Exsolved Fe–Ni nano-particles from Sr2Fe1.3Ni0.2Mo0.5O6 perovskite oxide as a cathode for solid oxide steam electrolysis cells

2016 ◽  
Vol 4 (37) ◽  
pp. 14163-14169 ◽  
Author(s):  
Y. Wang ◽  
T. Liu ◽  
M. Li ◽  
C. Xia ◽  
B. Zhou ◽  
...  
Keyword(s):  
Single Step ◽  
Solid Oxide ◽  
Nano Particles ◽  
Perovskite Oxide ◽  
Electrolysis Cells ◽  
Catalytically Active

A stable and catalytically active cathode consisting of homogeneously dispersed nano-socketed Fe–Ni particles has been elegantly fabricated in single-step treatment for solid oxide steam electrolysis cells via the in situ reduction of the Sr2Fe1.3Ni0.2Mo0.5O6 (SFMNi) material in a humidified H2 (3 vol% H2O) atmosphere at 800 °C.

In situ synthesis of a high-performance bismuth oxide based composite cathode for low temperature solid oxide fuel cells

2019 ◽  
Vol 55 (19) ◽  
pp. 2801-2804 ◽  
Author(s):  
Wei Fang ◽  
Tianrang Yang ◽  
Kevin Huang
Keyword(s):  
Low Temperature ◽  
Solid Oxide Fuel Cells ◽  
Bismuth Oxide ◽  
High Performance ◽  
Composite Cathode ◽  
Single Step ◽  
In Situ Synthesis ◽  
Solid Oxide ◽  
Oxide Fuel

A composite cathode consisting of fluorite (Bi0.75Y0.25)0.93Ce0.07O1.5±δ and perovskite La0.8Sr0.2MnO3 is synthesized by in situ single-step phase formation and microstructure assembly.

Layered-perovskite oxides with in-situ exsolved Co-Fe alloy nanoparticles as highly efficient electrode for high-temperature carbon dioxide electrolysis

2021 ◽  
Author(s):  
Xiang Sun ◽  
Yongjian Ye ◽  
Mengzhen Zhou ◽  
Huijun Chen ◽  
Ying Li ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Electrode Materials ◽  
High Efficiency ◽  
Solid Oxide ◽  
Layered Perovskite ◽  
Fast Kinetics ◽  
Electrolysis Cells ◽  
Layered Perovskite Oxides ◽  
Solid Oxide Electrolysis Cells

Carbon dioxide (CO2) reduction using solid oxide electrolysis cells (SOEC) has attracted great attention because of the high efficiency and fast kinetics enabled by the high function temperatures. Electrode materials...

Highly efficient CO2 electrolysis to CO on Ruddlesden-Popper perovskite oxide with in situ exsolved Fe nanoparticles

2021 ◽  
Author(s):  
Junil Choi ◽  
Seongmin Park ◽  
Hyunsu Han ◽  
Minho Kim ◽  
Minseon Park ◽  
...  
Keyword(s):  
Solid Oxide ◽  
Perovskite Oxide ◽  
Electrolysis Cell ◽  
Cathode Catalyst ◽  
Highly Efficient ◽  
Highly Active ◽  
Fe Nanoparticles ◽  
Solid Oxide Electrolysis Cell ◽  
Co2 Electrolysis

We prepared a highly active and stable cathode catalyst for a solid oxide electrolysis cell (SOEC), decorated with in situ exsolved Fe nanoparticles (NPs) socketed on La1.2Sr0.8Mn0.4Fe0.6O4-α (R.P.LSMF), toward CO2...

In-Situ Monitoring of Solid Oxide Electrolysis Cells

2013 ◽  
Vol 58 (2) ◽  
pp. 207-216 ◽  
Author(s):  
D. J. Cumming ◽  
R. Taylor ◽  
J. Manerova ◽  
D. C. Sinclair ◽  
C. Hardacre ◽  
...  
Keyword(s):  
Solid Oxide ◽  
In Situ Monitoring ◽  
Electrolysis Cells ◽  
Solid Oxide Electrolysis ◽  
Solid Oxide Electrolysis Cells

Novel quasi-symmetrical solid oxide electrolysis cells with in-situ exsolved cathode for CO2 electrolysis

2019 ◽  
Vol 31 ◽  
pp. 43-50 ◽  
Author(s):  
Yunfeng Tian ◽  
Lingling Zhang ◽  
Lichao Jia ◽  
Xin Wang ◽  
Jun Yang ◽  
...  
Keyword(s):  
Solid Oxide ◽  
Electrolysis Cells ◽  
Solid Oxide Electrolysis ◽  
Solid Oxide Electrolysis Cells ◽  
Co2 Electrolysis

scholarly journals Perovskite Chromite With In-Situ Assembled Ni-Co Nano-Alloys: A Potential Bifunctional Electrode Catalyst for Solid Oxide Cells

2021 ◽  
Vol 8 ◽  
Author(s):  
Zhishan Li ◽  
Lin Cui ◽  
Jingli Luo ◽  
Jianhui Li ◽  
Yifei Sun
Keyword(s):  
Fuel Cell ◽  
Electrode Materials ◽  
Carbon Deposition ◽  
Solid Oxide ◽  
Perovskite Oxide ◽  
Electrolysis Cell ◽  
Lanthanum Chromite ◽  
Term Operation ◽  
A Site

Solid oxide fuel cell (SOFC) is an advanced electricity generation device with attractive fuel flexibility and conversion efficiency. As its reversed process, solid oxide electrolysis cell (SOEC) can efficiently electrolyze notorious CO2 to valuable chemical product such as CO, by utilizing renewable energy. To achieve long-term operation, the development of catalytically active electrode materials in both SOFC/SOEC modes is highly desirable, yet still challenging. In this research, an A-site deficient perovskite oxide (lanthanum chromite) decorated with in-situ exsolved Ni-Co nano-alloy has been fabricated and applied as a potential fuel electrode for both SOFC/SOEC. The influences of A-site non-stoichiometry and B-site dopant concentration on structural properties and in-situ exsolution process have been elaborately studied from various aspects. Diverse characterizations collectively confirm that the existence of A-site deficiency helps the formation of oxygen vacancies and stimulates the exsolution of B-site cations. In addition, the synergistic effect between the dopants of Co and Ni manipulates the reducibility and promotes carbon deposition resistance of the material. The electrolyte-supported SOFC with self-assembled Ni-Co nano-alloy electrode has shown maximum power densities of 329 mW/cm2 (in H2) and 258 mW/cm2 (in syngas, H2 + CO) at 850 °C, which are 50% better than those of the fuel cell with the exsolved Ni nanoparticles only. Also, the nano-alloy decorated electrode catalyst promotes a 30% increase in SOEC performance for CO2 electrolysis with prominently enhanced resistance against carbon deposition, suggesting the versatile functionality of the materials.

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