Purpose
- To determine if coating the glassy carbon electrode with nanofibers blocked electron transfer.
- To begin the drying process of nanofibers to test alternate methods for electrochemical analysis on 02/14/2017
- To re-run .1M KCl data after initial data import into Excel was faulty
Protocol
Electrochemical Analysis
- CH Instruments Electrochemical Analyzer was used.
- 5 mM hexaammineruthenium(III) chloride and 1M 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 same procedure was repeated twice before being repeated a third time with the addition of 15uL of nanofibers which had been dropped onto the GCE and allowed to dry.
- The nanofibers had been centrifued at 1300rpm for 1 minute.
- 15uL nanofibers take about 40 minutes to dry
Nanofiber drying
- The fibers were combined in a Petri dish to increase the available drying surface area and let rest overnight.
Data
- .1M KCl Test; No nanofibers
- 1M KCl; 15μL Nanofibers; Test 1
Results
Notes
Hannah Harvey
|
Project name
