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Mixed metal oxide (MMO) coated titanium anodes comprise a family of electrodes made from commercially pure titanium to which an electro catalytic layer is applied by thermal decomposition. The electro catalytic layers is composed of a mixture of noble and valve metal oxides, the selection of which and their ratio is dictated by the electrolyte conditions in which the anode is immersed.
These anodes can be used to advantage in aggressive solutions or other difficult applications.
The manufacturing route of MMO coated anodes varies depending on the composition of the electro catalytic layer. In general the route involves multiple applications by thermal decomposition of mixtures of noble metals as their oxides.
A variety of shapes and forms are available including Tubular, Bar, Rod, Sheet, Wire, Disc and Mesh. Individually fabricated anodes are available to suit customers’ specific requirements.
MMO coatings can be specifically formulated to withstand the simultaneous generation of oxygen and chlorine, which occurs in dilute sea water or fresh water containing low chloride levels. MMO coated anodes are also durable in highly acidic media and are often used in deep well ground beds.
The advantages using mixed metal oxide titanium are,
| platinum plating [platinized anodes] platinum is one of the six metals in the "platinum" group of noble or precious metals, all of which are excellent catalyst materials. platinum is conductive, chemically stable and highly resistant to oxidation and corrosion. it has a silvery-gray color and can be polished to a variety of finishes. | |
platinized titanium anodestake advantage of the low consumption rate and high current density. Voltages in excess of 10 volts will result in severe pitting of the titanium core causing premature failure. | |
