期刊
MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION
卷 73, 期 2, 页码 259-271出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/maco.202112742
关键词
acid medium; computational analysis; corrosion; electrochemical studies; mild steel
资金
- [RSP-2021/345]
This study aimed to explore the anticorrosive behavior of AHGE on mild steel corrosion in 1 M phosphoric acid solution through weight loss technique, electrochemical studies, and computational analysis. The results showed that AHGE exhibited high inhibition efficiency and its adsorption on MS followed specific adsorption isotherms models.
The present investigation was aimed at exploring the anticorrosive behavior of bio-organic Auraucaria heterophylla gum exudate (AHGE) on mild steel (MS) corrosion in 1 M phosphoric acid solution by weight loss technique, electrochemical studies, and computational analysis. Additionally, the performance was analyzed by morphological and quantum chemical analyses. The weight loss data revealed that AHGE showed 80% of inhibition efficiency at 303 K temperature. Inhibitor adsorption on MS was in line with Langmuir and Tempkin adsorption isotherms. Potentiodynamic studies showed that the investigated AHGE performed as a mixed-type inhibitor. Electrochemical parameters like charge transfer resistance, double-layer capacitance, and inhibition efficiency were determined and presented. Results obtained through computational analysis, scanning electron microscopy/energy dispersive X-ray analysis, and atomic force microscopy studies were well supported by the inhibitive potential of AHGE.
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