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Advanced Technology

Precious Metal Colloids

Nano-sized colloids are manufactured and supplied in "Clusters.“

With a reliable quality control system, we supply colloids consisting of homogeneously dispersed clusters.

Features

  • Colloids with homogeneously dispersed clusters, which consist of hundreds of atoms
  • Precious metal nanoparticles for catalysts and sensors are currently under development.
What is a precious metals colloid?

Precious Metal Colloids and Nanoparticles

Product namePrecious metal
(core/shell)
Diameter
(nm)
Protective
agent
Colloid solutionColloid
powder
Concentration
(wt.%)
SolventConcentration
(wt.%)
AuPVPAu5~10PVP*14Water-
Pt PVPPt2PVP*14Water20~30
Pd PVP largePd5~20PVP*14Water20~30
Pd PVP finePd4PVP*14Water20~30
Pt/Rh (Core/Shell) PVPPt / Rh2PVP*14Water-
Pt/Pd (Core/Shell) PVPPt / Pd2PVP*14Water-
PtPVP EthanolPt2PVP*11~4Ethanol-
PdPVP IPAPd2PVP*11~4IPA-
Pt PAAPt2PAA*22Water-
Pt TMAPt2TMA*34Water-
Pt PEIPt3~5PEI*4~0.5Water-
Au DTAu3Thiol~40Organic solvent*580
Pt DAPt2Amine~10Organic solvent*5-
Pd DAPd4Amine~50Organic solvent*5-

*1: PVP; Polyvinyl Pyrrolidone
*2: PAA; Polyacrylic Acid
*3: TMA; Tetramethyl Ammonium
*4: PEI; Polyethyleneimine
*5: Toluene, Chloroform, -Terpineol, etc.
Other products available upon consultation.

Precious Metal Colloids (TEM Images)

Hydrophilic Colloid

PtPVP
PdPVP
AuPVP
PtPdPVP

Hydrophobic Colloid

PtDA
PdDA
AuDT 3nm
AuDT 5nm

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