PLATINUM PLATED TITANIUM ANODE AND TITANIUM CATHODE FOR ELECTRODIALYSIS

August 1, 2021 at 9:49 PMPlatinised

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

The platinized anode is characterized by its three outstanding effects as an electrode material:

1. It is stable, corrosion resistant and can be used in various media.

2. For the oxygen evolution reaction, the over potential is very high

3. For the hydrogen evolution reaction, the over potential is very low.

Ptanode describes the refractory metals, such as titanium and niobium, coated with purest platinum. The electro catalytic functional layers of platinum or various precious metal oxides are used throughout virtually the entire Electrodialysis System industry.

What is Electrodialysis:-

The electro-dialysis process is a combination of electrochemical process and dialysis diffusion process. Driven by an external DC electric field, the anion and cation move to the anode (Pt Anode). Cathode (Pt Cathode) respectively via the selective permeability of the ion exchange membrane. The cation will pass through the cation exchange membrane and the anion will pass through the anion exchange membrane. In the process of ion migration, if the fixed charge of the membrane is opposite to the charge of the ion. The ion will pass through; if their charges are the same, the ion is rejected, so achieves the diluted solution, concentrated solution, and purified solution.

Tiaano suggest the platinized Titanium anodes for electrodialysis system (EDR). Because of its advantages like…

Complex shapes is possible, Long lifetime, Easy maintenance,

High dimensional stability and loading capacity, Good corrosion resistance,

Low weight, Perfect current and distribution,

 Replatinizing with crediting of residual platinum etc…

platinum_plated_electrodialysis_anode

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