Modification of electropolymerized polypyrrole with Na +-montmorillonite

Yu Chuan Liu; Ming Der Ger

doi:10.1016/S0009-2614(02)01108-9

Modification of electropolymerized polypyrrole with Na ⁺-montmorillonite

Yu Chuan Liu, Ming Der Ger

Research output: Contribution to journal › Article › peer-review

33 Citations (Scopus)

Abstract

A polypyrrole (PPy)/Na ⁺ montmorillonite (MMT) clay composite was prepared by an electropolymerization method on a gold substrate. The results indicate that the nucleation and growth are instantaneous two-dimensional and three-dimensional processes before and after nuclei overlapping, respectively, for the composite electropolymerization, which are distinguishable from the nucleation and growth mechanism of pure PPy electropolymerization before nuclei overlapping. The surface morphology of the prepared composite is denser and more compact. The thermal stability of PPy is improved, as shown from thermogravimetric analysis, due to the modification of the incorporated clay. Also, the conductivity of the composite was significantly increased (∼20 times) and it can depress aging, in comparison to pure PPy.

Original language	English
Pages (from-to)	491-496
Number of pages	6
Journal	Chemical Physics Letters
Volume	362
Issue number	5-6
DOIs	https://doi.org/10.1016/S0009-2614(02)01108-9
Publication status	Published - Aug 26 2002
Externally published	Yes

ASJC Scopus subject areas

General Physics and Astronomy
Physical and Theoretical Chemistry

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title = "Modification of electropolymerized polypyrrole with Na +-montmorillonite",

abstract = "A polypyrrole (PPy)/Na + montmorillonite (MMT) clay composite was prepared by an electropolymerization method on a gold substrate. The results indicate that the nucleation and growth are instantaneous two-dimensional and three-dimensional processes before and after nuclei overlapping, respectively, for the composite electropolymerization, which are distinguishable from the nucleation and growth mechanism of pure PPy electropolymerization before nuclei overlapping. The surface morphology of the prepared composite is denser and more compact. The thermal stability of PPy is improved, as shown from thermogravimetric analysis, due to the modification of the incorporated clay. Also, the conductivity of the composite was significantly increased (∼20 times) and it can depress aging, in comparison to pure PPy.",

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AU - Ger, Ming Der

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N2 - A polypyrrole (PPy)/Na + montmorillonite (MMT) clay composite was prepared by an electropolymerization method on a gold substrate. The results indicate that the nucleation and growth are instantaneous two-dimensional and three-dimensional processes before and after nuclei overlapping, respectively, for the composite electropolymerization, which are distinguishable from the nucleation and growth mechanism of pure PPy electropolymerization before nuclei overlapping. The surface morphology of the prepared composite is denser and more compact. The thermal stability of PPy is improved, as shown from thermogravimetric analysis, due to the modification of the incorporated clay. Also, the conductivity of the composite was significantly increased (∼20 times) and it can depress aging, in comparison to pure PPy.

AB - A polypyrrole (PPy)/Na + montmorillonite (MMT) clay composite was prepared by an electropolymerization method on a gold substrate. The results indicate that the nucleation and growth are instantaneous two-dimensional and three-dimensional processes before and after nuclei overlapping, respectively, for the composite electropolymerization, which are distinguishable from the nucleation and growth mechanism of pure PPy electropolymerization before nuclei overlapping. The surface morphology of the prepared composite is denser and more compact. The thermal stability of PPy is improved, as shown from thermogravimetric analysis, due to the modification of the incorporated clay. Also, the conductivity of the composite was significantly increased (∼20 times) and it can depress aging, in comparison to pure PPy.

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EP - 496

JO - Chemical Physics Letters

JF - Chemical Physics Letters

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Modification of electropolymerized polypyrrole with Na ⁺-montmorillonite

Abstract

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