Effect of temperature on adsorption and corrosion inhibition characteristics of gelatin on mild steel in hydrochloric acid medium

Effect of temperature on adsorption and corrosion inhibition characteristics of gelatin on mild... Adsorption characteristics of a water-soluble bio-polymer, gelatin, on mild steel in 1-M hydrochloric acid (HCl) together with its potential corrosion resistive property in the temperature range of 20–50 °C have been evaluated. Electrochemical impedance spectroscopy reveals that when mild steel is exposed to HCl solution containing gelatin, a protective layer develops on its surface resulting in retardation of the rate of charge transfer reaction across the metal–solution interface. Potentiodynamic polarization and weight loss studies also exhibit substantial decrease in the rate of corrosion for mild steel in HCl in the presence of a low concentration of the polypeptide. Gelatin is seen to act as a mixed-type inhibitor towards corrosion of mild steel in HCl blocking both the cathodic and anodic reaction sites, and its adsorption characteristics are found to follow the Langmuir adsorption isotherm. Adsorption phenomenon may be explained involving a competitive model between physical and chemical adsorption modes. The corroded metal surface in the absence and presence of gelatin has been characterized by scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and Fourier transform-infrared (FTIR) methods. The backbone amide linkage of the polypeptide chain is thought to be responsible for the adsorption of gelatin on the mild steel surface. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Effect of temperature on adsorption and corrosion inhibition characteristics of gelatin on mild steel in hydrochloric acid medium

Loading next page...
 
/lp/springer_journal/effect-of-temperature-on-adsorption-and-corrosion-inhibition-K0B0Gv92Ct
Publisher
Springer Netherlands
Copyright
Copyright © 2015 by Springer Science+Business Media Dordrecht
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1007/s11164-015-2295-8
Publisher site
See Article on Publisher Site

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 12 million articles from more than
10,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Unlimited reading

Read as many articles as you need. Full articles with original layout, charts and figures. Read online, from anywhere.

Stay up to date

Keep up with your field with Personalized Recommendations and Follow Journals to get automatic updates.

Organize your research

It’s easy to organize your research with our built-in tools.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

Monthly Plan

  • Read unlimited articles
  • Personalized recommendations
  • No expiration
  • Print 20 pages per month
  • 20% off on PDF purchases
  • Organize your research
  • Get updates on your journals and topic searches

$49/month

Start Free Trial

14-day Free Trial

Best Deal — 39% off

Annual Plan

  • All the features of the Professional Plan, but for 39% off!
  • Billed annually
  • No expiration
  • For the normal price of 10 articles elsewhere, you get one full year of unlimited access to articles.

$588

$360/year

billed annually
Start Free Trial

14-day Free Trial