dear sister Usha Pandey; the electrophoretic deposition (EPD) of graphene oxide (GO) onto carbon steel can be performed by GO water suspension after measuring the zeta potential of this suspension solution using a dispersion optical analyzer, for more details read the following reference;
Article Electrophoretic deposition of graphene oxide on mild carbon ...
Article Graphene Oxide Coatings Deposited on Steel Substrate Using E...
Electrophoretic deposition is an interesting electrochemical method for processing bulk and coating materials, mainly Polymer likes, graphene and CNT. Electrophoretic deposition is a two-step process by which the particles suspended in a colloid solution are collected onto a substrate. Deposition takes place in an electrochemical cell in which one of the electrodes is the substrate to be coated. When the potential is applied, the suspended coating particles are polarized and pulled toward the substrate (electrophoresis) to form a loose coating. The coating at this point is a powder agglomeration and must undergo additional processing such as sintering to secure the bonds between the particles and to the substrate.
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