001     1017831
005     20240708132725.0
024 7 _ |a 10.1149/MA2023-01402826mtgabs
|2 doi
024 7 _ |a 1091-8213
|2 ISSN
024 7 _ |a 2151-2043
|2 ISSN
037 _ _ |a FZJ-2023-04354
041 _ _ |a English
082 _ _ |a 540
100 1 _ |a Kwati, Leonard
|0 P:(DE-Juel1)200422
|b 0
|e Corresponding author
111 2 _ |a Electrochemical Society Meeting Abstracts 243
|g 243rd ECS Meeting
|c Boston
|d 2023-05-28 - 2023-06-02
|w USA
245 _ _ |a Catalytic Activity of LnCo 0.5 Ni 0.5 O 3-Δ (Ln = La, Pr, Nd) 'Positrodes' on Ceramic Protonic Electrolytes
260 _ _ |c 2023
336 7 _ |a Abstract
|b abstract
|m abstract
|0 PUB:(DE-HGF)1
|s 1699351643_18726
|2 PUB:(DE-HGF)
336 7 _ |a Conference Paper
|0 33
|2 EndNote
336 7 _ |a INPROCEEDINGS
|2 BibTeX
336 7 _ |a conferenceObject
|2 DRIVER
336 7 _ |a Output Types/Conference Abstract
|2 DataCite
336 7 _ |a OTHER
|2 ORCID
520 _ _ |a Proton-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.
536 _ _ |a 1232 - Power-based Fuels and Chemicals (POF4-123)
|0 G:(DE-HGF)POF4-1232
|c POF4-123
|f POF IV
|x 0
588 _ _ |a Dataset connected to CrossRef, Journals: juser.fz-juelich.de
700 1 _ |a Staykov, Aleksandar
|0 P:(DE-HGF)0
|b 1
700 1 _ |a Wiff, Juan Paulo
|0 P:(DE-HGF)0
|b 2
700 1 _ |a Meulenberg, Wilhelm
|0 P:(DE-Juel1)129637
|b 3
|u fzj
700 1 _ |a Matsumoto, Hiroshige
|0 P:(DE-HGF)0
|b 4
773 _ _ |a 10.1149/MA2023-01402826mtgabs
|0 PERI:(DE-600)2438749-6
|y 2023
|g Vol. MA2023-01, no. 40, p. 2826 - 2826
|x 2151-2043
909 C O |o oai:juser.fz-juelich.de:1017831
|p VDB
910 1 _ |a Forschungszentrum Jülich
|0 I:(DE-588b)5008462-8
|k FZJ
|b 3
|6 P:(DE-Juel1)129637
913 1 _ |a DE-HGF
|b Forschungsbereich Energie
|l Materialien und Technologien für die Energiewende (MTET)
|1 G:(DE-HGF)POF4-120
|0 G:(DE-HGF)POF4-123
|3 G:(DE-HGF)POF4
|2 G:(DE-HGF)POF4-100
|4 G:(DE-HGF)POF
|v Chemische Energieträger
|9 G:(DE-HGF)POF4-1232
|x 0
914 1 _ |y 2023
920 1 _ |0 I:(DE-Juel1)IEK-1-20101013
|k IEK-1
|l Werkstoffsynthese und Herstellungsverfahren
|x 0
980 _ _ |a abstract
980 _ _ |a VDB
980 _ _ |a I:(DE-Juel1)IEK-1-20101013
980 _ _ |a UNRESTRICTED
981 _ _ |a I:(DE-Juel1)IMD-2-20101013


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