Triazole-modified chitosan: a biomacromolecule as a new environmentally benign corrosion inhibitor for carbon steel in a hydrochloric acid solution.

1 It can be observed that the diameter of the Nyquist semicircles shows an increasing trend with an increase in the concentration of CS–AMT which suggests that the inhibitor molecules get adsorbed on the metal surface leading to the formation of a protective film. 35,55 The CS–AMT molecules adsorb on the surface of carbon steel and block the sites which are available for corrosive dissolution whereby causing an increment in the R p values which is correlated with corrosion inhibitive performance.

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3b show that the η % exhibits a decreasing trend with the rise in temperature indicating that the inhibitor molecules undergo desorption from the metal surface.

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