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

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2017
2179.pdf (2.769Mb)
Authors
Cvetković, Vesna S.
Jovicevic, Niko
Stevanović, Jasmina
Pavlović, Miomir
Vukićević, Nataša
Stevanović, Zoran
Jovićević, Jovan N.
Article (Published version)
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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.

Keywords:
magnesium/gold alloys / underpotential deposition / magnesium nitrate melts
Source:
Metals, 2017, 7, 3
Publisher:
  • 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
[ Google Scholar ]
6
6
URI
https://cer.ihtm.bg.ac.rs/handle/123456789/2181
Collections
  • Radovi istraživača / Researchers' publications
Institution/Community
IHTM
TY  - 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 . .

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