Kok, MDR;
Jervis, R;
Shearing, PR;
Gostick, JT;
(2017)
Fluid Transport Properties from 3D Tomographic Images of Electrospun Carbon Electrodes for Flow Batteries.
In: Manivannan, M and Narayan, S and Kostecki, R and Johnson, C and Atanassov, PB, (eds.)
ECS Transactions.
(pp. pp. 129-143).
Electrochemical Society (ECS)
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Abstract
Three-dimensional x-ray computer tomography images were obtained of electrospun poly(acrylonitrile) electrodes for a flow battery. The materials were imaged before and after carbonization. Information about the internal morphology; local fiber size and porosity, was analyzed and provided key insights into both the electrospinning and carbonizing processes. It was found that traditional imaging techniques may not be suitable for materials generated through electrospinning as it is a highly dynamic process. The fiber size tended to vary throughout the process while the porosity was relatively constant. Viscous flow was modelled through the material using the Lattice Boltzmann Method and the 3D flow fields that resulted provided further information about the role of heterogenous features on the performance of an electrospun electrode in a flow battery. The local porosity of the material had the largest effect on the material’s flow dynamics.
| Type: | Proceedings paper |
|---|---|
| Title: | Fluid Transport Properties from 3D Tomographic Images of Electrospun Carbon Electrodes for Flow Batteries |
| Event: | Symposium on Plasma Nano Science and Technology held during the 231st Meeting of the Electrochemical-Society (ECS) |
| Location: | New Orleans, LA |
| Dates: | 28 May 2017 - 01 June 2017 |
| ISBN-13: | 978-1-60768-817-4 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1149/07711.0129ecst |
| Publisher version: | https://doi.org/10.1149/07711.0129ecst |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Chemical Engineering |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10058966 |
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