Niobium electrodeposition from chloroaluminate based molten salts containing niobium ions

3rd International Conference on Chemo and BioInformatics, Kragujevac, September 25-26. 2025. (pp. 160-163)

AUTOR(I) / AUTHOR(S): Nataša M. Petrović, Vesna S. Cvetković, Jovan N. Jovićević

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DOI: 10.46793/ICCBIKG25.160P

SAŽETAK / ABSTRACT:

Niobium (Nb) electrodeposition from a chloroaliminate molten salt made of an equimolar mixture of AlCl₃ and NaCl was carried out at 200 °C onto platinum. Niobium ions were introduced into the melt by anodic dissolution of a Nb electrode, and the electrochemical behaviour was characterized by the cyclic voltammetry. Potentiostatic deposition at 0.005 V vs. Al, within the Al undepotential region, resulted in deposits with significantly increased surface roughness, as recorded by AFM. X-ray diffraction identified metallic Nb and a cubic Nb₃Pt alloy, formed by interdiffusion between the deposited Nb and the Pt substrate. This method for the electrochemical synthesis of the Nb–Pt alloys from the low-temperature melts offers a new way of preparing the Nb-based superconducting materials.

KLJUČNE REČI / KEYWORDS:

Niobium electrodeposition, Chloroaluminate molten salts, Nb₃Pt alloy, AFM

PROJEKAT / ACKNOWLEDGEMENT:

This research is funded by the Ministry of Science, Technological Development and Innovation, Republic of Serbia, Contract No: 451-03-136/2025-03/200026.

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