
Hydrogen peroxide electrogeneration
Wastewater catalytic treatment
EMI shielding / conductive polymer additives
Selective oxidation of alcohols to aldehydes
Alcohol to ketone oxidation
Benzyl alcohol oxidation
Oxidative coupling of amines
Nitroaromatic reduction to amines
Transfer hydrogenation reactions
Oxidation of VOC organics
Epoxidation support catalyst systems
Selective alkyne to alkene reduction
Hydrogen activation in tandem systems
Cyclization reactions
Click-type azide/alkyne variants
A³ coupling (aldehyde + alkyne + amine)
C–H functionalization (specialty cases)
Click-type azide/alkyne variants
Alkyne activation chemistry
Dehalogenation reactions
Halide abstraction catalysis
Isomerization reactions
Photocatalytic organic transformations
Radical-mediated oxidations
and many other electrochemical and non-electrochemical end use cases

This product has a BET surface area of ~94-124 m²/gram. The average crystallite size for Ag nanoparticles is calculated as ~36.61 nm for this product. The average particle size for this supported catalyst material is ~32.6 microns.

40% Silver on Vulcan XC-72R Grade R Technical Specification Sheet

FCE Catalyst Properties
Appearance	Fine, porous black powder
Molecular Formula	~40 wt % Ag, ~60 wt % Vulcan carbon (XC72R)
Molecular Weight	Not applicable (heterogeneous composite)
Purity	> 99.9% (3N)
Particle Morphology	Aggregated clusters of primary Ag nanoparticles supported on high surface area carbon black
Average Particle Size	~32.6 µm (D₅₀, Laser Diffraction)
Particle Size Range	0 - 100 microns (measured with laser diffraction method)
BET Surface Area	~94 - 124 m2/gram
Bulk Density	~0.2 – 0.32 g cm⁻³
Color	Black
Structure	Face‑centered cubic (fcc) Silver (0)
Database Reference	COD Card No. (9011607); JCPDS No. (04‑0783)
Space Group	Fm-3m
Secondary Phases	None detected (only amorphous carbon support) (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	~15.77 µm (measured with laser diffraction method)
Particle Size at D25	~23.58 µm (measured with laser diffraction method)
Particle Size at D50	~32.63 µm (measured with laser diffraction method)
Particle Size at D75	~42.31 µm (measured with laser diffraction method)
Particle Size at D90	~50.78 µm (measured with laser diffraction method)