Poster presentation: "Cysteine and modified cysteine as green inhibitors of aluminum alloy corrosion"
Аутори
Kovačina, JovankaMarunkić, Dunja D.
Simović, Anđela R.
Radojković, Bojana M.
Jegdić, Bore
Pavlović, Miroslav M.
Marinković, Aleksandar D.
Конференцијски прилог (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
In its pure form, aluminum is easy to process and has a high level of corrosion resistance. However, due to its low strength the possibility of application of pure aluminum is reduced. When alloyed, aluminum alloys are widely used material in construction, different industries, airspace and military. Commercial 7000 series aluminum alloys have zinc as the main alloying element, followed by magnesium. This 7000 aluminum series offers a very high strength when heat-treated, which comes from its composition. The life time of these alloys is reduced due to corrosion damage. It is known that corrosion directly or indirectly affects materials, human health and safety, and it causes global economic and environmental problem. The use of inhibitors in corrosion protection is the simplest, most economical and most efficient approach that is routinely used to ‘reduce’ this problem in industry. The most widely used inorganic inhibitors, such as chromates, are not safe, causing health and safety pr...oblems due to their toxicity. Organic compounds have increased interest of the scientific community as potential inhibitors in exchange for the most commonly used. The aim of this study was to investigate new green, eco-friendly inhibitors from the group of amino acid and their combination with lanthanides. For the purposes of this investigation, cerium-cysteine complex was synthesized and analyzed by Fourier-Transform Infrared spectroscopy (FTIR), Scanning Electron Microscopy with Energy Dispersive Spectroscopy (SEM / EDS), Potentiostatic Electrochemical Impedance Spectroscopy (PEIS) and Linear Sweep Voltammetry (LSV) analyses. SEM/EDS was used for morphological analysis and to determine the composition of the aluminum alloy on which the electrochemical tests have been performed. Electrochemical measurements (PEIS, LSV) were erformed in order to test the inhibitory efficacy in 0.1M NaCl at room temperature. Different concentrations of cysteine and Ce-cysteine complex were examined to optimize the process. The adsorption of the inhibitor follows the Langmuir isotherm, and based on the electrochemical results and calculated thermodynamic potential (Gibbs free energy) it can be concluded that both cysteine and cerium-cysteine complex are mixed type of inhibitors. It can be concluded that both cysteine and Ce-cysteine complex inhibitors satisfactory inhibition effect on aluminum alloy corrosion.
Кључне речи:
cysteine / Ce-cysteine complex / corrosion / corrosion inhibitor / aluminum alloyИзвор:
2021Финансирање / пројекти:
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200026 (Универзитет у Београду, Институт за хемију, технологију и металургију - ИХТМ) (RS-MESTD-inst-2020-200026)
Напомена:
- Abstract: https://cer.ihtm.bg.ac.rs/handle/5448
- Poster presented at: VII International congress Engineering, environment and materials in process industry EEM2021, March 17-19, 2021 Jahorina, Republic of Serbia, Bosnia and Herzegovina
Повезане информације:
- Повезани садржај
https://cer.ihtm.bg.ac.rs/handle/123456789/5448
Колекције
Институција/група
IHTMTY - CONF AU - Kovačina, Jovanka AU - Marunkić, Dunja D. AU - Simović, Anđela R. AU - Radojković, Bojana M. AU - Jegdić, Bore AU - Pavlović, Miroslav M. AU - Marinković, Aleksandar D. PY - 2021 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/7065 AB - In its pure form, aluminum is easy to process and has a high level of corrosion resistance. However, due to its low strength the possibility of application of pure aluminum is reduced. When alloyed, aluminum alloys are widely used material in construction, different industries, airspace and military. Commercial 7000 series aluminum alloys have zinc as the main alloying element, followed by magnesium. This 7000 aluminum series offers a very high strength when heat-treated, which comes from its composition. The life time of these alloys is reduced due to corrosion damage. It is known that corrosion directly or indirectly affects materials, human health and safety, and it causes global economic and environmental problem. The use of inhibitors in corrosion protection is the simplest, most economical and most efficient approach that is routinely used to ‘reduce’ this problem in industry. The most widely used inorganic inhibitors, such as chromates, are not safe, causing health and safety problems due to their toxicity. Organic compounds have increased interest of the scientific community as potential inhibitors in exchange for the most commonly used. The aim of this study was to investigate new green, eco-friendly inhibitors from the group of amino acid and their combination with lanthanides. For the purposes of this investigation, cerium-cysteine complex was synthesized and analyzed by Fourier-Transform Infrared spectroscopy (FTIR), Scanning Electron Microscopy with Energy Dispersive Spectroscopy (SEM / EDS), Potentiostatic Electrochemical Impedance Spectroscopy (PEIS) and Linear Sweep Voltammetry (LSV) analyses. SEM/EDS was used for morphological analysis and to determine the composition of the aluminum alloy on which the electrochemical tests have been performed. Electrochemical measurements (PEIS, LSV) were erformed in order to test the inhibitory efficacy in 0.1M NaCl at room temperature. Different concentrations of cysteine and Ce-cysteine complex were examined to optimize the process. The adsorption of the inhibitor follows the Langmuir isotherm, and based on the electrochemical results and calculated thermodynamic potential (Gibbs free energy) it can be concluded that both cysteine and cerium-cysteine complex are mixed type of inhibitors. It can be concluded that both cysteine and Ce-cysteine complex inhibitors satisfactory inhibition effect on aluminum alloy corrosion. T1 - Poster presentation: "Cysteine and modified cysteine as green inhibitors of aluminum alloy corrosion" UR - https://hdl.handle.net/21.15107/rcub_cer_5448 ER -
@conference{ author = "Kovačina, Jovanka and Marunkić, Dunja D. and Simović, Anđela R. and Radojković, Bojana M. and Jegdić, Bore and Pavlović, Miroslav M. and Marinković, Aleksandar D.", year = "2021", abstract = "In its pure form, aluminum is easy to process and has a high level of corrosion resistance. However, due to its low strength the possibility of application of pure aluminum is reduced. When alloyed, aluminum alloys are widely used material in construction, different industries, airspace and military. Commercial 7000 series aluminum alloys have zinc as the main alloying element, followed by magnesium. This 7000 aluminum series offers a very high strength when heat-treated, which comes from its composition. The life time of these alloys is reduced due to corrosion damage. It is known that corrosion directly or indirectly affects materials, human health and safety, and it causes global economic and environmental problem. The use of inhibitors in corrosion protection is the simplest, most economical and most efficient approach that is routinely used to ‘reduce’ this problem in industry. The most widely used inorganic inhibitors, such as chromates, are not safe, causing health and safety problems due to their toxicity. Organic compounds have increased interest of the scientific community as potential inhibitors in exchange for the most commonly used. The aim of this study was to investigate new green, eco-friendly inhibitors from the group of amino acid and their combination with lanthanides. For the purposes of this investigation, cerium-cysteine complex was synthesized and analyzed by Fourier-Transform Infrared spectroscopy (FTIR), Scanning Electron Microscopy with Energy Dispersive Spectroscopy (SEM / EDS), Potentiostatic Electrochemical Impedance Spectroscopy (PEIS) and Linear Sweep Voltammetry (LSV) analyses. SEM/EDS was used for morphological analysis and to determine the composition of the aluminum alloy on which the electrochemical tests have been performed. Electrochemical measurements (PEIS, LSV) were erformed in order to test the inhibitory efficacy in 0.1M NaCl at room temperature. Different concentrations of cysteine and Ce-cysteine complex were examined to optimize the process. The adsorption of the inhibitor follows the Langmuir isotherm, and based on the electrochemical results and calculated thermodynamic potential (Gibbs free energy) it can be concluded that both cysteine and cerium-cysteine complex are mixed type of inhibitors. It can be concluded that both cysteine and Ce-cysteine complex inhibitors satisfactory inhibition effect on aluminum alloy corrosion.", title = "Poster presentation: "Cysteine and modified cysteine as green inhibitors of aluminum alloy corrosion"", url = "https://hdl.handle.net/21.15107/rcub_cer_5448" }
Kovačina, J., Marunkić, D. D., Simović, A. R., Radojković, B. M., Jegdić, B., Pavlović, M. M.,& Marinković, A. D.. (2021). Poster presentation: "Cysteine and modified cysteine as green inhibitors of aluminum alloy corrosion". . https://hdl.handle.net/21.15107/rcub_cer_5448
Kovačina J, Marunkić DD, Simović AR, Radojković BM, Jegdić B, Pavlović MM, Marinković AD. Poster presentation: "Cysteine and modified cysteine as green inhibitors of aluminum alloy corrosion". 2021;. https://hdl.handle.net/21.15107/rcub_cer_5448 .
Kovačina, Jovanka, Marunkić, Dunja D., Simović, Anđela R., Radojković, Bojana M., Jegdić, Bore, Pavlović, Miroslav M., Marinković, Aleksandar D., "Poster presentation: "Cysteine and modified cysteine as green inhibitors of aluminum alloy corrosion"" (2021), https://hdl.handle.net/21.15107/rcub_cer_5448 .