Al-Cd Alloy Formation by Aluminum Underpotential Deposition from AlCl3+NaCl Melts on Cadmium Substrate

Jovićević, Niko; Cvetković, Vesna S.; Kamberović, Željko; Jovićević, Jovan N.

doi:10.1007/s11663-012-9750-3

Cited by 10 publications

(17 citation statements)

References 45 publications

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“…Being a sum, the recorded current waves suggest small magnesium underpotential deposition partial current densities. Such small current densities exhibited by the UPD voltammograms from similar melts [41,45,46] were characteristic of deposited metal monolayers diffusing into the substrate and forming alloys.…”

Section: Resultsmentioning

confidence: 98%

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

Cvetković

Jovićević

Stevanović

et al. 2017

Metals

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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(NO 3 ) 2 ·6H 2 O + NH 4 NO 3 ·XH 2 O]. 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(NO 3 ) 2 + NH 4 NO 3 ] eutectic mixture at 460 K.

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Section: Resultsmentioning

confidence: 98%

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

Cvetković

Jovićević

Stevanović

et al. 2017

Metals

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“…The appearance of such reduction and oxidation current waves, which do not show pronounced amplitudes in voltammograms recorded in the underpotential range, are characteristic of metal underpotential deposition and dissolution in some other cases. 18,19 Those cases suggested that such voltammograms represent underpotential deposition of aluminum onto Zn and Cd substrate even though, according to Gerischer et al, [11][12][13] underpotential deposition should not occur. Namely, half of the difference of electron functions between Al and Zn, and Al and Cd is negative or very close to zero and, as a result, there should not be a driving force for Al underpotential deposition onto Zn or Cd substrates.…”

Section: Resultsmentioning

confidence: 99%

“…2 and 3, and agrees with findings reported elsewhere. 18,19 The results of LSV experiments with the cathodic end potential E f being led into the aluminum overpotential region using the same sweep rate at different temperatures are presented in Fig. 5.…”

Section: Resultsmentioning

confidence: 99%

Aluminium/zirconium alloys obtained by Al underpotential deposition onto Zr from low temperature AlCl3+NaCl molten salts

et al. 2019

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Contrary to the widely accepted hypothesis that it is not possible, aluminum underpotential deposition (UPD) onto zirconium from a low temperature (200, 250 and 300 °C) equimolar chloroaluminate melt was recorded. Furthermore, it was shown that aluminum UPD facilitates alloy formation between the deposited aluminum monolayer and the zirconium substrate by interdiffusion. The aluminum/zirconium alloys formed at temperatures substantially lower than those needed for thermal preparation of the same alloys were Al 3 Zr 2 and Al 3 Zr. The experimental techniques linear sweep voltammetry, potential step, scanning electron microscopy, energy dispersive spectroscopy and X-ray diffraction were used for the characterization of the obtained electrode surfaces.

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“…Being a sum, the recorded current densities suggest small magnesium underpotential deposition of partial current densities. Such small current densities exhibited by the UPD voltammograms from similar melts [23,32,36,37] were characteristic of deposited metal mono- layers diffusing into the substrate and forming alloys.…”

Section: Resultsmentioning

confidence: 99%

Magnesium underpotential deposition from nitrate melts and alloy formation with platinum substrate

Cvetković¹,

Jovićević²,

Bjelica³

2016

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This paper investigates magnesium underpotential deposition on platinum electrodes from magnesium nitrate-ammonium nitrate melts at temperatures ranging from 400 to 500 K. Electrochemical techniques used were linear sweep voltammetry and potential step. Electrode surfaces were studied by Scanning electron microscopy (SEM), Atomic force microscopy (AFM), Energy dispersive spectrometry (EDS), energy dispersive X-Ray spectroscopy (EDX) and XRay diffraction (XRD). In the underpotential range studied, it was found that magnesium underpotential deposition took part simultaneously with reduction processes of nitrate and nitrite. EDS and XRD measurements showed clear evidence of MgPt3, Mg3Pt alloys being formed.K e y w o r d s : magnesium/platinum alloys, underpotential deposition, magnesium nitrate--ammonium nitrate melts, microscopy and microanalysis techniques

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Al-Cd Alloy Formation by Aluminum Underpotential Deposition from AlCl3+NaCl Melts on Cadmium Substrate

Cited by 10 publications

References 45 publications

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

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

Aluminium/zirconium alloys obtained by Al underpotential deposition onto Zr from low temperature AlCl3+NaCl molten salts

Magnesium underpotential deposition from nitrate melts and alloy formation with platinum substrate

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