001017831 001__ 1017831
001017831 005__ 20240708132725.0
001017831 0247_ $$2doi$$a10.1149/MA2023-01402826mtgabs
001017831 0247_ $$2ISSN$$a1091-8213
001017831 0247_ $$2ISSN$$a2151-2043
001017831 037__ $$aFZJ-2023-04354
001017831 041__ $$aEnglish
001017831 082__ $$a540
001017831 1001_ $$0P:(DE-Juel1)200422$$aKwati, Leonard$$b0$$eCorresponding author
001017831 1112_ $$aElectrochemical Society Meeting Abstracts 243$$cBoston$$d2023-05-28 - 2023-06-02$$g243rd ECS Meeting$$wUSA
001017831 245__ $$aCatalytic Activity of LnCo 0.5 Ni 0.5 O 3-Δ (Ln = La, Pr, Nd) 'Positrodes' on Ceramic Protonic Electrolytes
001017831 260__ $$c2023
001017831 3367_ $$0PUB:(DE-HGF)1$$2PUB:(DE-HGF)$$aAbstract$$babstract$$mabstract$$s1699351643_18726
001017831 3367_ $$033$$2EndNote$$aConference Paper
001017831 3367_ $$2BibTeX$$aINPROCEEDINGS
001017831 3367_ $$2DRIVER$$aconferenceObject
001017831 3367_ $$2DataCite$$aOutput Types/Conference Abstract
001017831 3367_ $$2ORCID$$aOTHER
001017831 520__ $$aProton-conducting solid-oxide electrolyzers and fuel cells represent viable, intermediate-temperature green energy conversion and storage technologies. Interest in this class of materials as electrolytes stems from their high ionic conductivity and inherent advantages in the gas flow configuration over traditional solid oxide cells in which the electrolyte is an oxygen ion conductor. However, their commercial viability has been hindered, in part, by the development of corresponding single-phase electrode components with mixed proton-electron conductivity and effective catalytic activity toward oxygen reduction and evolution reactions (ORR/OER). This paper investigates the origin of catalytic activity in LnCo0.5Ni0.5O3-δ (Ln=La, Pr and Nd) perovskites positrodes (positive electrode) by low energy-ion scattering (LEIS) and DFT studies. LEIS results reveal that La, Pr, and Pr cations dominate the outer atomic layer, with profound implications for catalytic activity. Whereas First principle calculations were performed using the plane-wave DFT method and hybrid HSE06 functional suggest, the catalytic activity and electronic properties depend on the valence shell structure of the Ln-site cation and their redox properties.
001017831 536__ $$0G:(DE-HGF)POF4-1232$$a1232 - Power-based Fuels and Chemicals (POF4-123)$$cPOF4-123$$fPOF IV$$x0
001017831 588__ $$aDataset connected to CrossRef, Journals: juser.fz-juelich.de
001017831 7001_ $$0P:(DE-HGF)0$$aStaykov, Aleksandar$$b1
001017831 7001_ $$0P:(DE-HGF)0$$aWiff, Juan Paulo$$b2
001017831 7001_ $$0P:(DE-Juel1)129637$$aMeulenberg, Wilhelm$$b3$$ufzj
001017831 7001_ $$0P:(DE-HGF)0$$aMatsumoto, Hiroshige$$b4
001017831 773__ $$0PERI:(DE-600)2438749-6$$a10.1149/MA2023-01402826mtgabs$$gVol. MA2023-01, no. 40, p. 2826 - 2826$$x2151-2043$$y2023
001017831 909CO $$ooai:juser.fz-juelich.de:1017831$$pVDB
001017831 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)129637$$aForschungszentrum Jülich$$b3$$kFZJ
001017831 9131_ $$0G:(DE-HGF)POF4-123$$1G:(DE-HGF)POF4-120$$2G:(DE-HGF)POF4-100$$3G:(DE-HGF)POF4$$4G:(DE-HGF)POF$$9G:(DE-HGF)POF4-1232$$aDE-HGF$$bForschungsbereich Energie$$lMaterialien und Technologien für die Energiewende (MTET)$$vChemische Energieträger$$x0
001017831 9141_ $$y2023
001017831 9201_ $$0I:(DE-Juel1)IEK-1-20101013$$kIEK-1$$lWerkstoffsynthese und Herstellungsverfahren$$x0
001017831 980__ $$aabstract
001017831 980__ $$aVDB
001017831 980__ $$aI:(DE-Juel1)IEK-1-20101013
001017831 980__ $$aUNRESTRICTED
001017831 981__ $$aI:(DE-Juel1)IMD-2-20101013