Electrochem (Jul 2022)

Comparative Study of Corrosion Inhibition Efficacy of Alkaloid Extract of <i>Artemesia vulgaris</i> and <i>Solanum tuberosum</i> in Mild Steel Samples in 1 M Sulphuric Acid

  • Davilal Parajuli,
  • Srijana Sharma,
  • Hari Bhakta Oli,
  • Dilip Singh Bohara,
  • Deval Prasad Bhattarai,
  • Arjun Prasad Tiwari,
  • Amar Prasad Yadav

DOI
https://doi.org/10.3390/electrochem3030029
Journal volume & issue
Vol. 3, no. 3
pp. 416 – 433

Abstract

Read online

Two different types of alkaloids are successfully extracted from two plants Artemisia vulgaris (AV) and Solanum tuberosum (ST) in the laboratory and used as corrosion inhibitors for mild steel samples. The corrosion inhibition potential of these alkaloids is determined by weight loss and potentiodynamic polarization measurement methods. Based on the weight loss measurement study of a sample immersed for 6 h in 1000 ppm inhibitor solution of AV and ST alkaloids, the corrosion inhibition efficiency is found to be 92.58% and 90.79%, respectively. The potentiodynamic polarization measurement shows 88.06% and 83.22% corrosion inhibition efficiency for AV and ST alkaloids, respectively, for the sample immersed for 1 h in 1000 ppm inhibitor solution. These promising efficiency and suitable immersion time effect can lead to the development of good green inhibitors.

Keywords