Theoretical and Experimental Study of Copper Electrodeposition in a Modified Hull Cell

Palli, S and Dey, Suhash Ranjan (2016) Theoretical and Experimental Study of Copper Electrodeposition in a Modified Hull Cell. International Journal of Electrochemistry, 2016 (348240). pp. 1-13. ISSN 2090-3529

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Abstract

The primary current distribution and the resistance of a modified Hull cell are calculated by using conformal mapping technique coupled with numerical evaluation of the resulting integral equations. An approximate analytical expression for the primary current distribution of a modified Hull cell is presented. The primary current distribution along the cathode surface is noticed varying in controlled manner as a function of position on the substrate. The current distributions (primary, secondary, and tertiary) in the cell have also been calculated at different applied average current densities (2, 4.1, and 8.2 mA cm−2) through numerical simulation by using finite element based software. The numerical simulation result of the primary current distribution is then compared with the analytical solution and a good match is found. Experimentally, single Cu metal electrodeposition is carried out at different applied average current densities (2, 4.1, and 8.2 mA cm−2) in a modified Hull. The current distribution (primary, secondary, and tertiary) results obtained from the numerical simulation are compared with the experimental results and a satisfactory match is found. Surface morphology of the Cu deposits is examined using scanning electron microscopy (SEM).

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IITH Creators:

IITH Creators	ORCiD
Dey, Suhash Ranjan	http://orcid.org/0000-0002-5148-9534

Item Type:

Article

Additional Information:

The authors are indebted to Dr. Challa Subrahmanya Sastry (Department of Mathematics, IITH) and Dr. Jampana Phanindra (Department of Chemical Engineering, IITH) for the technical discussions to calculate primary current distribution analytically using conformal mapping technique. The authors also would like to thank BVRSN Prasad, K. Manjunath, and M. Srinivas for their help in developing the MATLAB program.

Subjects:

Materials Engineering > Materials engineering

Divisions:

Department of Material Science Engineering

Depositing User:

Team Library

Date Deposited:

09 Feb 2016 06:39

Last Modified:

07 Sep 2017 07:23

URI:

http://raiithold.iith.ac.in/id/eprint/2179