Green Technology for Synthesis of Biomass Using Phoenix dactylifera for Protection of Aluminum - Mechanistic and Thermodynamic Studies

Abstract:

Corrosion is considered as one of the serious challenges that deteriorates the material properties of metals and alloys. In this research study, the inhibition of aluminum in 1M NaOH by Phoenix Dactylifera tree fiber extract was studied in the temperature range 308.15-318.15 K using the standard gravimetric technique. The performance evaluation was monitored using inhibition efficiency (% IE) and the IE increased as the concentration of Phoenix Dactylifera extract increased, reaching 82.55 % at 0.15 mg/ml . An inversely proportional relationship was found to exist between temperature and IE. The corrosion inhibitory effect was fitted with the Langmuir isotherm, with a correlation coefficient of R² ≥ 0.950. The inhibitor sorption was confirmed to be spontaneous as Gibbs free energy was reported to be negative. The effectiveness of the green corrosion inhibitor proved to be a potential solution for protection of aluminum under alkaline conditions.

• Periodical: Materials Science Forum (Volume 1059)
• Pages: 61-70
• DOI: https://doi.org/10.4028/p-144v18
• Online since: April 2022
• Authors: Rajamohan Natarajan, Fatema Said Zahir Said Al Shibli*, Khalid Saif Ali Al Reasi, Shah Md Talha Tanvir Rahman, Rajasimman Manivasagan
• Keywords: Corrosion, Efficiency, Inhibition, Materials, Metal

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