Co-extrusion of electrolyte/anode functional layer/anode triple-layer ceramic hollow fibres for micro-tubular solid oxide fuel cells–electrochemical performance study

2015 ◽  
Vol 273 ◽  
pp. 999-1005 ◽  
Author(s):  
Tao Li ◽  
Zhentao Wu ◽  
K. Li
Keyword(s):  
Fuel Cells ◽  
Electrochemical Performance ◽  
Solid Oxide Fuel Cells ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Performance Study ◽  
Functional Layer ◽  
Hollow Fibres ◽  
Triple Layer

Influence of cathode functional layer composition on electrochemical performance of solid oxide fuel cells

2016 ◽  
Vol 20 (9) ◽  
pp. 2575-2580 ◽  
Author(s):  
Antônio de Pádua Lima Fernandes ◽  
Eric Marsalha Garcia ◽  
Rubens Moreira de Almeida ◽  
Hosane Aparecida Taroco ◽  
Edyth Priscilla Campos Silva ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Electrochemical Performance ◽  
Solid Oxide Fuel Cells ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Functional Layer ◽  
Layer Composition

Controlling Porosity of Anode Support in Tubular Solid Oxide Fuel Cells by Freeze Casting

2020 ◽  
Vol 17 (4) ◽  
Author(s):  
Benjamin Emley ◽  
Dhruba Panthi ◽  
Yanhai Du ◽  
Yan Yao
Keyword(s):  
Fuel Cells ◽  
Electrochemical Performance ◽  
Solid Oxide Fuel Cells ◽  
Concentration Polarization ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Freeze Casting ◽  
Lanthanum Strontium Manganite ◽  
Functional Layer ◽  
Anode Support

Abstract Precise porosity control is highly desirable for improving the electrochemical performance of solid oxide fuel cells (SOFCs). Freeze casting is an established method for enabling high bulk porosity in structures and controlling pore orientation. In this study, freeze casting was used to fabricate tubular, anode-supported SOFCs with aligned and varying amounts of porosity by controlling the solids/water ratio in different casting slurries. SOFCs were prepared with a Ni/yttria and scandia stabilized zirconia (ScYSZ) anode support (AS), an anode functional layer (AFL), a ScYSZ electrolyte, a lanthanum strontium manganite (LSM)/ScYSZ cathode interlayer (CIL), and an LSM cathode. The permeability of the anode support was found to increase from 1.4 × 10−2 to 1.8 × 10−2 m2 as porosity was increased from 57 to 64 vol%, while the total cell resistance decreased by 35% from 0.93 to 0.60 Ohm cm2. When evaluated with 30 vol% H2 as the fuel at 800 °C, the decrease of concentration polarization enabled an increase in electrochemical performance by 42% from 0.35 to 0.50 W/cm2 as the porosity in the anode support was increased. Mechanical strength characterization using a three-point method showed there is a practical upper limit of the amount of porosity that can be designed into the anode support. This work paves a way for controlling porosity by freeze casting and understanding the correlation between porosity and concentration polarization losses in SOFCs.

Effect of an Anode Functional Layer on Cell Performance of Anode-Supported Solid Oxide Fuel Cells by a Decalcomania Method

2013 ◽  
Vol 51 (2) ◽  
pp. 125-130 ◽  
Author(s):  
Sun-Min Park ◽  
Hae-Ran Cho ◽  
Byung-Hyun Choi ◽  
Yong-Tae An ◽  
Ja-Bin Koo ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Solid Oxide ◽  
Cell Performance ◽  
Oxide Fuel ◽  
Functional Layer

Dual-layer hollow fibres with different anode structures for micro-tubular solid oxide fuel cells

2012 ◽  
Vol 205 ◽  
pp. 272-280 ◽  
Author(s):  
Mohd Hafiz Dzarfan Othman ◽  
Nicolas Droushiotis ◽  
Zhentao Wu ◽  
Geoff Kelsall ◽  
K. Li
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Hollow Fibres
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