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A Comparative Study of Nickel Electrodeposition Using Deep Eutectic Solvents and Aqueous Solutions

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journal contribution
posted on 23.07.2015, 12:07 by Andrew P. Abbott, Andrew Ballantyne, Robert C. Harris, Jamil A. Jumaa, Karl S. Rydera, G. Forrest
Metal electrodeposition using ionic liquid electrolytes and deep eutectic solvents is now well known but to our knowledge for electrolytic deposition of metals such as nickel no direct comparison has thus far been drawn between deposition using aqueous solutions and DES under otherwise identical conditions. In the current study it is shown that nickel deposition can be carried out with similar deposition rates in aqueous and ionic media despite the significant differences in viscosity and conductivity. It is, however, shown that in ionic media the morphology of the deposits is markedly different from that achieved using a Watts nickel bath and that one aspect of these differences manifests itself in significant increase in the coating hardness. It is proposed that the observed morphology differences occur due to the variations of nickel speciation in each electrolyte environment.

Funding

The financial support of Ministry of higher education and scientific research in Kurdistan, Iraq, HCDP program is gratefully acknowledged for the studentship to JAJ. Also the authors acknowledge the financial support of the TSB (UK) under the RECONIF project (BA011K) and of the EU under Framework 7 for project CoLaBATS (FP7-ENV-2013 603482).

History

Citation

Electrochimica Acta, 2015, 176, pp. 718-726 (9)

Author affiliation

/Organisation/COLLEGE OF SCIENCE AND ENGINEERING/Department of Chemistry

Version

AM (Accepted Manuscript)

Published in

Electrochimica Acta

Publisher

Elsevier for International Society of Electrochemistry (ISE), Pergamon

issn

1873-3859

Acceptance date

09/07/2015

Copyright date

2015

Available date

18/07/2017

Publisher version

http://www.sciencedirect.com/science/article/pii/S0013468615301183

Notes

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Language

en

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