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Electrochemical Deposition of Al-Ti Alloys from Equimolar AlCl3 + NaCl Containing Electrochemically Dissolved Titanium

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2020
metals-10-00088-v2.pdf (6.324Mb)
Authors
Cvetković, Vesna S.
Vukićević, Nataša
Milićević-Neumann, Ksenija
Stopić, Srećko
Friedrich, Bernd
Jovićević, Jovan N.
Article (Published version)
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Abstract
Al-Ti alloys were electrodeposited from equimolar chloroaluminate molten salts containing up to 0.1 M of titanium ions, which were added to the electrolyte by potentiostatic dissolution of metallic Ti. Titanium dissolution and titanium and aluminium deposition were investigated by linear sweep voltammetry and chronoamperometry at 200 and 300 °C. Working electrodes used were titanium and glassy carbon. The voltammograms on Ti obtained in the electrolyte without added Ti ions indicated titanium deposition and dissolution proceeding in three reversible steps: Ti4+ ⇄ Ti3+, Ti3+ ⇄ Ti2+ and Ti2+ ⇄ Ti. The voltammograms recorded with glassy carbon in the electrolyte containing added titanium ions did not always clearly register all of the three processes. However, peak currents, which were characteristics of Al, Ti and Al-Ti alloy deposition and dissolution, were evident in voltammograms on both working electrodes used. A constant potential electrodeposition regime was used to obtain deposits... on the glassy carbon working electrode. The obtained deposits were characterized by SEM, energy-dispersive spectrometry and XRD. In the deposits on the glassy carbon electrode, the analysis identified an Al and AlTi3 alloy formed at 200 °C and an Al2Ti and Al3Ti alloy obtained at 300 °C.

Keywords:
Al-Ti alloy / electrochemical co-deposition / chloroaluminate melt / XRD
Source:
Metals, 2020, 10, 1, 88-
Publisher:
  • MDPI

DOI: 10.3390/met10010088

ISSN: 2075-4701

WoS: 000516827800088

Scopus: 2-s2.0-85077691425
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1
URI
https://cer.ihtm.bg.ac.rs/handle/123456789/3377
Collections
  • Radovi istraživača / Researchers' publications
Institution/Community
IHTM
TY  - JOUR
AU  - Cvetković, Vesna S.
AU  - Vukićević, Nataša
AU  - Milićević-Neumann, Ksenija
AU  - Stopić, Srećko
AU  - Friedrich, Bernd
AU  - Jovićević, Jovan N.
PY  - 2020
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3377
AB  - Al-Ti alloys were electrodeposited from equimolar chloroaluminate molten salts containing up to 0.1 M of titanium ions, which were added to the electrolyte by potentiostatic dissolution of metallic Ti. Titanium dissolution and titanium and aluminium deposition were investigated by linear sweep voltammetry and chronoamperometry at 200 and 300 °C. Working electrodes used were titanium and glassy carbon. The voltammograms on Ti obtained in the electrolyte without added Ti ions indicated titanium deposition and dissolution proceeding in three reversible steps: Ti4+ ⇄ Ti3+, Ti3+ ⇄ Ti2+ and Ti2+ ⇄ Ti. The voltammograms recorded with glassy carbon in the electrolyte containing added titanium ions did not always clearly register all of the three processes. However, peak currents, which were characteristics of Al, Ti and Al-Ti alloy deposition and dissolution, were evident in voltammograms on both working electrodes used. A constant potential electrodeposition regime was used to obtain deposits on the glassy carbon working electrode. The obtained deposits were characterized by SEM, energy-dispersive spectrometry and XRD. In the deposits on the glassy carbon electrode, the analysis identified an Al and AlTi3 alloy formed at 200 °C and an Al2Ti and Al3Ti alloy obtained at 300 °C.
PB  - MDPI
T2  - Metals
T1  - Electrochemical Deposition of Al-Ti Alloys from Equimolar AlCl3 + NaCl Containing Electrochemically Dissolved Titanium
VL  - 10
IS  - 1
SP  - 88
DO  - 10.3390/met10010088
ER  - 
@article{
author = "Cvetković, Vesna S. and Vukićević, Nataša and Milićević-Neumann, Ksenija and Stopić, Srećko and Friedrich, Bernd and Jovićević, Jovan N.",
year = "2020",
abstract = "Al-Ti alloys were electrodeposited from equimolar chloroaluminate molten salts containing up to 0.1 M of titanium ions, which were added to the electrolyte by potentiostatic dissolution of metallic Ti. Titanium dissolution and titanium and aluminium deposition were investigated by linear sweep voltammetry and chronoamperometry at 200 and 300 °C. Working electrodes used were titanium and glassy carbon. The voltammograms on Ti obtained in the electrolyte without added Ti ions indicated titanium deposition and dissolution proceeding in three reversible steps: Ti4+ ⇄ Ti3+, Ti3+ ⇄ Ti2+ and Ti2+ ⇄ Ti. The voltammograms recorded with glassy carbon in the electrolyte containing added titanium ions did not always clearly register all of the three processes. However, peak currents, which were characteristics of Al, Ti and Al-Ti alloy deposition and dissolution, were evident in voltammograms on both working electrodes used. A constant potential electrodeposition regime was used to obtain deposits on the glassy carbon working electrode. The obtained deposits were characterized by SEM, energy-dispersive spectrometry and XRD. In the deposits on the glassy carbon electrode, the analysis identified an Al and AlTi3 alloy formed at 200 °C and an Al2Ti and Al3Ti alloy obtained at 300 °C.",
publisher = "MDPI",
journal = "Metals",
title = "Electrochemical Deposition of Al-Ti Alloys from Equimolar AlCl3 + NaCl Containing Electrochemically Dissolved Titanium",
volume = "10",
number = "1",
pages = "88",
doi = "10.3390/met10010088"
}
Cvetković, V. S., Vukićević, N., Milićević-Neumann, K., Stopić, S., Friedrich, B.,& Jovićević, J. N.. (2020). Electrochemical Deposition of Al-Ti Alloys from Equimolar AlCl3 + NaCl Containing Electrochemically Dissolved Titanium. in Metals
MDPI., 10(1), 88.
https://doi.org/10.3390/met10010088
Cvetković VS, Vukićević N, Milićević-Neumann K, Stopić S, Friedrich B, Jovićević JN. Electrochemical Deposition of Al-Ti Alloys from Equimolar AlCl3 + NaCl Containing Electrochemically Dissolved Titanium. in Metals. 2020;10(1):88.
doi:10.3390/met10010088 .
Cvetković, Vesna S., Vukićević, Nataša, Milićević-Neumann, Ksenija, Stopić, Srećko, Friedrich, Bernd, Jovićević, Jovan N., "Electrochemical Deposition of Al-Ti Alloys from Equimolar AlCl3 + NaCl Containing Electrochemically Dissolved Titanium" in Metals, 10, no. 1 (2020):88,
https://doi.org/10.3390/met10010088 . .

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