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Study of silver electrodeposition in deep eutectic solvents using atomic force microscopy

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journal contribution
posted on 2019-05-09, 12:35 authored by A. P. Abbott, M. Azam, K. S. Ryder, S. Saleem
The electrodeposition of metals in ionic liquids and deep eutectic solvents leads to deposits with significantly different morphologies to those seen with aqueous solutions. The classical methods of fitting amperometric data to nucleation and growth mechanisms do not fit the data well in ionic systems and tend to focus on the short time-scale aspects of nucleation. In the current study, ex-situ AFM was used to model crystallite sizes and distributions by digitising and modelling the images. The deposition of silver from a deep eutectic solvent was chosen as it has been studied by several groups with a variety of techniques. The crystallite size data obtained from AFM and chronoamperometry for long time-scale deposition studies are compared and it is shown that the trends are similar, but there is a discrepancy in the nuclear number density of approximately an order of magnitude. The nuclear number density was found to be consistent with aqueous nucleation studies once differences in concentration and mass transport were accounted for.

Funding

The authors would like to acknowledge the Pakistani Government for funding (MA and SS).

History

Citation

Transactions of the Institute of Metal Finishing, 2018, 96 (6), pp. 297-303

Author affiliation

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

Version

  • AM (Accepted Manuscript)

Published in

Transactions of the Institute of Metal Finishing

Publisher

Taylor & Francis for Institute of Metal Finishing

issn

0020-2967

eissn

1745-9192

Acceptance date

2018-08-15

Copyright date

2018

Available date

2019-10-12

Publisher version

https://www.tandfonline.com/doi/full/10.1080/00202967.2018.1520483

Notes

The file associated with this record is under embargo until 12 months after publication, in accordance with the publisher's self-archiving policy. The full text may be available through the publisher links provided above.

Language

en

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