Al–Fe alloy formation by aluminium underpotential deposition from AlCl3+ NaCl melts on iron substrate

Contrary to the widely accepted hypothesis that it is not possible, aluminium underpotential deposition (UPD) onto zirconium from a low temperature (200, 250 and 300?C) equimolar chloroaluminate melt was recorded. Furthermore, it was shown that aluminium UPD facilitates alloy formation between the deposited aluminium monolayer and the zirconium substrate by interdiffusion. The aluminium/zirconium alloys formed at the temperatures substantially lower than those needed for thermal preparation of the same alloys were: Al3Zr2 and Al3Zr. Experimental techniques used were linear sweep voltammetry, potential step, scanning electron microscope, energy dispersive spectroscopy and X-ray diffraction were used for characterization of obtained electrode surfaces.

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Al-Cu alloy formation by aluminium underpotential deposition from AlCl3+NaCl melts on copper substrate

Metallic Materials ◽

10.4149/km_2010_3_159 ◽

2021 ◽

Vol 48 (03) ◽

pp. 159-171

Author(s):

B. S. RADOVIĆ ◽

V. S. CVETKOVIĆ ◽

R. A. EDWARDS ◽

J. N. JOVIĆEVIĆ

Keyword(s):

Copper Substrate ◽

Underpotential Deposition ◽

Alloy Formation ◽

Cu Alloy

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

Metallic Materials ◽

10.4149/km_2016_5_321 ◽

2016 ◽

Vol 54 (05) ◽

pp. 321-330 ◽

Cited By ~ 1

Author(s):

V. S. CVETKOVIĆ ◽

J. N. JOVIĆEVIĆ ◽

L. J. BJELICA

Keyword(s):

Underpotential Deposition ◽

Alloy Formation

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Alloy formation by Mg underpotential deposition on al from nitrate melts

Chemical Industry and Chemical Engineering Quarterly ◽

10.2298/ciceq141205009c ◽

2015 ◽

Vol 21 (4) ◽

pp. 527-536 ◽

Cited By ~ 3

Author(s):

Vesna Cvetkovic ◽

Luka Bjelica ◽

Natasa Vukicevic ◽

Jovan Jovicevic

Keyword(s):

Energy Dispersive Spectrometry ◽

Electrochemical Techniques ◽

Linear Sweep Voltammetry ◽

Stripping Voltammetry ◽

Underpotential Deposition ◽

Magnesium Nitrate ◽

Energy Dispersive ◽

Alloy Formation ◽

X Ray Diffraction ◽

X Ray

Magnesium was underpotentially deposited on aluminium electrodes from magnesium nitrate-ammonium nitrate melts at temperatures ranging from 390 K to 500 K. Electrochemical techniques used were linear sweep voltammetry and potential step. Electrodes were studied by Scanning electron microscopy (SEM), Energy dispersive spectrometry (EDS), energy dispersive X-ray spectroscopy (EDX) and X-ray diffraction (XRD). It was found that reduction processes of nitrate, nitrite and water (when present), in the underpotential range studied, took part simultaneously with magnesium underpotential deposition. Consequently, magnesium UPD reduction and stripping voltammetry peaks were not pronounced and well defined. Nevertheless, EDS, EDX and XRD measurements showed evidence of Mg2Al3, MgAl2 and Al12Mg17 alloys formed by underpotential deposition of magnesium onto aluminium substrate.

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