Platinized Titanium & Niobium Anode Dimensionally Stable Anode

Platinum titanium cylindrical mesh commonly used in electrolysis, electroplating, gold plating applications. Platinised anodes are manufactured with a titanium or niobium base structure, in the form of either sheet, expanded mesh, rod, wire or tube. These anodes and products allow efficient and precise plating of components in areas such as Electro plating, hard chrome plating and precious metal plating. The application of these anodes has reduced the process time and dramatically improved costs in a number of operations required.

Major Applications of the Platinised Titanium Anodes:-

Gold plating, Decorative chrome plating,  PCB industry, Silver plating, copper plating, instrumentation, platinum plating, electrowinning, rhodium plating, chromium plating , sensing elements, cathodic protection and hard chrome plating.

Common Laboratory Beakers are used for Laboratory plating tests, small batch plating, electrochemical production of organic & inorganic compounds and many. The common beakers are available in the sizes of 0.5, 1.0, 2.0, 3.0 & 5.0 liters by volume. Standard Platinized Titanium Anodes [PTA] and Mixed Metal Oxide coated Anodes [MMOA] are available for said glass beakers. Anodes are available in the form of expanded mesh, with hook, sheet with hook. The substrate of the electrodes are Titanium, Nickel, and Niobium based on the application.

Platinized Titanium Anode is available with the standard platinum plating layer thickness of 2.5 micron. Plating thick can be increased up to 20 micron according to the customer’s requirement. The anodes are used for the production of perchlorate and in plating bath as a insoluble anodes.

Current Output is dependent on …

1. Substrate, Catalyst & Coating Thick

2. Application & Design life

3. pH & operating Temperature

4. Conductivity of Electrolyte

Advantages:-

•         Simple cable installation

•         Easy handling and set-up

•         Anode segments are replaceable

Platinum is one of the precious metals. Platinized titanium anodes are extensively used in Electro Plating, metal finishing, metal recovery processes. They have successfully replaced lead anodes in electroplating applications due to their lower consumption, dimensional accuracy, ability to form precise deposit thicknesses on desired geometric shapes, predictable plating chemistry and ease of maintenance. These anodes can be designed and formed with various geometries based upon the parts to be electroplated.

For high-quality electroplating anodes, manufactured to customer specifications and design, Electroplating is used to coat certain metals with a thin layer of a pure metal, like copper, chromium, platinum, nickel, palladium silver, zinc, gold or any of several alloys. During the process, an electric current passes through a solution known as an electrolyte. The composition of the electrolyte depends on the desired coating. The item being electroplated (cathode) is immersed into the electrolyte solution, as is the plating anode.

Tiaano manufacturing and supplying Platinised Titanium Mesh Anode (with frame, electrical connector and Hook) and custom made anodes for Electro plating Application. We have the facility to do platinum plating 0.5 micron to 20 micron thick by the process of Electro deposition. We also do replating of existing titanium mesh.

Tiaano offer Platinum plated Anode and cathodes (Electrodes) for various research and developments. Many article provides a history of platinised anodes by reviewing innovations in the chlor-alkali industry, electroplating, electro galvanizing, electro winning etc.... These anodes are attractive for numerous reasons (e.g., long life and educed energy consumption), but they must still overcome the hurdle of cost to gain wider acceptance for applications in the various process industries.

Chemical Behavior of Platinum and Titanium:-

Platinum is preferred on an anode's outer surface because it is highly resistant to corrosion and can ensure current flow in most electrolyte media without leading to the formation of an insulating layer on itself. Because it doesn’t corrode, it doesn’t produce corrosion products and hence the consumption rate is very low.

Platinum is inert in fused salts and acids, whereas it is dissolved in aqua regia. There is no risk of hydrogen embrittlement. It is one of the few rare metals that perfectly resist chlorides of seawater.

Titanium shows reasonably good resistance to a marine environment (seawater in particular). It does not react with concentrated (80%) solutions of metallic chlorides. However, it is susceptible to attack by hydrofluoric acid (HF) and hot hydrochloric acid (HCl) of higher concentrations. Even hydrogen peroxide and hot nitric acid can attack titanium. Oxidizing agents normally do not attack titanium because it readily forms a protective oxide coating. However, non-oxidizing substances such as sulfuric acid (above 5% concentration) and phosphoric acid (above 30%) can attack titanium. From a hydrogen embrittlement point of view, titanium fares better than tantalum as an anode material.

Advantages of Platinized Titanium Anodes:-

Platinum has the advantages of electro chemical inertness, mechanical strength, workability and favorable electrical conductivity. However, it is prohibitively expensive. Development of platinum on titanium and platinum on tantalum (plated) materials has opened up the feasibility of using these for anode materials for Electro Plating, metal finishing and cathodic protection systems in critical applications.

Platinum is the most effective metal for any electro chemical or electrolysis process due to its current conducting property. Platinum being the most expensive material rational utilization of Platinum for the greater benefit ensures economical solution. Platinized Anodes is none but a rational utilization of platinum by coating or plating limited quantity on to titanium to achieve the same result as using platinum metal.

Platinized Titanium anodes can be operated at very high current densities. 75Amps per dm² are typical. All of the current flows from the platinum plated / coated portion of the anode surface. However, if this coating is damaged, current may also flow from the substrate material resulting in its premature failure. The primary limitation of platinized anodes is that the oxide film on the substrate can break down if excessive anode-to-electrolyte voltages are encountered. The practical limit for platinized titanium is 12 volts.

Specifications of Platinized Titanium Anode:-

Platinum is a precious metal having very good physical and chemical properties such as high corrosion resistance, thermal conductivity and catalytic nature. The Platinum Coating delivers excellent performance and a long service life. The life time of platinised titanium anodes is in particular dependent on the work medium (electrolyte) and the anodic current (specific current density). According to experience, it is approx. 1-4 g platinum per one million ampere hours in fluoride-free chromium baths. In case of specific current densities of over 75 A/dm2 or upon the use of baths containing fluoride, we recommend the use of platinised niobium anodes.

Possible applications of Platinised Titanium Anodes / Electrodes for Electroplating, Electrowinning, Electro Galvanizing, Electro Floculation, Cathodic Proctection, Water Electrolysis, Electrochlorination, Electrodialysis, Sea Water Chlorination, Sewage Treatment, Chloroalkali Cells - Diaphragm / Mercury / Membrane cells, Chlorate Cells, Hydrogen Cells, Iodate cells, Bromate Cells, Per Chlorate cells, Sodium Chlorate Cells, FUEL Cells.

Properties of platinum Plating: -

Softness

Good adhesion

High plasticity

High ductility

High Purity

Electroplating anodes are used to create products in many industries. All kinds of metals can be plated in this way, including gold, silver, tin, zinc, copper, cadmium, chromium, nickel, platinum, and lead. Electroplating is very similar to electrolysis (using electricity to split up a chemical solution).

Brief overview of Electro Plating process:-

The two are then connected to an electrical current source, by connecting the positive end to the plating anode and the negative to the item being to be plated. Once current flows through the system positively charged metal ions become attracted to the negatively charged item, thereby coating the item with the desired finish.

Key Benefits of Platinized Titanium Anodes in Electroplating:-

Ø  A low consumption rate that conserves precious platinum.

Ø  Favorable dimensional stability

Ø  Corrosion resistance ensures durability with easy maintainability.

Ø  Light weight, as well as favorable current distribution in electroplating.

Ø  High resistance to corrosion

Ø  Resistance to oxidation

Ø  High electrical conductivity

Ø  Ability to act as catalyst

Ø  High chemical stability

Ø  Capability to produce an excellent finish

Platinum is typically plated on different corrosion resistant materials such as titanium (Ti), tantalum (Ta), niobium (Nb). Tiaano offer anodes as per standard and customer’s drawings and specifications.

Tiaano provides Platinum plating on Titanium in the form of sheet, expanded mesh, pipe, wire, rod and custom built as Anodes and cathodes (Electrodes) for various industrial electrolysis applications, Including Electro Plating, Electrolytic Recovery, Electro – Chemical Sensing, Electro Winning refining of metals, Electro Galvanizing, , Regeneration of Chromic Acid, Electro – dialysis, Cathodic Protection, Electrolytic production of Sodium hydro Chlorate.

Type of Platinised Titanium Anodes or Electrode we offer:-

Ø  Platinized Titanium Rod Anode

Ø  Platinised Titanium Wire Anode

Ø  Platinised Titanium Sheet / Plate Anode

Ø  Platinised Titanium Expanded Mesh Anode

Ø  Platinised Titanium Perforated anode

Ø  Platinised Titanium Basket anodes

Ø  Platinised Titanium Tube Anode

Ø  Platinised Titanium Disc anodes

Ø  Platinised Titanium Strip anodes

Ø  Platinised Titanium Slotted anodes etc…

According to the substrate material used, the platinized anodes are classified as

1.       Platinized Titanium anodes

2.       Platinized Niobium anodes

3.       Platinised zirconium anodes

4.       Platinised Tantalum anodes

Platinised titanium anodes combine the excellent electrochemical characteristics of platinum with the good corrosion qualities of titanium.  This anode is designed for Electro Plating application. They are characterised by the following features and advantages.

•          Energy saving potential

•          Low weight (in particular expanded metal anodes)

•          Long service time even at high current density

•          Dimensional stability, long durability of base material

•          Replating possible

•          Higher quality of end product

•          Application-specific design

Such anodes consist of a titanium based material in the form of expanded mesh, sheet, rod, wire, or pipe. The standard platinum layer thickness is 2 - 5 micron, in case of higher loads layer thickness of up to 20 micron. The lifetime of platinised titanium anodes is in particular dependent on the work medium (electrolyte) and the anodic current (specific current density). It should not exceed 75 A/dm2.

Platinum is widely used as electrodes in many industries, having special chemical & physical properties like high corrosion resistance, thermal conductivity and catalytic nature.  Being a very expensive metal, instead of using solid form, platinum is deposited on the surface of titanium or niobium, occasionally on molybdenum by micron level layer.

Electrodes [Anodes or Cathodes] are available with hanging hook, frame or band in the form of sheet, mesh, pipe, wire, rod and custom built.  Platinised titanium anode is used in electrolytes having no fluoride. Platinised niobium anodes are used in electrolytes having fluoride, where we need better conduction (its conductivity is three times of titanium)  and  also it is suitable for Sulphuric acid chromium plating bath operated at current density greater than 75A / dm². 

Types of Special Anode we offer - Application wise: -

Electro winning anode

Cathodic Protection (ICCP) anodes

Rhodium plating anode

Anodes for sensing elements

Chromium plating anode

Hard chrome plating anodes

Copper plating anodes

Silver Refining Anodes