User:Cassidy B. Hart/Notebook/CHEM-471: Gold & Silver Nanoparticles/2017/02/14: Difference between revisions
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== | ==Purpose== | ||
* | *To determine if coating the glassy carbon electrode with nanofibers blocked electron transfer. | ||
**15 μL | |||
**20 μL | |||
==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 with the addition of 15μL or 20μL 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; 15μL Nanofibers; Test 2 | |||
[[Image:Nano 15ul ru hex 5mm - 1 m kcl - sonicated -2.png|600px]]<br/> | |||
'''Figure 1''' dV=.082V <br/> | |||
*1M KCl; 15μL Nanofibers; Test 3 | |||
[[Image:Nano 15ul ru hex 5mm - 1 m kcl - sonicated -3.png|600px]]<br/> | |||
'''Figure 2''' dV=.083V <br/> | |||
*1M KCl; 20μL Nanofibers; Test 1 | |||
[[Image:Nano 20ul ru hex 5mm - 1 m kcl - sonicated -1.png|600px]]<br/> | |||
'''Figure 3''' dV=.092V <br/> | |||
*1M KCl; 20μL Nanofibers; Test 2 | |||
[[Image:Nano 20ul ru hex 5mm - 1 m kcl - sonicated -2.png|600px]]<br/> | |||
'''Figure 4''' dV cannot be determined | |||
==Results== | |||
==Notes== | |||
[[User:Hannah Harvey/Notebook/CHEM-471 Fall 2016/2017/02/14|Hannah Harvey]] | |||
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Revision as of 11:38, 14 February 2017
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Purpose
ProtocolElectrochemical Analysis
Nanofiber drying
Data
ResultsNotes |