Electrochemical actuator based on monolithic polypyrrole-TiO2 nanoparticle composite film

Ximin He; Gaoquan Shi

doi:10.1016/j.snb.2005.10.011

Electrochemical actuator based on monolithic polypyrrole-TiO₂ nanoparticle composite film

Ximin He, Gaoquan Shi

Arizona State University

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

46 Scopus citations

Abstract

A polypyrrole (PPy) composite film with a pure PPy zone and a PPy-TiO₂ nanoparticle composite zone in its cross-sectional direction was synthesized by direct oxidation of pyrrole successively in an electrolyte with or without TiO₂ nanoparticles. The volume content of TiO₂ in the composite film was tested to be lower than 0.9%. The actuator fabricated from this monolithic PPy film bends uniformly in two directions with a maximum bending angle larger than 90° and has a high response rate (∼115° s^-1 at 1.0 V versus SCE) and a long lifetime (>20,000 cycles) in a 1 M LiClO₄ aqueous solution. The high performance of this actuator resulted from the non-delamination and intrinsic asymmetric structure and the high conductivity of PPy film.

Original language	English (US)
Pages (from-to)	488-493
Number of pages	6
Journal	Sensors and Actuators, B: Chemical
Volume	115
Issue number	1
DOIs	https://doi.org/10.1016/j.snb.2005.10.011
State	Published - May 23 2006

Keywords

Electrochemistry
Nanocomposites
Polypyrroles

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Instrumentation
Condensed Matter Physics
Surfaces, Coatings and Films
Metals and Alloys
Electrical and Electronic Engineering
Materials Chemistry

Access to Document

10.1016/j.snb.2005.10.011

Cite this

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title = "Electrochemical actuator based on monolithic polypyrrole-TiO2 nanoparticle composite film",

abstract = "A polypyrrole (PPy) composite film with a pure PPy zone and a PPy-TiO2 nanoparticle composite zone in its cross-sectional direction was synthesized by direct oxidation of pyrrole successively in an electrolyte with or without TiO2 nanoparticles. The volume content of TiO2 in the composite film was tested to be lower than 0.9%. The actuator fabricated from this monolithic PPy film bends uniformly in two directions with a maximum bending angle larger than 90° and has a high response rate (∼115° s-1 at 1.0 V versus SCE) and a long lifetime (>20,000 cycles) in a 1 M LiClO4 aqueous solution. The high performance of this actuator resulted from the non-delamination and intrinsic asymmetric structure and the high conductivity of PPy film.",

keywords = "Electrochemistry, Nanocomposites, Polypyrroles",

author = "Ximin He and Gaoquan Shi",

note = "Funding Information: This work was supported by National Science Foundation of China (Nos. 50533030, 50225311). ",

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AU - Shi, Gaoquan

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AB - A polypyrrole (PPy) composite film with a pure PPy zone and a PPy-TiO2 nanoparticle composite zone in its cross-sectional direction was synthesized by direct oxidation of pyrrole successively in an electrolyte with or without TiO2 nanoparticles. The volume content of TiO2 in the composite film was tested to be lower than 0.9%. The actuator fabricated from this monolithic PPy film bends uniformly in two directions with a maximum bending angle larger than 90° and has a high response rate (∼115° s-1 at 1.0 V versus SCE) and a long lifetime (>20,000 cycles) in a 1 M LiClO4 aqueous solution. The high performance of this actuator resulted from the non-delamination and intrinsic asymmetric structure and the high conductivity of PPy film.

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