This review is merely designed to throw light on the cutting-edge conjugated nanocomposites based on conjugated or conducting polymers and appropriate nanofillers. An important aspect of the conjugated nanocomposites has been observed in the anticorrosion of metals or metallic substrates. Particularly, including carbon nanoparticles (fullerene, graphene, and carbon nanotube) and inorganic nano-additives to the conjugated matrices have enhanced the physical features (morphology, electrical conductivity, mechanical stability, adhesion, and barrier properties) as well as corrosion resistance. To access the anti-corrosion potential, the conjugated nanocomposites have been coated on metal substrates using facile techniques of solution, spraying, dipping, and others. Accordingly, competent anti-corrosion conjugated nanocomposites have found potential for energy or electronic devices, engineering structures, and so on.

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