Marine corrosion protective coatings of hexagonal boron nitride thin films on stainless steel

Esam Husain, Tharangattu N. Narayanan, Jose Jaime Taha-Tijerina, Soumya Vinod, Robert Vajtai, Pulickel M. Ajayan

Research output: Contribution to journalArticle

118 Citations (Scopus)

Abstract

Recently, two-dimensional, layered materials such as graphene and hexagonal boron nitride (h-BN) have been identified as interesting materials for a range of applications. Here, we demonstrate the corrosion prevention applications of h-BN in marine coatings. The performance of h-BN/polymer hybrid coatings, applied on stainless steel, were evaluated using electrochemical techniques in simulated seawater media [marine media]. h-BN/polymer coating shows an efficient corrosion protection with a low corrosion current density of 5.14 × 10-8 A/cm2 and corrosion rate of 1.19 × 10 -3 mm/year and it is attributed to the hydrofobic, inert and dielectric nature of boron nitride. The results indicated that the stainless steel with coatings exhibited improved corrosion resistance. Electrochemical impedance spectroscopy and potentiodynamic analysis were used to propose a mechanism for the increased corrosion resistance of h-BN coatings. © 2013 American Chemical Society.
Original languageEnglish
Pages (from-to)4129-4135
Number of pages7
JournalACS Applied Materials and Interfaces
DOIs
Publication statusPublished - 22 May 2013
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

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