Palladium Powder

Palladium Powder is characterized by its high surface area, excellent catalytic activity, and resistance to oxidation, making it an essential material in heterogeneous catalysis and electrochemistry. Its fine particle size ensures rapid reaction kinetics, supporting applications in fuel cells, catalytic converters, and fine chemical synthesis. Industries such as automotive, electronics, and renewable energy rely on it for catalytic hydrogenation, electrocatalyst preparation, and hydrogen absorption studies. Specific uses include preparation of supported catalysts, production of conductive pastes, and electrodes for proton exchange membrane fuel cells. In research, it enables investigations into catalytic reaction pathways, nanoparticle stability, and electrochemical performance optimization. Its combination of high reactivity and stability makes it indispensable in both industrial processes and academic studies.

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Tolerance

Properties

Reference & Citations

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Tolerances

Powder

Mean Particle Size		Nominal
Minimum Particle Size		Nominal
Maximum Particle Size		Nominal
Maximum Particle Size		Nominal
Particle Size D10		Nominal
Particle Size D50		Nominal
Particle Size D90		Nominal

Material Properties for Precious Metals

Atomic Properties

Element	Value
Atomic number	46
Crystal structure	Face centred cubic
Electronic structure	Kr 4d¹⁰
Valences shown	2, 3, 4
Atomic weight( amu )	106.42
Thermal neutron absorption cross-section( Barns )	6
Photo-electric work function( eV )	5
Natural isotope distribution( Mass No./% )	108/ 26.7
Natural isotope distribution( Mass No./% )	110/ 11.8
Natural isotope distribution( Mass No./% )	104/ 11.0
Natural isotope distribution( Mass No./% )	102/ 1.0
Natural isotope distribution( Mass No./% )	105/ 22.2
Natural isotope distribution( Mass No./% )	106/ 27.3
Atomic radius - Goldschmidt( nm )	0.137
Ionisation potential( No./eV )	1/ 8.3
Ionisation potential( No./eV )	2/ 19.4
Ionisation potential( No./eV )	3/ 32.9

Mechanical Properties

Element	Value
Material condition	Soft
Material condition	Hard
Poisson's ratio	0.39
Poisson's ratio	0.39
Bulk modulus( GPa )	187
Bulk modulus( GPa )	187
Tensile modulus( GPa )	121
Tensile modulus( GPa )	121
Hardness - Vickers( kgf mm⁻² )	40
Hardness - Vickers( kgf mm⁻² )	100
Tensile strength( MPa )	140-195
Tensile strength( MPa )	325
Yield strength( MPa )	205
Yield strength( MPa )	34.5

Electrical Properties

Element	Value
Electrical resistivity( µOhmcm )	10.8@20@20
Temperature coefficient( K⁻¹ )	0.0042@0-100
Thermal emf against Pt (cold 0C - hot 100C)( mV )	-0.57

Physical Properties

Element	Value
Boiling point( C )	3140
Density( gcm⁻³ )	12@20°C

Thermal Properties

Element	Value
Melting point( C )	1554
Latent heat of evaporation( J g⁻¹ )	3398
Latent heat of fusion( J g⁻¹ )	157
Specific heat( J K⁻¹ kg⁻¹ )	244@25
Thermal conductivity( W m⁻¹ K⁻¹ )	71.8@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	11@0-100