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!
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.
These coatings are all nanoscale, optically clear, and long-lasting.
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.
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.
Fig 1. CVD of graphene on Pt-coated Mo (Mo/Pt-G). (Naghdi S, et al. 2018)
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