1

Electropolymerization

Advisor : Professor Guey-Sheng Liou

Reporter : Ming-Chi Tsai

Date : 2014/01/03

2

• Introduction Theory and mechanism of electropolymerization

• Applications Recent development of electropolymerization

• Conclusions

Outline

3

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.

4

Mechanism of Electropolymerization

Rajesh*, Biomaterial, 2007, 28, 791-805

5

Mechanism of Electropolymerization

R. J. Waltman*, J. Bargon*, Can. J. Chem., 1986, 64, 76

What’s Emonomer and Epolymer

6R. J. Waltman*, J. Bargon*, Can. J. Chem., 1986, 64, 76

7

R: H CH3 CH2CH3 CH2CH2CH3

(CH2)3CH3

A. F. Diaz*, J. Electroanal.. Chem., 1981, 129 , 115-132

Group effect

8

Electrolyte effect

Cyclic voltammogramms of [Pt]polypyrrole (20 nm) an CH3CN contaning various electrolyte salts Sweep rates 50 and 100 mV s-1

9

Applications

10

Biosensors

11Electroanalysis 2003, 15, No. 23-24

Biosensors

12

Chemical sensors

Johan Bobacka and Ari Ivaska, Handbook of electropolymerization, 2010, Ch.9

13Yaping Ding*, Analytica Chimica Acta., 2013, 770, 53– 61

14

Molecular Imprinting Polymer

Michael J. Whitcombe and Dhana Lakshmi, Handbook of electropolymerization, 2010, Ch.7

15Yücel Sahin*, Sensors 2008, 8, 5792-5805

Molecular Imprinting Polymer

Use CV to prove the AA combined with PPy

Phosphate buffer

16

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

17

18

Dyes sensitized solar cells

19Nat. mater., 2003, 2, 360-361

20

Conclusions

21

• Electropolymerization Intrinsically conducting polymersModified electrodesSensors

• Good approach Easy to define areaWell-controlled thickness at a nanometer scale

Conclusions