One-step wet-spinning process of CB/CNT/MnO2 nanotubes hybrid flexible fibres as electrodes for wearable supercapacitors
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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.
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One-step wet-spinning process.doc - Accepted version Manuscript Download (1MB) |
Official URL: https://doi.org/10.1016/j.electacta.2018.10.201
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 | |||||||||||||||
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| Divisions : | Faculty of Engineering and Physical Sciences > Chemistry | |||||||||||||||
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| 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 | |||||||||||||||
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| 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 |
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