Evaluation of the inhibitive effect of Diospyros kaki (Persimmon) leaves extract on St37 steel corrosion in acid medium

Husnu Gerengi, Ilyas Uygur, Moses Solomon, Mesut Yildiz, Haydar Goksu

Research output: Journal PublicationArticlepeer-review

56 Citations (Scopus)

Abstract

A study was conducted to assess the inhibitive effect of Diospyros kaki leaves extract on St37 steel corrosion in 0.1 M HCl solution. Electrochemical (PDP, EIS, DEIS), chemical, and surface morphological screening (SEM, EDS, FTIR) techniques were used in the study. Results show that D. kaki leaves extract is an excellent inhibitor for St37 steel in HCl solution. Maximum inhibition efficiency of 91% was afforded by the highest studied concentration of the extract from PDP measurements. PDP results reveal that the extract components act principally as cathodic type inhibitor suppressing the reduction of hydrogen ions in the cathodic region of the metal. DEIS results show that the studied systems exhibit non-stationary character and the adsorbed extract components were stable particularly at long exposure time. SEM, EDAX, and FTIR results support experimental results that components of D. kaki leaves extract were adsorbed on St37 surface.

Original languageEnglish
Pages (from-to)57-66
Number of pages10
JournalSustainable Chemistry and Pharmacy
Volume4
DOIs
Publication statusPublished - 1 Dec 2016
Externally publishedYes

Keywords

  • Acid corrosion
  • Adsorption
  • Corrosion inhibition
  • D. kaki leaves extract
  • St37 steel

ASJC Scopus subject areas

  • Environmental Chemistry
  • Pollution
  • Pharmaceutical Science
  • Management, Monitoring, Policy and Law

Fingerprint

Dive into the research topics of 'Evaluation of the inhibitive effect of Diospyros kaki (Persimmon) leaves extract on St37 steel corrosion in acid medium'. Together they form a unique fingerprint.

Cite this