Al-Pd alloy formation by aluminium underpotential deposition onto palladium from chloroaluminate melt
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The possibility of electrochemical underpotential deposition of aluminium onto palladium from equimolar AlCl3+NaCl melts at temperatures between 200 ° and 300 °C was investigated. Electrochemical techniques used were cyclic voltammetry, chronoamperometry, potentiodynamic polarization and open circuit measurements. The results were analyzed by SEM, EDX and XRD. It was found that аluminium deposits underpotentially onto palladium at around 0.200 V vs. Al from the chloroaluminate melt used. It was established that under the given conditions, Al underpotential deposition onto the palladium substrate can result in AlPd and Al3Pd4 alloy synthesis by solid-state interdiffusion. The surface alloys synthetized are well adhering, microcrystalline deposits, having highly developed surface area suitable for applications such as hydrogen purification filters.
Keywords:
Aluminium alloys / electrodeposition / intermetallics / solid-state interdiffusion / X-ray diffraction (XRD)Source:
International Journal of Electrochemical Science, 2021, 16, 1, 210663-Publisher:
- Belgrade : ESG
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IHTMTY - JOUR AU - Vukićević, Nataša AU - Cvetković, Vesna S. AU - Jovićević, Niko AU - Jovićević, Jovan N. PY - 2021 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/4679 AB - The possibility of electrochemical underpotential deposition of aluminium onto palladium from equimolar AlCl3+NaCl melts at temperatures between 200 ° and 300 °C was investigated. Electrochemical techniques used were cyclic voltammetry, chronoamperometry, potentiodynamic polarization and open circuit measurements. The results were analyzed by SEM, EDX and XRD. It was found that аluminium deposits underpotentially onto palladium at around 0.200 V vs. Al from the chloroaluminate melt used. It was established that under the given conditions, Al underpotential deposition onto the palladium substrate can result in AlPd and Al3Pd4 alloy synthesis by solid-state interdiffusion. The surface alloys synthetized are well adhering, microcrystalline deposits, having highly developed surface area suitable for applications such as hydrogen purification filters. PB - Belgrade : ESG T2 - International Journal of Electrochemical Science T1 - Al-Pd alloy formation by aluminium underpotential deposition onto palladium from chloroaluminate melt VL - 16 IS - 1 SP - 210663 DO - 10.20964/2021.06.62 ER -
@article{ author = "Vukićević, Nataša and Cvetković, Vesna S. and Jovićević, Niko and Jovićević, Jovan N.", year = "2021", abstract = "The possibility of electrochemical underpotential deposition of aluminium onto palladium from equimolar AlCl3+NaCl melts at temperatures between 200 ° and 300 °C was investigated. Electrochemical techniques used were cyclic voltammetry, chronoamperometry, potentiodynamic polarization and open circuit measurements. The results were analyzed by SEM, EDX and XRD. It was found that аluminium deposits underpotentially onto palladium at around 0.200 V vs. Al from the chloroaluminate melt used. It was established that under the given conditions, Al underpotential deposition onto the palladium substrate can result in AlPd and Al3Pd4 alloy synthesis by solid-state interdiffusion. The surface alloys synthetized are well adhering, microcrystalline deposits, having highly developed surface area suitable for applications such as hydrogen purification filters.", publisher = "Belgrade : ESG", journal = "International Journal of Electrochemical Science", title = "Al-Pd alloy formation by aluminium underpotential deposition onto palladium from chloroaluminate melt", volume = "16", number = "1", pages = "210663", doi = "10.20964/2021.06.62" }
Vukićević, N., Cvetković, V. S., Jovićević, N.,& Jovićević, J. N.. (2021). Al-Pd alloy formation by aluminium underpotential deposition onto palladium from chloroaluminate melt. in International Journal of Electrochemical Science Belgrade : ESG., 16(1), 210663. https://doi.org/10.20964/2021.06.62
Vukićević N, Cvetković VS, Jovićević N, Jovićević JN. Al-Pd alloy formation by aluminium underpotential deposition onto palladium from chloroaluminate melt. in International Journal of Electrochemical Science. 2021;16(1):210663. doi:10.20964/2021.06.62 .
Vukićević, Nataša, Cvetković, Vesna S., Jovićević, Niko, Jovićević, Jovan N., "Al-Pd alloy formation by aluminium underpotential deposition onto palladium from chloroaluminate melt" in International Journal of Electrochemical Science, 16, no. 1 (2021):210663, https://doi.org/10.20964/2021.06.62 . .