Integration of UV-cured Ionogel Electrolyte with Carbon Paper Electrodes

Stephanie Flores Zopf; Matthew J. Panzer; Stephanie Flores Zopf; Matthew J. Panzer

doi:10.3934/matersci.2014.1.59

AIMS Materials Science

2014, Volume 1, Issue 1: 59-69. doi: 10.3934/matersci.2014.1.59

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Research article

Integration of UV-cured Ionogel Electrolyte with Carbon Paper Electrodes

Stephanie Flores Zopf ,
Matthew J. Panzer ^,

Department of Chemical & Biological Engineering, Tufts University, Medford, MA 02155, USA

Received: 12 November 2013 Accepted: 18 February 2014 Published: 21 February 2014

A test bed with a coplanar architecture is employed to investigate the integration of an in situ cross-linked, polymer-supported ionogel with several commercially available, high surface area carbon paper electrodes. Specifically, a UV-cured poly(ethylene glycol) diacrylate (PEGDA)-supported ionogel electrolyte film is formed in situ against a variety of porous electrodes comprising: a carbon fiber paper, a carbon aerogel paper, and four carbon nanotube-based papers. Electrochemical impedance spectroscopy measurements reveal that the relative performance of a particular carbon paper with the neat ionic liquid is not necessarily indicative of its behavior when integrated with the solid ionogel electrolyte. The coplanar test bed can therefore serve as a useful tool to help guide the selection of suitable carbon-based electrode structures for supercapacitors that incorporate UV-cured ionogels created in situ for wearable energy storage applications.
- supercapacitor,
- ionogel,
- ionic liquid,
- carbon paper,
- energy storage
Citation: Stephanie Flores Zopf, Matthew J. Panzer. Integration of UV-cured Ionogel Electrolyte with Carbon Paper Electrodes[J]. AIMS Materials Science, 2014, 1(1): 59-69. doi: 10.3934/matersci.2014.1.59

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Abstract

A test bed with a coplanar architecture is employed to investigate the integration of an in situ cross-linked, polymer-supported ionogel with several commercially available, high surface area carbon paper electrodes. Specifically, a UV-cured poly(ethylene glycol) diacrylate (PEGDA)-supported ionogel electrolyte film is formed in situ against a variety of porous electrodes comprising: a carbon fiber paper, a carbon aerogel paper, and four carbon nanotube-based papers. Electrochemical impedance spectroscopy measurements reveal that the relative performance of a particular carbon paper with the neat ionic liquid is not necessarily indicative of its behavior when integrated with the solid ionogel electrolyte. The coplanar test bed can therefore serve as a useful tool to help guide the selection of suitable carbon-based electrode structures for supercapacitors that incorporate UV-cured ionogels created in situ for wearable energy storage applications.

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