Praseodymium-decorated graphene oxide as a corrosion inhibitor in acidic media for the magnesium AZ31 alloy

Palaniappan, N, Cole, I, Caballero-Briones, F, Balasubaramanian, K and Lal, C 2018, 'Praseodymium-decorated graphene oxide as a corrosion inhibitor in acidic media for the magnesium AZ31 alloy', RSC Advances, vol. 8, no. 60, pp. 34275-34286.


Document type: Journal Article
Collection: Journal Articles

Title Praseodymium-decorated graphene oxide as a corrosion inhibitor in acidic media for the magnesium AZ31 alloy
Author(s) Palaniappan, N
Cole, I
Caballero-Briones, F
Balasubaramanian, K
Lal, C
Year 2018
Journal name RSC Advances
Volume number 8
Issue number 60
Start page 34275
End page 34286
Total pages 12
Publisher Royal Society of Chemistry
Abstract In the present work, Pr-decorated graphene oxide was synthesized and tested as a corrosion barrier layer in acidic media for the magnesium AZ31 alloy. The morphology, composition and structure of Pr-decorated graphene oxide sheets were characterized via HRTEM, FESEM, Raman, XRD, DLS, UV and FTIR studies. The corrosion inhibition efficiency on the alloy surface was monitored via microstructural and electrochemical methods. The results indicate that Pr-decorated graphene oxide provides improved protection for the Mg AZ31 alloy compared to conventional epoxy coatings. The proposed mechanism arises from a combination of the barrier activities of the composite, GO + Pr, and the epoxy coating on the Mg alloy in acidic media.
Subject Chemical Sciences not elsewhere classified
DOI - identifier 10.1039/c8ra05118f
Copyright notice This journal is © The Royal Society of Chemistry 2018
ISSN 2046-2069
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