electropolymerization advisor : professor guey-sheng liou reporter : ming-chi tsai date : 2014/01/03...
TRANSCRIPT
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Electropolymerization
Advisor : Professor Guey-Sheng Liou
Reporter : Ming-Chi Tsai
Date : 2014/01/03
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• Introduction Theory and mechanism of electropolymerization
• Applications Recent development of electropolymerization
• Conclusions
Outline
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Electropolymerization
The first electropolymerization experiment reported in 1968 by Dall’oxlio→ Pyrrole in water mediumThe first determining event was the electro-polymerization in an organic medium reported in 1979 by Diaz→ Pyrrole in MeCN
Reynolds research Lab.
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Mechanism of Electropolymerization
Rajesh*, Biomaterial, 2007, 28, 791-805
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Mechanism of Electropolymerization
R. J. Waltman*, J. Bargon*, Can. J. Chem., 1986, 64, 76
What’s Emonomer and Epolymer
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6R. J. Waltman*, J. Bargon*, Can. J. Chem., 1986, 64, 76
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R: H CH3 CH2CH3 CH2CH2CH3
(CH2)3CH3
A. F. Diaz*, J. Electroanal.. Chem., 1981, 129 , 115-132
Group effect
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Electrolyte effect
Cyclic voltammogramms of [Pt]polypyrrole (20 nm) an CH3CN contaning various electrolyte salts Sweep rates 50 and 100 mV s-1
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Applications
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Biosensors
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11Electroanalysis 2003, 15, No. 23-24
Biosensors
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Chemical sensors
Johan Bobacka and Ari Ivaska, Handbook of electropolymerization, 2010, Ch.9
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13Yaping Ding*, Analytica Chimica Acta., 2013, 770, 53– 61
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Molecular Imprinting Polymer
Michael J. Whitcombe and Dhana Lakshmi, Handbook of electropolymerization, 2010, Ch.7
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15Yücel Sahin*, Sensors 2008, 8, 5792-5805
Molecular Imprinting Polymer
Use CV to prove the AA combined with PPy
Phosphate buffer
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Molecular Imprinting Polymer
Yücel Sahin*, Sensors 2008, 8, 5792-5805
0.025M pyyrole monomer is the best condition for this MIP Fig. 6
Fig. 5
MIP has more current intensity for AA than NIP
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Dyes sensitized solar cells
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19Nat. mater., 2003, 2, 360-361
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Conclusions
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• Electropolymerization Intrinsically conducting polymersModified electrodesSensors
• Good approach Easy to define areaWell-controlled thickness at a nanometer scale
Conclusions