Preparation and Electrochemical Properties of Porous Carbon Nanofiber Electrodes Derived from New Precursor Polymer: 6FDA-TFMB

Byeongil Jeon; Taehwa Ha; Dong Yun Lee; Myung-Seok Choi; Seung Woo Lee; Kyung-Hye Jung

doi:10.3390/polym12081851

Preparation and Electrochemical Properties of Porous Carbon Nanofiber Electrodes Derived from New Precursor Polymer: 6FDA-TFMB

Polymers (Basel). 2020 Aug 18;12(8):1851. doi: 10.3390/polym12081851.

Authors

Byeongil Jeon¹, Taehwa Ha², Dong Yun Lee³, Myung-Seok Choi⁴, Seung Woo Lee², Kyung-Hye Jung¹

Affiliations

¹ School of Advanced Materials and Chemical Engineering, Daegu Catholic University, Gyeongsan 38430, Korea.
² School of Chemical Engineering, Yeungnam Universiry, Gyeonsan 38430, Korea.
³ Department of Polymer Science and Engineering, Kyungpook National University, Daegu 41566, Korea.
⁴ Division of Chemical Engineering, Konkuk University, Seoul 143701, Korea.

Abstract

Porous carbon nanofibers (CNFs) with high energy storage performance were fabricated with a single precursor polymer, 6FDA-TFMB, without the use of any pore-generating materials. 6FDA-TFMB was synthesized, electrospun, and thermally treated to produce binder-free CNF electrodes for electrochemical double-layer capacitors (EDLCs). Highly porous CNFs with a surface area of 2213 m² g^-1 were prepared by steam-activation. CNFs derived from 6FDA-TFMB showed rectangular cyclic voltammograms with a specific capacitance of 292.3 F g^-1 at 10 mV s^-1. It was also seen that CNFs exhibit a maximum energy density of 13.1 Wh kg^-1 at 0.5 A g^-1 and power density of 1.7 kW kg^-1 at 5 A g^-1, which is significantly higher than those from the common precursor polymer, polyacrylonitrile (PAN).

Keywords: 6FDA-TFMB; EDLCs; carbon nanofiber electrodes; electrospinning; porous carbon.

Abstract

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