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Jalab R, Ali AB, Khaled M, Abouseada M, AlKhalil S, Al-Suwaidi A, Hamze S, Hussein IA. Novel Polyepoxysuccinic Acid-Grafted Polyacrylamide as a Green Corrosion Inhibitor for Carbon Steel in Acidic Solution. ACS OMEGA 2023; 8:16673-16686. [PMID: 37214734 PMCID: PMC10193551 DOI: 10.1021/acsomega.2c07607] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 01/25/2023] [Indexed: 05/24/2023]
Abstract
Utilizing green corrosion inhibitors has been classified among the most efficient and economical mitigation practices against metallic degradation and failure. This study aims to integrate the features of green and complementary properties of polyepoxysuccinic acid (PESA) and polyacrylamide (PAM) for steel corrosion inhibition. A novel PESA-grafted-PAM (PESAPAM) has been first-ever synthesized in this research study and deployed as a corrosion inhibitor for C-steel in 1.0 M HCl solution. Eco-toxicity prediction confirmed the environmentally friendly properties acquired by the synthesized inhibitor. Electrochemical, kinetics, and surface microscopic studies were carried out to gain a holistic view of C-steel corrosion behavior with the PESAPAM. Furthermore, the performance of PESAPAM was compared with that of the pure PESA under the same testing conditions. Results revealed predominant inhibitive properties of PESAPAM with an inhibition efficiency (IE) reaching 90% at 500 mg·L-1 at 25 °C. Grafting PAM onto the PESA chain showed an overall performance improvement of 109% from IE% of 43 to 90%. Electrochemical measurements revealed a charge transfer-controlled corrosion mechanism and the formation of a thick double layer on the steel surface. The potentiodynamic study classified PESAPAM as a mixed-type inhibitor. Furthermore, the investigation of C-steel corrosion kinetics with the presence of PESAPAM predicted an activation energy of 85 kJ·mol-1, correlated with a physical adsorption behavior. Finally, performed scanning electron microscopy and energy-dispersive X-ray analyses confirmed the adsorption of PESA and PESAPAM, with superior coverage of PESAPAM onto the steel surface.
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Affiliation(s)
- Rem Jalab
- Gas
Processing Center, College of Engineering, Qatar University, PO Box 2713, Doha 974, Qatar
| | - Ahmed Ben Ali
- Gas
Processing Center, College of Engineering, Qatar University, PO Box 2713, Doha 974, Qatar
| | - Mazen Khaled
- Department
of Chemistry and Earth Sciences, College of Arts and Sciences, Qatar University, PO Box 2713, Doha 974, Qatar
| | - Maha Abouseada
- Department
of Chemistry and Earth Sciences, College of Arts and Sciences, Qatar University, PO Box 2713, Doha 974, Qatar
| | - Safa AlKhalil
- Department
of Chemistry and Earth Sciences, College of Arts and Sciences, Qatar University, PO Box 2713, Doha 974, Qatar
| | - Amna Al-Suwaidi
- Chemical
Engineering Department, College of Engineering, Qatar University, PO Box 2713, Doha 974, Qatar
| | - Sali Hamze
- Chemical
Engineering Department, College of Engineering, Qatar University, PO Box 2713, Doha 974, Qatar
| | - Ibnelwaleed A. Hussein
- Gas
Processing Center, College of Engineering, Qatar University, PO Box 2713, Doha 974, Qatar
- Chemical
Engineering Department, College of Engineering, Qatar University, PO Box 2713, Doha 974, Qatar
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Arukalam IO, Ishidi EY, Obasi HC, Madu IO, Ezeani OE, Owen MM. Exploitation of natural gum exudates as green fillers in self-healing corrosion-resistant epoxy coatings. JOURNAL OF POLYMER RESEARCH 2020. [DOI: 10.1007/s10965-020-02055-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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