Polyaniline and polypyrrole/TiO2 nanocomposite coatings on Al1050: electrosynthesis, characterization and their corrosion protection ability in saltwater media

Abstract

PPy (PE = 94.9 %) and uncoated Al1050 electrodes. These nanocomposites can be used in airplanes, space technology, automobiles, electronics, and building sectors, as well.

Characterization of PTFE Film on 316L Stainless Steel Deposited through Spin Coating and Its Anticorrosion Performance in Multi Acidic Mediums

“…Corrosion and wear performance have also been improved by the use of NiTi coating modified with ZrO 2 coatings on AISI 316 SS [22] by using a cold spray technology (a coating process in which a metal substrate is exposed to small particles (1 to 50 µm), which are accelerated by the supersonic flow of compressed gas at a high speed (300-1200 m/s)). The process is based on a combination of particle temperature, speed and size to allow spraying at the lowest possible temperature to: coat the cobalt chromium (Co-Cr) alloy L605 powders in order to improve the corrosion resistance and the strength of 316L SS [23]; Pd-Ni/Pd-Cu double coating on the 316SS surface by electroplating [24]; nanocomposite coatings of polychlorotrifluoroethylene (PCTFE) particles with nickel-tungsten (Ni-W) coatings through the electro deposition procedure [25]; polymerized vinyltrimethoxysilane (PVTMS) coating with henna's aqueous solution forming a PVTMS/henna hybrid sol-gel for biomedical applications [26]; polyaniline-graphene nanocomposite coatings electrodeposited on 310 SS by cyclic voltammetry technique [27]; and synthesis of polyaniline-montmorrilonite nanocomposite coatings deposited on 316L SS by electrodeposition [28,29].…”

Electrochemical Synthesis and Corrosion Behaviour of Poly(o–anisidine)‐TiO2 Nanocomposite on ZnNi‐Plated Carbon Steel

“…The presence of 0.03% Ti in the obtained values indicates that TiO 2 is present in the nanocomposite structure. Ates et al found that the amount of Ti in the polypyrrole-TiO 2 [21] and Poly (N-methylpyrrole) TiO 2 [29] nanocomposites synthesized on the aluminum surface in oxalic acid solution were 0.07% and 0.04%, respectively. Figure 7 shows Nyquist diagrams for CS, CS/ZnNi, CS/ZnNi/ POA and CS/ZnNi/POA-TiO 2 electrodes after 2 and 96 h of exposure time in 3.5% NaCl corrosive solution.…”

“…For instance, Jafari et al [20] stated that POA-TiO 2 nanocomposite synthesized on the aluminum surface in 0.5 M oxalic acid solution significantly reduced the corrosion rate of aluminum. Ates et al [21] coated polyaniline-TiO 2 and polypyrrole-TiO 2 nanocomposites on the aluminum surface and found that protective properties of the nanocomposites were better than polymer coatings. Radhakrishnan et al [22] synthesized polyaniline-TiO 2 nanocomposite and found that the presence of nano TiO 2 had an important role in corrosion prevention.…”

Highly efficient polypyrrole sensitized TiO 2 nanotube films for photocathodic protection of Q235 carbon steel

“…The peak observed at 1457 cm −1 is related to the antisymmetric stretching vibration in the PPy ring. The bands at 1200 and 790 cm −1 reveal the presence of C C. The peak at 1123 cm −1 can be assigned to the C H in the plane vibration band [24,33].…”