University of Surrey

Test tubes in the lab Research in the ATI Dance Research

One-step wet-spinning process of CB/CNT/MnO2 nanotubes hybrid flexible fibres as electrodes for wearable supercapacitors

Garcia-Torres, Jose, Roberts, Alexander J., Slade, Robert C.T. and Crean, Carol (2019) One-step wet-spinning process of CB/CNT/MnO2 nanotubes hybrid flexible fibres as electrodes for wearable supercapacitors Electrochimica Acta, 296. pp. 481-490.

[img] Text
One-step wet-spinning process.doc - Accepted version Manuscript

Download (1MB)

Abstract

Fibres made from different nanostructured carbons (carbon black (CB)), carbon nanotubes (CNT) and CB/CNT were successfully developed by wet-spinning. The variation of dispersion conditions (carbon nanomaterial concentration, dispersant/Carbon nanomaterial concentration ratio, CB/CNT concentration ratio, pH) resulted in different electrochemical performance for each type of fibres. Fibres with the best capacitance values (10 F g-1) and good cycling stability (89%) were obtained from fibres containing 10% carbon black and 90% carbon nanotubes. A solid-state supercapacitor was fabricated by assembling the CB/CNT fibres resulting in 9.2 F g-1 electrode capacitance. Incorporation of 0.2 wt.% birnessite-type potassium manganese oxide nanotubes dramatically increased the capacitance of the fibres up to 246 F g-1 due to the high specific capacitance of birnessite phase and the tubular nature of the nanomaterial.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Chemistry
Authors :
NameEmailORCID
Garcia-Torres, Jose
Roberts, Alexander J.
Slade, Robert C.T.
Crean, Carolc.crean@surrey.ac.uk
Date : 10 February 2019
Funders : Engineering and Physical Sciences Research Council (EPSRC)
DOI : 10.1016/j.electacta.2018.10.201
Grant Title : Advanced fibre-based energy storage for wearable applications
Copyright Disclaimer : © 2018. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
Uncontrolled Keywords : Carbon nanomaterials; Birnessite MnO2 nanotubes; Wet-spinning; Flexible fibre; Solid-state supercapacitor
Related URLs :
Depositing User : Clive Harris
Date Deposited : 07 Nov 2018 14:11
Last Modified : 10 Nov 2019 02:08
URI: http://epubs.surrey.ac.uk/id/eprint/849833

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year


Information about this web site

© The University of Surrey, Guildford, Surrey, GU2 7XH, United Kingdom.
+44 (0)1483 300800