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Evaluation of Green Inhibition Properties of Rhus verniciflua Plant Extract
Mayakrishnan Prabakaran(마야크리쉬난 프라바카란),Seung Hyun Kim(김승현),Kyoung Jin Youn(윤경진),Yong Taek Oh(오용택),Taek Jun Lee(이택준),Gyeong Rok Yang(양경록),Min Jeong An(안민정),Kyoung Jin Lee(이경진),Sung Kyu Park(박성규),Na Youn 한국약용작물학회 2016 한국약용작물학회 학술대회논문집 Vol.2016 No.1
<i>Aster koraiensis</i> as nontoxic corrosion inhibitor for mild steel in sulfuric acid
Prabakaran, Mayakrishnan,Kim, Seung-Hyun,Mugila, Nithiyanandham,Hemapriya, Venkatesan,Parameswari, Kandasamy,Chitra, Subramanian,Chung, Ill-Min Elsevier 2017 Journal of industrial and engineering chemistry Vol.52 No.-
<P><B>Abstract</B></P> <P>Inhibition efficiency of <I>Aster koraiensis</I> leaf extract toward corrosion of mild steel in 1M H<SUB>2</SUB>SO<SUB>4</SUB> solution was investigated using weight loss, electrochemical, FT-IR, SEM, and EDX methods The individual phenolic compounds present in <I>A. koraiensis</I> extract were identified. Maximum efficiency of 90.53% was achieved at 2000ppm of the extract. The corrosion kinetic parameters determined from the polarization curves indicated that the extract acted as a mixed-type inhibitor. Adsorption of the inhibitor on the mild steel surface obeyed the Langmuir isotherm. SEM investigations confirmed the formation of inhibition layer unto the metal surface by compounds present in the extract.</P> <P><B>Highlights</B></P> <P> <UL> <LI> <I>Aster koraiensis</I> extract is a very eco-friendly corrosion inhibitor for mild steel. </LI> <LI> Adsorption of inhibitor by mild steel in 1M H<SUB>2</SUB>SO<SUB>4</SUB> obeys Langmuir isotherm model. </LI> <LI> SEM and EDX examination confirm adsorption of inhibitor unto metal surface. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>