Precious Metal Oxide Coating

Tiaano offers platinum group of precious metal oxide coatings - with long lifetimes and low operating potentials for service in chlor-alkali membrane cells.

Tiaano’s coating systems are based on a range of nano-structured multi-layers of metal oxides; these include Ru, Ir, Pt, Pd and Ti - offer increased performance over conventional materials by maximizing catalytic phases and surface area interactions. By adding doping agents to the catalysts, we are able to make them more selective and further improve performance.

The developed coating technology allows for very thin layers to be deposited increasing cost effectiveness. The MMO Coated substrate will undergo multiple thermal treatments at elevated temperatures. This process will achieve very good bonding properties between the mixed metal oxide coating and the substrate.

Features of Anode coating

  •  Very low oxygen coating with slightly higher chlorate inefficiency.
  •  Suitable for all cell technologies like UHDE, CEC, Asahi Glass, Lurgi, ELTECH & etc.
  •  Suitable for current densities in excess of even 9 kA/m2.
  •  Excellent stability of the MMO coated titanium anode; improving the products purity and maintenance costs.
  •  Substantially reduced energy consumption.
  •  Improved product quality & Exhibit long life.
  •  Operate at low voltage.
  •  Minimize energy consuming side reactions.
  •  Improve tolerance of operational upsets.

Features of Cathode Coating

  •  Tiaano provides cathode coating for chlorine membrane cells. This platinum based electro catalyst delivers the lowest hydrogen over-potential for maximum electrical savings.
  •  It is expected to give voltage savings of 280 mV vs. bare nickel cathodes. This translates to power consumption savings of 200 DC kW Hr. / MT of chlorine. As current density increases, savings increase.
  •  Tiaano’s Cathode Coating also provides excellent wear resistance and long life through a permanent coating which causes no caustic contamination as compared to competitive coatings.
  •  Its performance is limited only by the impurities in the caustic circulation system. Tiaano’s coatings are more resistant than other cathode coatings to iron fouling.
  •  Tiaano’s Cathode Coating can be applied over a variety of substrates including mesh, louvers, sheet, punched plate and screen and in all chlorine membrane technologies.
UHDE BM2.7 in Coating
Eltech Cathode