Synthesis and Characterization of Zeolites for Anti-corrosion Application: The Effect of Precursor and Hydrothermal Treatment

Journal Article · Sat Sep 15 04:00:00 EDT 2018 · Journal of Materials Engineering and Performance

DOI:https://doi.org/10.1007/S11665-018-3602-5· OSTI ID:22860249

Rassouli, L.; Mahdavian, M. ^[1]

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1. Institute for Color Science and Technology, Department of Surface Coatings and Corrosion (Iran, Islamic Republic of)

Four different hydrothermal processes were used to synthesize NaX zeolites. The effect of the precursor, hydrothermal time and temperature on the zeolite structure was investigated in this research. The results of XRD and FESEM/EDX analysis indicated the key role of aluminum sources in the amorphous content and the structure of zeolite from non-zeolite sodium aluminum silicate hydrate to favorable NaX-faujasite. Moreover, the irregular shape of agglomerated hydrogel was changed from micro- to nano-zeolite structure via the hydrothermal process of different aluminum sources. It was found that the nano-zeolites could be formed by sodium aluminate source. In addition, the synthesized zeolite particles were examined as corrosion inhibitor reservoir, considering the effect of Si/Al ratio, particle size, and amorphous content. It was shown that there is a direct relation between crystallization and ion exchange capacity. Through monitoring the behavior of bare mild steel in sodium chloride solution containing zinc cations released from the zeolite particles, it was found that the nano-zeolite particles with low Si/Al ratio can offer the most effective corrosion inhibition.

• OSTI ID: 22860249
• Journal Information: Journal of Materials Engineering and Performance, Journal Name: Journal of Materials Engineering and Performance Journal Issue: 9 Vol. 27; ISSN 1059-9495; ISSN JMEPEG
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM SILICATES
CORROSION INHIBITORS
CORROSION PROTECTION
CRYSTALLIZATION
HYDRATES
HYDROGELS
ION EXCHANGE
PARTICLE SIZE
PRECURSOR
STEELS
SYNTHESIS
X-RAY DIFFRACTION
ZINC