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Electrodeposition of Bismuth From Nitric Acid Electrolyte

Published

Author(s)

E Sandnes, Maureen E. Williams, Ugo Bertocci, Mark D. Vaudin, Gery R. Stafford

Abstract

The electrodeposition of Bi from acidic nitrate solution was examined. Bismuth deposition was determined to be quasi-reversible on Au, with a current efficiency of 100%, based on integration of deposition and stripping voltammetric waves. No interference from nitrate reduction was found on Bi and Au, whereas nitrate reduction occurred on W and Cu electrodes. Analysis of current-time transients clearly shows nucleation on Au to be instantaneous. Field emission SEM revealed nodular deposits with moderate surface roughness. Nodule size varied from 1 micron to 5 microns depending on deposition potential and deposit thickness. X-ray diffraction patterns for all deposits were indexed to rhombohedral bismuth. The deposits showed fairly strong {01-12} crystallographic texture at high deposition overpotentials.
Citation
Electrochimica Acta
Volume
52

Keywords

bismuth, deposition, electrodeposition

Citation

Sandnes, E. , Williams, M. , Bertocci, U. , Vaudin, M. and Stafford, G. (2007), Electrodeposition of Bismuth From Nitric Acid Electrolyte, Electrochimica Acta, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=853552 (Accessed April 15, 2024)
Created April 2, 2007, Updated February 17, 2017