One-step ionothermal synthesis of oriented molecular sieve corrosion-resistant coatings

In-situ synthesis of oriented molecular sieve films remains a great challenge. Random oriented films are mostly obtained by this simplest synthesis strategy. Here, we demonstrate that the oriented molecular sieve films as corrosion-resistant coatings can be one-step ionothermally formed by interface chemistry of substrate-solution. In detail, an in-plane oriented AEL molecular sieve film was generated by adjusting the interfacial chemical reaction between substrate and the synthetic solution for appropriate nuclei density. Moreover, the corrosion-resistant performance of oriented film coated Al sample is two orders of magnitude higher than that of random oriented film coated one, reflecting a much more passive corrosion behavior.