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ANSTO Publications Online >
Journal Publications >
Journal Articles >
Please use this identifier to cite or link to this item:
http://apo.ansto.gov.au/dspace/handle/10238/3033
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| Title: | Modeling the charge-transfer resistance to determine the role of guar and activated polyacrylamide in copper electrodeposition. |
| Authors: | Fabian, CP Ridd, MJ Sheehan, ME Mandin, P |
| Keywords: | Electrodeposition Copper Chlorides Charge Exchange Simulation Voltametry |
| Issue Date: | Oct-2009 |
| Publisher: | Electrochemical Society |
| Citation: | Fabian, C. P., Ridd, M. J., Sheehan, M. E., & Mandin, P. (2009). Modeling the charge-transfer resistance to determine the role of guar and activated polyacrylamide in copper electrodeposition. Journal of the Electrochemical Society, 156(10), D400-D407. |
| Abstract: | In this paper, we explore the effects of two organic additives (guar and a selectively hydrolyzed polyacrylamide) in the presence of chloride ions on copper electrodeposition using cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) at a rotating cylinder electrode (RCE). This paper also demonstrates that the CV and EIS results are consistent and that the selectively hydrolyzed polyacrylamide, "activated polyacrylamide" (APAM), acts as a suppressor/inhibitor at the cathode/electrolyte interface, whereas guar does not. This paper presents an EIS measurement model for the effect of APAM + Cl- on a copper cathode. The EIS model was applied to data obtained at a potential of -470 mV vs a mercurous-mercuric sulfate reference electrode (MSE) at 45°C. A comparison between the effect of APAM + Cl- and guar + Cl- was conducted at -490 mV (vs MSE) at 45°C. APAM + Cl- was also investigated at -445 mV (vs MSE) at 65°C. EIS was used to determine the effect of APAM + Cl- or guar + Cl- aging on the charge-transfer resistance using the RCE. CV was used to determine their effect on the polarization of the electrode. The EIS and CV results are consistent. © 2009, Electrochemical Society Inc. |
| URI: | http://dx.doi.org/10.1149/1.3176879 http://apo.ansto.gov.au/dspace/handle/10238/3033 |
| ISSN: | 0013-4651 |
| Appears in Collections: | Journal Articles |
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