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Platinized Anode

Platinum is a precious metal having very good physical and chemical properties such as high corrosion resistance, thermal conductivity, catalytic nature.

As it is very expensive, platinum cannot be used in its solid form as an anode. So that Platinised Metal Anodes ( Pt Anode ) are produced by electroplating platinum ( Pt ) on a specially treated precious metal ( Titanium / Niobium / Tantalum / Zirconium ) substrate by means of electrodeposition process.

Thus electroplated metal anodes are economical as well as it retains the superior physical and chemical properties of platinum.

Platinized Titanium Anode
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TNTI has been manufacturing platinum clad anode materials and the leading supplier of platinum clad anode materials. The Platinized Titanium Anode is mostly used, because it has outstanding practical performance, such as strong ability of ionization release, good exchange of electrolyte, close structure and light weight, etc.


Electrowinning anode

Cathodic protection anodes

Rhodium plating anode

Anodes for sensing elements

Chromium plating anode

Hard chrome plating anodes

Copper plating anodes

Gold plating anodes

TNTI provide platinized titanium and platinized niobium anodes wherein the catalyst properties of platinum are combined with the mechanical robustness and corrosion resistance of titanium substrates. These formulations are typically used in hard chrome plating and in applications taking advantage of the low anodic potential associated with platinum. The substrate is entirely plated with platinum metal showing the high quality characteristics typical of TNTI anodes in terms of product durability.

Our Platinized Titanium Anode are:

Resistant to corrosion in aggressive electrolyte environments

Uniform in platinum coating thickness

Customizable according to customer’s specific design and geometry

Various anode structure have been developed by TNTI over the years to match the industry requirements. Today we produce anodes in all kind of shapes: sheet, mesh, rod, strip, plate, wire, tubular or combinations thereof. Their size varies from few cm2 to several m2. The process in which the anodes are used determines their size, shape and coating specification.

Size and shape are determined by:

The electrochemical cell or installation wherein the anodes are used.

The process conditions, such as electrolyte composition, temperature, current density, design life, etc.

Mechanical load of the anode.

Electrical conductivity of the base material.

Platinum is used on the surface as a primary anode material due to its excellent corrosion resistance under anodic conditions coupled with its ability to pass current in all electrolytes without forming an insulating film. The corrosion resistance of platinum manifests itself in its low consumption rate. Its major disadvantage is its high cost, thus making it clear that it is most desirable to use as little platinum as is necessary. In order to restrict the amount of platinum used and to maintain an anode of some structural integrity, it is necessary to use some type of substrate material.

Included among the properties of the substrate should be the ability to form an insulating film under anodic conditions, such that a dimensionally stable anode is obtained, good conductivity, and relatively low cost. As there are no individual materials which fully meet all of these criteria, it is necessary in most cases to use a combination of materials.

To properly manufacture an anode material which is composed of multilayers, sophisticated metallurgical processing techniques must be employed to insure integral contact between the metal layers. The ideal method of insuring this contact is by providing a metallurgical bond. All of TNTI's clad materials are manufactured through very tightly controlled metallurgical coprocessing techniques yielding complete metallurgical bonds.


Platinized anodes are having high current resistance

Economical ( due to minimum platinum requirement )

Platinised anode 's dimensional stability is very high )

Platinized anodes are having better conduction properties platinized titanium mesh anode

for Mixed Metal Oxide Coated Anodes ( MMO Anode )

Since its inception, TNTI has been dedicated to improving product quality and to developing new products using advanced metallurgical technology to provide long lasting cost effective anode materials. Today, TNTI is recognized throughout the cathodic protection industry for its product quality and excellent service.

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