000160962 001__ 160962 000160962 005__ 20251017144550.0 000160962 0247_ $$2doi$$a10.1039/d4ta08962f 000160962 0248_ $$2sideral$$a144145 000160962 037__ $$aART-2025-144145 000160962 041__ $$aeng 000160962 100__ $$aRiaz, Adeel 000160962 245__ $$aHigh performance La<sub>2</sub>NiO<sub>4+<i>δ</i></sub> oxygen and Ni–Ce<sub>0.9</sub>Gd<sub>0.1</sub>O<sub>2−<i>δ</i></sub> fuel electrodes for thin film reversible solid oxide cells 000160962 260__ $$c2025 000160962 5060_ $$aAccess copy available to the general public$$fUnrestricted 000160962 5203_ $$aThin film reversible solid oxide cells (TF-rSOCs) are attracting a great deal of interest as they promise to operate at much lower temperatures (400–600 °C) than state-of-the-art commercial fuel electrode-supported cells (600–800 °C). However, in all-ceramics TF-rSOCs the high polarization resistance of the electrodes limits the cell performance. To overcome this limitation, high performing oxygen and fuel electrodes were selected and their nanostructure was optimized. Thin nanoporous films of La2NiO4+δ were deposited as oxygen electrode by Pulsed Injection Metal Organic Chemical Vapor Deposition (PI-MOCVD) with different thickness. As for the fuel electrode, thin films of Ni–Ce0.9Gd0.1O2−δ (NiCGO) were deposited by Pulsed Laser Deposition (PLD) at various temperatures and pO2. The electrochemical activity of the oxygen and fuel electrodes was measured by Electrical Conductivity Relaxation (ECR) and Electrochemical Impedance Spectroscopy (EIS), respectively. The optimized electrodes were then deposited on a YSZ single crystal electrolyte and the cell was measured in fuel cell and electrolysis modes showing high performance with a power density of 70 mW cm−2 at 0.7 V and a current density of −44 mA cm−2 at 1.3 V at a low operating temperature of 600 °C. These results demonstrate the potential of using these materials as electrodes in TF-rSOCs. 000160962 536__ $$9info:eu-repo/grantAgreement/ES/DGA/T02-23R$$9info:eu-repo/grantAgreement/EC/H2020/101017709/EU/Thin Film Reversible Solid Oxide Cells for Ultracompact Electrical Energy Storage/EPISTORE$$9This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 101017709-EPISTORE$$9info:eu-repo/grantAgreement/EC/H2020/824072/EU/Energy HarveStorers for Powering the Internet of Things/HARVESTORE$$9This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 824072-HARVESTORE$$9info:eu-repo/grantAgreement/ES/AEI/MICNN/PID2022-137626OB-C31 000160962 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc$$uhttps://creativecommons.org/licenses/by-nc/4.0/deed.es 000160962 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion 000160962 700__ $$aSirvent, Juande 000160962 700__ $$aZueco-Vincelle, Juan 000160962 700__ $$aBuzi, Fjorelo 000160962 700__ $$aPanisset, Silvère 000160962 700__ $$aStangl, Alexander 000160962 700__ $$aRapenne, Laetitia 000160962 700__ $$aBaiutti, Federico 000160962 700__ $$aMermoux, Michel 000160962 700__ $$0(orcid)0000-0002-7819-8956$$aLaguna-Bercero, Miguel Angel 000160962 700__ $$aTarancón, Albert 000160962 700__ $$aBurriel, Mónica 000160962 773__ $$g(2025), [13 pp.]$$pJ. mater. chem. A$$tJournal of Materials Chemistry A$$x2050-7488 000160962 787__ $$tHigh Performance La2NiO4+d Oxygen and Ni-Ce0.9Gd0.1O2-d Fuel Electrodes for Thin Film Reversible Solid Oxide Cells$$whttps://zenodo.org/records/15402718 000160962 8564_ $$s4772266$$uhttps://zaguan.unizar.es/record/160962/files/texto_completo.pdf$$yVersión publicada 000160962 8564_ $$s2802345$$uhttps://zaguan.unizar.es/record/160962/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada 000160962 909CO $$ooai:zaguan.unizar.es:160962$$particulos$$pdriver 000160962 951__ $$a2025-10-17-14:11:39 000160962 980__ $$aARTICLE