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3-D inkjet-printed solid oxide electrochemical reactors. II. LSM - YSZ electrodes
File | Description | Size | Format | |
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1-s2.0-S0013468618305978-main.pdf | Published version | 2.75 MB | Adobe PDF | View/Open |
Title: | 3-D inkjet-printed solid oxide electrochemical reactors. II. LSM - YSZ electrodes |
Authors: | Farandos, NM Li, T Kelsall, GH |
Item Type: | Journal Article |
Abstract: | Inkjet printing is an economical additive manufacturing technique with minimal material waste, which offers a high degree of control over vertical resolution, so lending itself well to the fabrication of the functional layers of solid oxide electrochemical reactors. We formulated a printable and stable colloidal dispersion of La0.8Sr0.2MnO3 (LSM) -(Y2O3)0.08(ZrO2)0.92 (YSZ) ink to print sequentially onto an inkjet-printed YSZ electrolyte sintered to a Ni-YSZ substrate to form the cell: Ni-YSZ|YSZ|YSZ-LSM|LSM. After sintering, the electrolyte and YSZ-LSM electrode were 9 and 20 μm thick, respectively. The performances of these reactors were determined as fuel cells, operating with dry H2, and as electrolysers, operating with CO/CO2 in the ratio 1/9. At 788 °C, the peak fuel cell power density was 0.69 W cm-2, and at a cell potential difference of 1.5 V, the electrolysis current density was 3.3 A cm-2, indicating that the performance of inkjet-printed YSZ-LSM electrodes can exceed those fabricated by conventional powder mixing processes. |
Issue Date: | 16-Mar-2018 |
Date of Acceptance: | 15-Mar-2018 |
URI: | http://hdl.handle.net/10044/1/58594 |
DOI: | https://dx.doi.org/10.1016/j.electacta.2018.03.095 |
ISSN: | 0013-4686 |
Publisher: | Elsevier |
Start Page: | 264 |
End Page: | 273 |
Journal / Book Title: | Electrochimica Acta |
Volume: | 270 |
Copyright Statement: | © 2018 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). |
Keywords: | Inkjet printing; reversible solid oxide fuel cell - electrolyser; yttria-stabilised zirconia (YSZ); lanthanum strontium manganite (LSM); CO2 electrolysis 03 Chemical Sciences 09 Engineering 02 Physical Sciences Energy |
Publication Status: | Published |
Online Publication Date: | 2018-04-04 |
Appears in Collections: | Chemical Engineering Faculty of Engineering |