Magnesium-Gold Alloy Formation by Underpotential Deposition of Magnesium onto Gold from Nitrate Melts

2017
Authors
Cvetković, Vesna S.
Jovicevic, Niko
Stevanović, Jasmina

Pavlović, Miomir
Vukićević, Nataša

Stevanović, Zoran
Jovićević, Jovan N.

Article (Published version)
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Show full item recordAbstract
Magnesium underpotential deposition on gold electrodes from magnesium nitrate-ammonium nitrate melts has been investigated. Linear sweep voltammetry and potential step were used as electrochemical techniques. Scanning electron microscopy (SEM), energy dispersive spectrometry (EDS) and X-ray diffraction (XRD) were used for characterization of obtained electrode surfaces. It was observed that reduction processes of nitrate, nitrite and traces of water (when present), in the Mg underpotential range studied, proceeded simultaneously with magnesium underpotential deposition. There was no clear evidence of Mg/Au alloy formation induced by Mg UPD from the melt made from eutectic mixture [Mg(NO3)(2).6H(2)O + NH4NO3.XH2O]. However, EDS and XRD analysis showed magnesium present in the gold substrate and four different Mg/Au alloys being formed as a result of magnesium underpotential deposition and interdiffusion between Mg deposit and Au substrate from the melt made of a nonaqueous [Mg(NO3)(2) +... NH4NO3] eutectic mixture at 460 K.
Keywords:
magnesium/gold alloys / underpotential deposition / magnesium nitrate meltsSource:
Metals, 2017, 7, 3Publisher:
- MDPI
Funding / projects:
- New approach in designing materials for energy conversion and energy storage systems (RS-172060)
- Electrochemical synthesis and characterization of nanostructured functional materials for application in new technologies (RS-172046)
DOI: 10.3390/met7030095
ISSN: 2075-4701
WoS: 000397261600027
Scopus: 2-s2.0-85015813104
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IHTMTY - JOUR AU - Cvetković, Vesna S. AU - Jovicevic, Niko AU - Stevanović, Jasmina AU - Pavlović, Miomir AU - Vukićević, Nataša AU - Stevanović, Zoran AU - Jovićević, Jovan N. PY - 2017 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/2181 AB - Magnesium underpotential deposition on gold electrodes from magnesium nitrate-ammonium nitrate melts has been investigated. Linear sweep voltammetry and potential step were used as electrochemical techniques. Scanning electron microscopy (SEM), energy dispersive spectrometry (EDS) and X-ray diffraction (XRD) were used for characterization of obtained electrode surfaces. It was observed that reduction processes of nitrate, nitrite and traces of water (when present), in the Mg underpotential range studied, proceeded simultaneously with magnesium underpotential deposition. There was no clear evidence of Mg/Au alloy formation induced by Mg UPD from the melt made from eutectic mixture [Mg(NO3)(2).6H(2)O + NH4NO3.XH2O]. However, EDS and XRD analysis showed magnesium present in the gold substrate and four different Mg/Au alloys being formed as a result of magnesium underpotential deposition and interdiffusion between Mg deposit and Au substrate from the melt made of a nonaqueous [Mg(NO3)(2) + NH4NO3] eutectic mixture at 460 K. PB - MDPI T2 - Metals T1 - Magnesium-Gold Alloy Formation by Underpotential Deposition of Magnesium onto Gold from Nitrate Melts VL - 7 IS - 3 DO - 10.3390/met7030095 ER -
@article{ author = "Cvetković, Vesna S. and Jovicevic, Niko and Stevanović, Jasmina and Pavlović, Miomir and Vukićević, Nataša and Stevanović, Zoran and Jovićević, Jovan N.", year = "2017", abstract = "Magnesium underpotential deposition on gold electrodes from magnesium nitrate-ammonium nitrate melts has been investigated. Linear sweep voltammetry and potential step were used as electrochemical techniques. Scanning electron microscopy (SEM), energy dispersive spectrometry (EDS) and X-ray diffraction (XRD) were used for characterization of obtained electrode surfaces. It was observed that reduction processes of nitrate, nitrite and traces of water (when present), in the Mg underpotential range studied, proceeded simultaneously with magnesium underpotential deposition. There was no clear evidence of Mg/Au alloy formation induced by Mg UPD from the melt made from eutectic mixture [Mg(NO3)(2).6H(2)O + NH4NO3.XH2O]. However, EDS and XRD analysis showed magnesium present in the gold substrate and four different Mg/Au alloys being formed as a result of magnesium underpotential deposition and interdiffusion between Mg deposit and Au substrate from the melt made of a nonaqueous [Mg(NO3)(2) + NH4NO3] eutectic mixture at 460 K.", publisher = "MDPI", journal = "Metals", title = "Magnesium-Gold Alloy Formation by Underpotential Deposition of Magnesium onto Gold from Nitrate Melts", volume = "7", number = "3", doi = "10.3390/met7030095" }
Cvetković, V. S., Jovicevic, N., Stevanović, J., Pavlović, M., Vukićević, N., Stevanović, Z.,& Jovićević, J. N.. (2017). Magnesium-Gold Alloy Formation by Underpotential Deposition of Magnesium onto Gold from Nitrate Melts. in Metals MDPI., 7(3). https://doi.org/10.3390/met7030095
Cvetković VS, Jovicevic N, Stevanović J, Pavlović M, Vukićević N, Stevanović Z, Jovićević JN. Magnesium-Gold Alloy Formation by Underpotential Deposition of Magnesium onto Gold from Nitrate Melts. in Metals. 2017;7(3). doi:10.3390/met7030095 .
Cvetković, Vesna S., Jovicevic, Niko, Stevanović, Jasmina, Pavlović, Miomir, Vukićević, Nataša, Stevanović, Zoran, Jovićević, Jovan N., "Magnesium-Gold Alloy Formation by Underpotential Deposition of Magnesium onto Gold from Nitrate Melts" in Metals, 7, no. 3 (2017), https://doi.org/10.3390/met7030095 . .