Controlling the dimensions of carbon nanofiber structures through the electropolymerization of pyrrole

Benjamin L. Fletcher; Timothy E. McKnight; Jason D. Fowlkes; David P. Allison; Michael L. Simpson; Mitchel J. Doktycz

doi:10.1016/j.synthmet.2007.03.004

Controlling the dimensions of carbon nanofiber structures through the electropolymerization of pyrrole

Benjamin L. Fletcher, Timothy E. McKnight, Jason D. Fowlkes, David P. Allison, Michael L. Simpson, Mitchel J. Doktycz

Biosciences Division

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

20 Scopus citations

Abstract

Electrically conductive polymers, such as polypyrrole (PPy), show promise for modifying the dimensions and properties of micro- and nanoscale structures. Mechanisms for controlling the formation of PPy films of nanoscale thickness were evaluated by electrochemically synthesizing and examining PPy films on planar gold electrodes under a variety of growth conditions. Tunable PPy coatings were then deposited by electropolymerization on the sidewalls of individual, electrically addressable carbon nanofibers (CNFs). The ability to modify the physical size of specific nanofibers in controllable fashion is demonstrated. The biocompatibility, potential for chemical functionalization, and ability to effect volume changes of this nanocomposite can lead to advanced functionality, such as specific, nanoscale valving of materials and morphological control at the nanoscale.

Original language	English
Pages (from-to)	282-289
Number of pages	8
Journal	Synthetic Metals
Volume	157
Issue number	6-7
DOIs	https://doi.org/10.1016/j.synthmet.2007.03.004
State	Published - Apr 2007

Funding

This research was supported by NIH Grant EB000657 and by an administrative supplement for Quantitative Physical Measurements at the Nanoscale. A portion of this research was conducted at the Center for Nanophase Materials Sciences, which is sponsored at Oak Ridge National Laboratory by the Division of Scientific User Facilities, U.S. Department of Energy. MLS acknowledges support from the Material Sciences and Engineering Division Program of the DOE Office of Science. This work was performed at the Oak Ridge National Laboratory, managed by UT-Battelle, LLC, for the U.S. DOE under Contract No. DE-AC05-00OR22725.

Funders	Funder number
Quantitative Physical Measurements
National Institutes of Health	EB000657
U.S. Department of Energy	DE-AC05-00OR22725
Office of Science
Basic Energy Sciences
Oak Ridge National Laboratory

Keywords

Carbon nanofibers
Electropolymerization
Nanomaterial
Polypyrrole
Surface modification

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10.1016/j.synthmet.2007.03.004

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title = "Controlling the dimensions of carbon nanofiber structures through the electropolymerization of pyrrole",

abstract = "Electrically conductive polymers, such as polypyrrole (PPy), show promise for modifying the dimensions and properties of micro- and nanoscale structures. Mechanisms for controlling the formation of PPy films of nanoscale thickness were evaluated by electrochemically synthesizing and examining PPy films on planar gold electrodes under a variety of growth conditions. Tunable PPy coatings were then deposited by electropolymerization on the sidewalls of individual, electrically addressable carbon nanofibers (CNFs). The ability to modify the physical size of specific nanofibers in controllable fashion is demonstrated. The biocompatibility, potential for chemical functionalization, and ability to effect volume changes of this nanocomposite can lead to advanced functionality, such as specific, nanoscale valving of materials and morphological control at the nanoscale.",

keywords = "Carbon nanofibers, Electropolymerization, Nanomaterial, Polypyrrole, Surface modification",

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AU - McKnight, Timothy E.

AU - Fowlkes, Jason D.

AU - Allison, David P.

AU - Simpson, Michael L.

AU - Doktycz, Mitchel J.

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AB - Electrically conductive polymers, such as polypyrrole (PPy), show promise for modifying the dimensions and properties of micro- and nanoscale structures. Mechanisms for controlling the formation of PPy films of nanoscale thickness were evaluated by electrochemically synthesizing and examining PPy films on planar gold electrodes under a variety of growth conditions. Tunable PPy coatings were then deposited by electropolymerization on the sidewalls of individual, electrically addressable carbon nanofibers (CNFs). The ability to modify the physical size of specific nanofibers in controllable fashion is demonstrated. The biocompatibility, potential for chemical functionalization, and ability to effect volume changes of this nanocomposite can lead to advanced functionality, such as specific, nanoscale valving of materials and morphological control at the nanoscale.

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Controlling the dimensions of carbon nanofiber structures through the electropolymerization of pyrrole

Abstract

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Keywords

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