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  21 Mechanism of Electrochemical Al Deposition from room-temperature Chloraluminate Ionic Liquids.
ۼ  WizMAC ۼ  2015-07-20
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21 Mechanism of Electrochemical Al Deposition from room-temperature Chloraluminate Ionic Liquids.

Sang Jung Ahn, Jae-Joon Lee.  Bulletin-Korean Chemical Society. January. 2009  

 


 

Figure 1. Cyclic voltammetry on Au, W, and GC, in acidic AlCl3/EMIC melts (N = 1.5). The scan rate (v) is 20 mV/s at Au and 100 mV/sec for the other electrodes. The reference electrode was an Al wire immersed in the same solution in which the experiments were performed.




 

Figure 2. (a) Cyclic voltammetry on Au-QCM showing the differences in anodic dissolution before and after the initiation of the Al bulk deposition in 1/1 v/v acidic (1.1:1) AlCl3/EMIC melt/benzene mixture while the QCM frequency response is monitored. (b) Corresponding in situ frequency responses. Al wire immersed in the same solution was used as the reference electrode. Scan rate = 100 mV/s.

 

 

Figure 3. Correlation between the frequency shift (F) and the effective mass change (m, g/cm2) calculated from the charge obtained by integration of the current response in voltammograms. Solid line represents the calculated frequency shift for given values of mass loaded from Sauerbrey equation. The slope of the best linear fit in the

region 0.05 < m < 0.27 g/cm2, yielded a value of 79.0 Hz cm2/g.


 






 
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