Purpose
To try and minimize the voltage between peaks.
Protocol
- CH Instruments Electrochemical Analyzer was used.
- 5 mM hexaammineruthenium(III) chloride and 0.1 M KCl solution was used in electrochemical cell.
- The glassy carbon electrode was cleaned with 0.3 and then 0.05 alumina slurry and then sonicated.
- The reference electrode, the platinum wire, and the GCE were attached to the instrument.
- The parameters were set at:
- Initial: 0.2
- High: 0.2
- Low: -0.4
- Initial Scan: Negative
- Scan Rate: 0.05
- Segments: 4
- Sensitivity 1x10^(-5)
- Sample Interval: 0.001
- Then the instrument was ran.
- This protocol was then repeated but with a hexaammineruthenium(III) chloride and 1M KCl solution.
Data
Figure 1 dV=0.123V dC=9.54*10-5A
Figure 2 dV=0.069V dC=1.00*10-4A
Results
- 0.1 M KCl solution had too high a separation between peaks value so 1 M KCl solution was used instead, which had an appropriate separation between peaks.
Notes
Hannah Harvey
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Project name
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