Unveiling the Interface Structure of the Exsolved Co–Fe Alloy Nanoparticles from Double Perovskite and Its Application in Solid Oxide Fuel Cells

2021 ◽  
Author(s):  
Zhihong Du ◽  
Yue Gong ◽  
Hailei Zhao ◽  
Yang Zhang ◽  
Sha Yi ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Double Perovskite ◽  
Interface Structure ◽  
Solid Oxide ◽  
Alloy Nanoparticles ◽  
Oxide Fuel

Self-assembled alloy nanoparticles in a layered double perovskite as a fuel oxidation catalyst for solid oxide fuel cells

2018 ◽  
Vol 6 (33) ◽  
pp. 15947-15953 ◽  
Author(s):  
Ohhun Kwon ◽  
Kyeounghak Kim ◽  
Sangwook Joo ◽  
Hu Young Jeong ◽  
Jeeyoung Shin ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Double Perovskite ◽  
Solid Oxide ◽  
Oxidation Catalyst ◽  
Alloy Nanoparticles ◽  
Oxide Fuel ◽  
Fuel Oxidation ◽  
Ni Alloy ◽  
Perovskite Material

Co and Ni are exsolved separately from the bulk, and then aggregate to form a Co–Ni alloy at the surface of a perovskite material.

scholarly journals Undoped Sr2MMoO6 Double Perovskite Molybdates (M = Ni, Mg, Fe) as Promising Anode Materials for Solid Oxide Fuel Cells

Materials ◽  
2021 ◽  
Vol 14 (7) ◽  
pp. 1715
Author(s):  
Lubov Skutina ◽  
Elena Filonova ◽  
Dmitry Medvedev ◽  
Antoine Maignan
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Anode Materials ◽  
Functional Materials ◽  
Double Perovskite ◽  
Solid Oxide ◽  
Sulfur Poisoning ◽  
Oxide Fuel ◽  
Fundamental Properties ◽  
Main Emphasis

The chemical design of new functional materials for solid oxide fuel cells (SOFCs) is of great interest as a means for overcoming the disadvantages of traditional materials. Redox stability, carbon deposition and sulfur poisoning of the anodes are positioned as the main processes that result in the degradation of SOFC performance. In this regard, double perovskite molybdates are possible alternatives to conventional Ni-based cermets. The present review provides the fundamental properties of four members: Sr2NiMoO6-δ, Sr2MgMoO6-δ, Sr2FeMoO6-δ and Sr2Fe1.5Mo0.5O6-δ. These properties vary greatly depending on the type and concentration of the 3d-element occupying the B-position of A2BB’O6. The main emphasis is devoted to: (i) the synthesis features of undoped double molybdates, (ii) their electrical conductivity and thermal behaviors in both oxidizing and reducing atmospheres, as well as (iii) their chemical compatibility with respect to other functional SOFC materials and components of gas atmospheres. The information provided can serve as the basis for the design of efficient fuel electrodes prepared from complex oxides with layered structures.

scholarly journals Oxygen permeation, thermal expansion behavior and electrochemical properties of LaBa0.5Sr0.5Co2O5+δ cathode for SOFCs

RSC Advances ◽  
2017 ◽  
Vol 7 (24) ◽  
pp. 14487-14495 ◽  
Author(s):  
Adi Subardi ◽  
Kun-Yu Liao ◽  
Yen-Pei Fu
Keyword(s):  
Thermal Expansion ◽  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Electrochemical Properties ◽  
Double Perovskite ◽  
Oxygen Permeation ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Thermal Expansion Behavior ◽  
Expansion Behavior

In this study, the double perovskite LaBa0.5Sr0.5Co2O5+δ (LBSC55) is investigated as a potential cathode for solid oxide fuel cells (SOFCs).

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