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Pathway to high performance, low temperature thin-film solid oxide cells grown on porous anodised aluminium oxide
Univ Cambridge, England.
Univ Cambridge, England.
Purdue Univ, IN 47907 USA.
Purdue Univ, IN 47907 USA.
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2024 (English)In: Nano Energy, ISSN 2211-2855, E-ISSN 2211-3282, Vol. 119, article id 109049Article in journal (Refereed) Published
Abstract [en]

Reversible solid oxide cells (rSOCs) present a promising solution to future energy challenges through the efficient conversion between electrical and chemical energy. To date, the benefits of rSOC technology have been off-limits to portable power and electrolysis applications due to the excessive polarisation resistance of the oxygen electrode at low temperatures, characterised by high area specific resistance (ASR) values below 500 degrees C. In this work we demonstrate growth of symmetric and complete rSOC structures based on state-of-the-art vertically aligned nanocomposite (VAN) films grown by pulsed laser deposition (PLD) on porous Pt-coated anodised aluminium oxide (AAO) substrates. The symmetric rSOC structures give the first demonstration of an rSOC oxygen electrode with ASR below 0.1 ohm cm2 at temperatures less than 450 degrees C. This is achieved through oxygen vacancy tuning by annealing, as confirmed by Time-of-Flight Elastic Recoil Detection Analysis (ToF-ERDA) and Rutherford Backscattering Spectrometry (RBS) measurements. Thus, the present work describes a promising route towards future high-performance rSOC devices for portable power applications.

Place, publisher, year, edition, pages
ELSEVIER , 2024. Vol. 119, article id 109049
Keywords [en]
Vertically aligned nanocomposite film; Solid oxide cell; Oxygen vacancy; High-performance; Pulsed laser deposition
National Category
Materials Chemistry
Identifiers
URN: urn:nbn:se:liu:diva-199718DOI: 10.1016/j.nanoen.2023.109049ISI: 001110896700001OAI: oai:DiVA.org:liu-199718DiVA, id: diva2:1821519
Note

Funding Agencies|European Union; Royal Academy of Engineering Chair in Emerging technologies [101017709]; EPSRC Centre of Advanced Materials for Integrated Energy Systems (CAM-IES) [CIET1819_24]; EU-H2020-ERC-ADG EROS [EP/P007767/1]; EPSRC [882929]; Sir Henry Royce Institute [EP/R513180/1]; U.S. National Science Foundation [EP/R00661X/1]; Swedish Research Council (VR) [DMR-1809520, DMR-2016453]; [2019-00191]; [2021-00357]

Available from: 2023-12-20 Created: 2023-12-20 Last updated: 2024-09-19

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Bakhit, Babak
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Thin Film PhysicsFaculty of Science & Engineering
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