scholarly journals Enhancement of SOFC Cathode Electrochemical Performance Using Multi-Phase Interfaces

2015 ◽  
Author(s):  
Dane Morgan
Keyword(s):  
Electrochemical Performance ◽  
Sofc Cathode ◽  
Multi Phase

Electrochemical Performance of a Nd2-xSrxNiO4+δ/GDC(x = 0, 0.4, 0.6) as a SOFC Cathode Material

2014 ◽  
Vol 51 (1) ◽  
pp. 51-56
Author(s):  
Kyoung-Jin Lee ◽  
Jeong-Uk Seo ◽  
Ye-Sol Lim ◽  
Hae-Jin Hwang
Keyword(s):  
Electrochemical Performance ◽  
Cathode Material ◽  
Sofc Cathode

Effect of SO2 on the Performance of LSCF Cathode

2014 ◽  
Vol 902 ◽  
pp. 41-44 ◽  
Author(s):  
Run Ru Liu ◽  
De Jun Wang ◽  
Leng Jing
Keyword(s):  
Electrochemical Performance ◽  
Microstructural Change ◽  
Cell Performance ◽  
Sulfur Poisoning ◽  
Constant Current ◽  
Sofc Cathode ◽  
Galvanic Current ◽  
Constant Current Density ◽  
Poisoning Effect

Sulfur poisoning effect on the electrochemical performance and long-term durability of SOFC cathode has been investigated for La0.6Sr0.4Co0.2Fe0.8O3(LSCF) by Galvanic Current Interruption (GCI) technology. Cell performance was measured supplying with SO2-containing air to the cathode under a constant current density of 200 mA cm-2. At 800 °C, LSCF cathode showed low tolerance to the sulfur poisoning. SO2tends to react with strontium in LSCF material resulting in the formation of SrSO4in the cathode. This reaction gave rise to microstructural change in the cathode and caused gradual degradation of cell performance.

Electrochemical Performance of a Nd2-xSrxNiO4+δ/GDC(x = 0, 0.4, 0.6) as a SOFC Cathode Material

2014 ◽  
Vol 51 (1) ◽  
pp. 51-56 ◽  
Author(s):  
Kyoung-Jin Lee ◽  
Jeong-Uk Seo ◽  
Ye-Sol Lim ◽  
Hae-Jin Hwang
Keyword(s):  
Electrochemical Performance ◽  
Cathode Material ◽  
Sofc Cathode

Electrochemical performance and degradation of (La0.6Sr0.4)0.99CoO3−δ as porous SOFC-cathode

2008 ◽  
Vol 179 (27-32) ◽  
pp. 1422-1426 ◽  
Author(s):  
Per Hjalmarsson ◽  
Martin Søgaard ◽  
Mogens Mogensen
Keyword(s):  
Electrochemical Performance ◽  
Sofc Cathode

Improving the Electrochemical Performance of Li-Ion Secondary Batteries by Optimizing the Sn/C Composite Anode Materials

2012 ◽  
Vol 521 ◽  
pp. 207-224
Author(s):  
Yu Sheng Lin ◽  
Jenq Gong Duh
Keyword(s):  
Electrochemical Performance ◽  
Anode Materials ◽  
Cycling Performance ◽  
Charge Capacity ◽  
Graphite Composite ◽  
Chemical Solution Method ◽  
History Of ◽  
Buffering Agent ◽  
Composite Anodes ◽  
Multi Phase

From the history of commercial anode materials, Sn/C-based material is the focus to enhance the cycling performance. A chemical solution method is used to synthesize the Sn compounds / graphite composite anodes. At the first part of this study, the cycle life was enhanced by adjusting various pH values. The multi-phase Sn compound containing Sn6O4(OH)4, SnO2, Sn3(PO4)2were deposited on slices of graphite of sample pH6. They were expected to provide a higher spectator to Sn ratio for improved cycleability. These phases could be reduced to metallic Sn, resulting in buffer matrix during 1stcycle. Therefore, the sample pH6 exhibited the best of electrochemical performance. For the cell cycled between 0.001V and 1.5V, the 1stcharge capacity was 758 mAhg-1. Even after 50 cycles, the capacity remained higher than 460 mAhg-1. Synthesizing Sn compounds / graphite composite anodes at pH6 with different initial Sn concentrations improved the cycling performance in the second part of this study. When the Sn concentration reached 0.12M, multi-phases of Sn compounds were deposited on the slices of graphite and the amount of Sn was the maximum. The agglomeration of Sn clusters was suppressed by buffering agent generated by the multi-phase of Sn compounds containing Sn6O4(OH)4, SnO2, Sn3(PO4)2. Therefore, the sample Sn0.12 M exhibitedthe best cycling behavior among all. During cycling between 0.001 V and 1.5 V, the 1stcharge capacity was around 734 mAhg-1. The capacity remained as high as 440 mAhg-1 even after 50 cycles.

Electrochemical performance of double perovskite Pr2NiMnO6 as a potential IT-SOFC cathode

2015 ◽  
Vol 40 (37) ◽  
pp. 12761-12769 ◽  
Author(s):  
Huan Li ◽  
Li-Ping Sun ◽  
Qiang Li ◽  
Tian Xia ◽  
Hui Zhao ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Double Perovskite ◽  
Sofc Cathode

Design of La2−xPrxNiO4+δ SOFC cathodes: a compromise between electrochemical performance and thermodynamic stability

2017 ◽  
Vol 5 (3) ◽  
pp. 1120-1132 ◽  
Author(s):  
Rakesh K. Sharma ◽  
Seng-Kian Cheah ◽  
Mónica Burriel ◽  
Laurent Dessemond ◽  
Jean-Marc Bassat ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Electrochemical Properties ◽  
Thermodynamic Stability ◽  
Sofc Cathode

A novel architecturally designed LaPrNiO4+δ IT-SOFC cathode shows the best compromise between thermodynamic stability and electrochemical properties.

scholarly journals Structural and microstructural characterization and properties of new phases in the Nd–Sr–Co–(Fe/Mn)–O system as air-electrodes in SOFCs

2017 ◽  
Vol 46 (4) ◽  
pp. 1283-1289 ◽  
Author(s):  
K. Boulahya ◽  
D. Muñoz Gil ◽  
M. Hassan ◽  
S. García Martin ◽  
U. Amador
Keyword(s):  
Electrochemical Performance ◽  
Cathode Materials ◽  
Microstructural Characterization ◽  
Sofc Cathode

Substitution of Sr and Co in Sr2CoO4 yielded new K2NiF4-like oxides with good electrochemical performance as II-SOFC cathode materials.

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