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Flouda P, Quinn AH, Patel AG, et al. Branched aramid nanofiber-polyaniline electrodes for structural energy storage. Nanoscale. 2020;12(32):16840-16850doi: 10.1039/d0nr04573j.
Flouda, P., Quinn, A. H., Patel, A. G., Loufakis, D., Lagoudas, D. C., & Lutkenhaus, J. L. (2020). Branched aramid nanofiber-polyaniline electrodes for structural energy storage. Nanoscale, 12(32), 16840-16850. https://doi.org/10.1039/d0nr04573j
Flouda, Paraskevi, et al. "Branched aramid nanofiber-polyaniline electrodes for structural energy storage." Nanoscale vol. 12,32 (2020): 16840-16850. doi: https://doi.org/10.1039/d0nr04573j
Flouda P, Quinn AH, Patel AG, Loufakis D, Lagoudas DC, Lutkenhaus JL. Branched aramid nanofiber-polyaniline electrodes for structural energy storage. Nanoscale. 2020 Aug 20;12(32):16840-16850. doi: 10.1039/d0nr04573j. PMID: 32760998.
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Nanoscale. 2020 Aug 20;12(32):16840-16850. doi: 10.1039/d0nr04573j.

Branched aramid nanofiber-polyaniline electrodes for structural energy storage.

Nanoscale

Paraskevi Flouda, Alexander H Quinn, Anish G Patel, Dimitrios Loufakis, Dimitris C Lagoudas, Jodie L Lutkenhaus

Affiliations

  1. Department of Materials Science and Engineering, Texas A&M University, College Station, TX 77843, USA. [email protected].
  2. Artie McFerrin Department of Chemical Engineering Texas A&M University, College Station, TX 77843, USA.
  3. Department of Materials Science and Engineering, Texas A&M University, College Station, TX 77843, USA. [email protected] and Department of Aerospace Engineering, Texas A&M University, College Station, TX 77843, USA.
  4. Department of Materials Science and Engineering, Texas A&M University, College Station, TX 77843, USA. [email protected] and Artie McFerrin Department of Chemical Engineering Texas A&M University, College Station, TX 77843, USA.

PMID: 32760998 DOI: 10.1039/d0nr04573j

Abstract

Strong electrodes with good energy storage capabilities are necessary to accommodate the current needs for structural and flexible electronics. To this end, conjugated polymers such as polyaniline (PANI) have attracted much attention due to their exceptional energy storage performance. However, PANI is typically brittle and requires the use of substrates for structural support. Here, we report a strategy for developing free-standing structural supercapacitor and battery electrodes based on PANI. More specifically, aniline is polymerized in the presence of branched aramid nanofibers (BANFs) and single walled carbon nanotubes (SWCNTs). This results in a network morphology that allows for efficient load transfer and electron transport, leading to electrodes with capacity values up to 128 ± 5 mA h g-1 (vs. a theoretical capacity of 147 mA h g-1), Young's modulus of 4 ± 0.5 GPa, and tensile strength of 40 ± 4 MPa. Furthermore, the charge storage mechanism is investigated, in which both Faradaic and non-Faradaic contributions are observed. This work demonstrates an efficient strategy for designing structural electrodes based on conjugated polymers.

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