Alloy Formation by Electrodeposition of Niobium and Aluminium on Gold from Chloroaluminate Melts

2017
Authors
Vukićević, Nataša
Cvetković, Vesna S.

Jovanović, Ljiljana S.
Stevanović, Sanja

Jovićević, Jovan N.

Article (Published version)

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Niobium and aluminium have been electrodeposited from inorganic chloroaluminate melts onto gold substrate at 473 K. The melts were prepared from an equimolar mixture of AlCl3+NaCl with niobium added by anodic dissolution. It was found that aluminium and niobium underpotential deposition on gold precedes overpotential deposition of niobium and subsequent aluminium deposition. Niobium was overpotentially deposited individually and co-deposited with aluminium. Applied electrochemical techniques (linear sweep voltammetry, polarization, open circuit and potential step) indicated, then physical analytical methods (scanning electron microscopy, energy dispersive spectrometry, atomic force microscopy and X-ray diffraction) confirmed formation of several niobium-aluminium, niobiumgold and aluminium- gold alloys in niobium and aluminium underpotential as well as in niobium and aluminium overpotential regions.
Keywords:
Niobium / Aluminium / Gold / Metal deposition / Alloy formation / Chloroaluminate meltSource:
International Journal of Electrochemical Science, 2017, 12, 2, 1075-1093Publisher:
- Esg, Belgrade
DOI: 10.20964/2017.02.34
ISSN: 1452-3981
WoS: 000397256400021
Scopus: 2-s2.0-85012905014
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IHTMTY - JOUR AU - Vukićević, Nataša AU - Cvetković, Vesna S. AU - Jovanović, Ljiljana S. AU - Stevanović, Sanja AU - Jovićević, Jovan N. PY - 2017 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/2182 AB - Niobium and aluminium have been electrodeposited from inorganic chloroaluminate melts onto gold substrate at 473 K. The melts were prepared from an equimolar mixture of AlCl3+NaCl with niobium added by anodic dissolution. It was found that aluminium and niobium underpotential deposition on gold precedes overpotential deposition of niobium and subsequent aluminium deposition. Niobium was overpotentially deposited individually and co-deposited with aluminium. Applied electrochemical techniques (linear sweep voltammetry, polarization, open circuit and potential step) indicated, then physical analytical methods (scanning electron microscopy, energy dispersive spectrometry, atomic force microscopy and X-ray diffraction) confirmed formation of several niobium-aluminium, niobiumgold and aluminium- gold alloys in niobium and aluminium underpotential as well as in niobium and aluminium overpotential regions. PB - Esg, Belgrade T2 - International Journal of Electrochemical Science T1 - Alloy Formation by Electrodeposition of Niobium and Aluminium on Gold from Chloroaluminate Melts VL - 12 IS - 2 SP - 1075 EP - 1093 DO - 10.20964/2017.02.34 ER -
@article{ author = "Vukićević, Nataša and Cvetković, Vesna S. and Jovanović, Ljiljana S. and Stevanović, Sanja and Jovićević, Jovan N.", year = "2017", abstract = "Niobium and aluminium have been electrodeposited from inorganic chloroaluminate melts onto gold substrate at 473 K. The melts were prepared from an equimolar mixture of AlCl3+NaCl with niobium added by anodic dissolution. It was found that aluminium and niobium underpotential deposition on gold precedes overpotential deposition of niobium and subsequent aluminium deposition. Niobium was overpotentially deposited individually and co-deposited with aluminium. Applied electrochemical techniques (linear sweep voltammetry, polarization, open circuit and potential step) indicated, then physical analytical methods (scanning electron microscopy, energy dispersive spectrometry, atomic force microscopy and X-ray diffraction) confirmed formation of several niobium-aluminium, niobiumgold and aluminium- gold alloys in niobium and aluminium underpotential as well as in niobium and aluminium overpotential regions.", publisher = "Esg, Belgrade", journal = "International Journal of Electrochemical Science", title = "Alloy Formation by Electrodeposition of Niobium and Aluminium on Gold from Chloroaluminate Melts", volume = "12", number = "2", pages = "1075-1093", doi = "10.20964/2017.02.34" }
Vukićević, N., Cvetković, V. S., Jovanović, L. S., Stevanović, S.,& Jovićević, J. N.. (2017). Alloy Formation by Electrodeposition of Niobium and Aluminium on Gold from Chloroaluminate Melts. in International Journal of Electrochemical Science Esg, Belgrade., 12(2), 1075-1093. https://doi.org/10.20964/2017.02.34
Vukićević N, Cvetković VS, Jovanović LS, Stevanović S, Jovićević JN. Alloy Formation by Electrodeposition of Niobium and Aluminium on Gold from Chloroaluminate Melts. in International Journal of Electrochemical Science. 2017;12(2):1075-1093. doi:10.20964/2017.02.34 .
Vukićević, Nataša, Cvetković, Vesna S., Jovanović, Ljiljana S., Stevanović, Sanja, Jovićević, Jovan N., "Alloy Formation by Electrodeposition of Niobium and Aluminium on Gold from Chloroaluminate Melts" in International Journal of Electrochemical Science, 12, no. 2 (2017):1075-1093, https://doi.org/10.20964/2017.02.34 . .