Preparation and characterization of nanocontainers of corrosion inhibitor based on layered double hydroxides
Source abstract
Abstract
Abstract Nanostructured zinc aluminum and magnesium aluminum layered double hydroxide (ZnAl-LDH and MgAl-LDH) intercalated with corrosion inhibitor 2-benzothiazolylthio-succinic acid (BTSA) were prepared using co-precipitation method and characterized by infrared spectroscopy, X-ray diffraction, scanning electronic microscopy and transmission electronic microscopy. BTSA release from ZnAl(BTSA)-LDH and MgAl(BTSA)-LDH in 3 wt.% NaCl and 3 wt.% Na 2 SO 4 solution was investigated with UV–vis spectroscopy, and inhibitive action of ZnAl(BTSA)-LDH and MgAl(BTSA)-LDH on carbon steel was examined by electrochemical methods. It was shown that the formula of synthesized ZnAl(BTSA)-LDH and MgAl(BTSA)-LDH is [Zn 2.4 Al(OH) 6.8 ](BTSA) 0.43 (NO 3 ) 0.14 .4H 2 O and [Mg 2.1 Al(OH) 5.96 ](BTSA) 0.62 .1.5H 2 O, respectively. The BTSA release was dependent on the anion type in electrolyte and the BTSA release in the presence of SO 4 2 − anion was higher than that in the presence of Cl − anion. The polarization curves obtained on the carbon steel sample showed that the ZnAl(BTSA)-LDH and MgAl(BTSA)-LDH are anodic inhibitors. Inhibition efficiency is higher with ZnAl(BTSA)-LDH, at the concentration of 3 g/l, achieving approximately 97% and 88% for ZnAl(BTSA)-LDH and MgAl(BTSA)-LDH, respectively.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Layered Double Hydroxides Synthesis and Applications · Corrosion Behavior and Inhibition · Magnesium Oxide Properties and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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