Neza, Ezekiel and Ayoola, A. A. and Babalola, Rasheed and Durodola, Bamidele (2023) Adsorption of Calcium Particles on A36 Mild Steel and its Thermodynamic Parameters. Portugaliae Electrochimica Acta, 41. pp. 93-100.
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Abstract
Adsorption behavior of Ca particles obtained from SS, PS and ES calcination, as well as its Td parameters, during A36 MS coating via phosphating process, was investigated. A36 MS coupons surfaces were coated with phosphates and varied C of Ca particles (from 1 to 2.5 g/dm3), at a T of 60 and 80 ºC. Ca particles (as inhibitor) adsorption onto the MS surface obeyed Freundlich’s isotherm, with R2 values around 1. Kads and Td parameters, such as ΔG, ΔH and ΔS, were also determined. A36 MS coated with Ca particles obtained from calcined SS gave the best A capacity, as revealed in terms of Kads, ΔG and ΔS values. Higher Kads was obtained when T increased from 60 to 80 ºC. Also, Td parameters results revealed that Ca particles adsorption mechanism on MS was a more spontaneous process, at an increased T of 80 ºC.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | adsorption; Ca particles; corrosion; MS; Td. |
| Subjects: | T Technology > TN Mining engineering. Metallurgy T Technology > TP Chemical technology |
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Engineering Sciences |
| Depositing User: | Patricia Nwokealisi |
| Date Deposited: | 04 Mar 2025 15:19 |
| Last Modified: | 04 Mar 2025 15:19 |
| URI: | http://eprints.covenantuniversity.edu.ng/id/eprint/18850 |
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