Surface Coating / Alfa Chemistry

Customized Nanocoating on Platinum Substrate


Platinum is a low-reactive, off-white transition metal with a high density, ductility, and corrosion resistance. Platinum metals with functional surfaces provide numerous performance benefits in a wide range of applications. Some platinum-containing compounds are used in chemotherapy to treat certain cancers.

Alfa Chemistry offers unique functionalized coating services on platinum substrate surfaces to its customers. With our extensive and simple-to-apply custom coating treatments, you can increase the performance of practically any product. Work with us to make your platinum surfaces functional!

Extensive Surface Modification Technology Options

Alfa Chemistry provides a number of surface coating processes that can be used to functionalize platinum surfaces for a variety of performance advantages. The following are some of our platinum surface modification technologies, but they are not exhaustive.

  • Waterproof surface coating technologies - Platinum substrate surfaces can be functionalized to be highly water- and oil-resistant, making them very repellant to practically any liquid.
  • Hydrophilic coating technology - Platinum substrate surfaces can be functionalized to make them very hydrophilic.
  • Adhesion-promoting coating technology - Platinum substrate surfaces can be functionalized to improve their adhesive qualities.
  • Particle-modified coating technology - Alfa Chemistry can improve particle behavior, minimize aggregation, and maximize cross-linking by functionalizing platinum powder and gold particle surfaces.
  • Lubricant coating technology - To reduce surface friction, we can functionalize the surface of platinum substrates.

These coatings are all nanoscale, optically clear, and long-lasting.

Extensive Surface Modification Technology Options

Learn more about our hydrophobic and oleophobic coatings.
Learn more about our hydrophilic coatings.
Learn more about our adhesion promotion coatings.
Learn more about our particle-modified coatings.
Learn more about our lubricant coatings.

Alfa Chemistry Coating Solution Cases

Case 1: Carbon nanotube coating on platinum electrodes

Alfa Chemistry coated platinum electrodes with carbon nanotube coatings to support its study on functional improvement and size reduction of neural interface electrodes due to the possible application of carbon nanotube coatings in cochlear electrodes.

By treating carbon nanotubes (CNTs) with nitric acid reflux, we were able to create long-term stable and dispersant-free CNT aqueous dispersions. An automated spraying procedure was employed to coat platinum substrates with these. The electrical properties of the Pt electrodes were improved by these coatings with superior cytocompatibility, which reduced impedance values and increased capacitance.

Case 2: Graphene coatings on platinum-plated molybdenum foils

Graphene has been studied as a filler for thin anti-corrosion coatings on various metal substrates and for improving the protective qualities of polymer coatings in recent years.

Alfa Chemistry has successfully used chemical vapor deposition to create bilayered CVD-grown graphene coverings on platinum-plated molybdenum foils that are defect-free and have good barrier characteristics. As a result, graphene coatings have strong protective characteristics and can be employed as a corrosion barrier for metals.

CVD of grapheneFig 1. CVD of graphene on Pt-coated Mo (Mo/Pt-G). (Naghdi S, et al. 2018)

Why Choose Alfa Chemistry?

  • Our custom coatings are thin, light, environmentally friendly and safe.
  • We create the right coating solution for the specific requirements of your coated product.
  • We have extensive experience working on surface chemistry technologies related to platinum.


  • Naghdi S, et al. (2018). "Comprehensive Electrochemical Study on Corrosion Performance of Graphene Coatings Deposited by Chemical Vapour Deposition at Atmospheric Pressure on Platinum-Coated Molybdenum Foil." Corrosion Science. 130: 31-44.

Our products and services are for research use only and cannot be used for any clinical purpose.

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