Electrical, Chemical, and Electrochemical Properties of Double Perovskite Oxides Sr2Mg1–xNixMoO6−δ as Anode Materials for Solid Oxide Fuel Cells

2014 ◽  
Vol 118 (33) ◽  
pp. 18853-18860 ◽  
Author(s):  
Zhixiang Xie ◽  
Hailei Zhao ◽  
Zhihong Du ◽  
Ting Chen ◽  
Ning Chen
Materials ◽  
2021 ◽  
Vol 14 (7) ◽  
pp. 1715
Author(s):  
Lubov Skutina ◽  
Elena Filonova ◽  
Dmitry Medvedev ◽  
Antoine Maignan

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.


RSC Advances ◽  
2017 ◽  
Vol 7 (24) ◽  
pp. 14487-14495 ◽  
Author(s):  
Adi Subardi ◽  
Kun-Yu Liao ◽  
Yen-Pei Fu

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


2019 ◽  
Vol 7 (2) ◽  
pp. 733-743 ◽  
Author(s):  
Xin Yang ◽  
Jing Chen ◽  
Dhruba Panthi ◽  
Bingbing Niu ◽  
Libin Lei ◽  
...  

Electron doping-induced structure modification of double-perovskite anode material with enhanced electrocatalytic activities for methane oxidation in solid oxide fuel cells.


RSC Advances ◽  
2016 ◽  
Vol 6 (17) ◽  
pp. 13829-13836 ◽  
Author(s):  
Tao Chen ◽  
Shengli Pang ◽  
Xiangqian Shen ◽  
Xuening Jiang ◽  
Wenzhi Wang

Cobalt-free double perovskite oxides are promising cathode materials in intermediate-temperature solid oxide fuel cells, and often suffer from low activity in oxygen reduction reactions.


2014 ◽  
Vol 672-674 ◽  
pp. 696-699
Author(s):  
Xiu Ling Yu ◽  
Xue Li

Fe-based perovskite oxides SrFe1-xSbxO3-δ (SFS, x = 0.05–0.15) have been prepared by a solid-state reaction and studied as novel cathode materials for intermediate temperature solid oxide fuel cells (IT-SOFCs). As SOFC cathodes, the highest electrical conductivity of 100 S cm−1 at 425 oC in air was obtained for the x = 0.05 sample. The area-specific resistances of the SFS ( x = 0.05) cathode on the LSGM electrolyte where at 700 oC is 0.17 Ω cm2. All these results demonstrates that Sb-substituted SFS perovskites materials are promising cheaper alternative cathodes for an IT-SOFC.


2014 ◽  
Vol 257 ◽  
pp. 9-16 ◽  
Author(s):  
Kun Zheng ◽  
Konrad Świerczek ◽  
Wojciech Zając ◽  
Alicja Klimkowicz

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