Preparation and Numerical Simulation of Structural Parameters of Ni–Fe Bimetallic Porous Anode Support for Solid Oxide Fuel Cells

Author(s):  
Xin Gu ◽  
Jie Yu ◽  
Wenhui Ma ◽  
Guoqiang Lv ◽  
Dingwen Kang ◽  
...  
2010 ◽  
Vol 195 (19) ◽  
pp. 6294-6300 ◽  
Author(s):  
Young-Wan Ju ◽  
Hiroyuki Eto ◽  
Toru Inagaki ◽  
Shintaro Ida ◽  
Tatsumi Ishihara

2017 ◽  
Vol 751 ◽  
pp. 467-470 ◽  
Author(s):  
Nutthita Chuankrerkkul ◽  
Sirima Chauoon ◽  
Malinee Meepho ◽  
Rojana Pornprasertsuk

Ceramic injection moulding (CIM) has advantages for a cost effective fabrication of large-scale, near-net-shape products. In this work, CIM is carried out to prepare porous anode-support for solid oxide fuel cells (SOFC) applications. The CIM process started with a preparation of feedstocks by mixing powder with binder. The feedstock is then injected into the mould of desired shapes. The mouldings were subsequently undergo the removal of the binder (debinding) and, finally, sintering. It is shown that porous nickel oxide-yttria stabilized zirconia (NiO-YSZ) anode-support for SOFC were successfully prepared by CIM technique. In addition, a water-soluble based binder system, consisted mainly of polyethylene glycol (PEG), has been used in this work. This is to avoid the use of organic solvents when wax-based binder was used. Therefore, it can promote more environmentally friendly process. The removal of binder was carried out using water debinding technique. The porous anode for SOFC was subjected to systematic characterisation. The effect of processing parameters, such as powder characteristics and powder/binder ratio has been investigated. Rate of binder removal was also studied. The porous anode specimens were characterised for their properties and microstructure. It was also found that the porosity of the specimens can be controlled by adjusting the sintering temperatures and holding times.


Author(s):  
Qiuyang Chen ◽  
Jian Zhang ◽  
Qiuwang Wang ◽  
Min Zeng

The concentration gradient of fuel and oxidant gas is great in the plane normal to the solid oxide fuel cells (SOFC) three-phase-boundary (TPB) layer, especially in the porous electrode. We present a novel interconnector design, termed bilayer interconnector, for SOFC. It can distribute the fuel and air gas in the plane normal to the SOFC TPB layer. In this paper, we develop a 3D model to study the current density of the SOFC with conventional and novel bi-layer interconnectors. The numerical results show that the novel SOFC design Rib1 can slightly enhance the mass transfer in the porous anode and current density. The novel SOFC design Rib2 can improve the current density significantly under low electrical conductivity of interconnector.


2018 ◽  
Vol 44 (12) ◽  
pp. 14824-14833 ◽  
Author(s):  
Muhammad Taqi Mehran ◽  
Muhammad Zubair Khan ◽  
Tak-Hyoung Lim ◽  
Seung-Bok Lee ◽  
Rak-Hyun Song

2008 ◽  
Vol 41 (4) ◽  
pp. 246-253 ◽  
Author(s):  
Hidetoshi Mori ◽  
Noboru Nonaka ◽  
Mitsukuni Mizuno ◽  
Hiroya Abe ◽  
Makio Naito

2016 ◽  
Vol 302 ◽  
pp. 378-386 ◽  
Author(s):  
Vanja Subotić ◽  
Christoph Schluckner ◽  
Hartmuth Schroettner ◽  
Christoph Hochenauer

Author(s):  
Hyeon-Cheol Park ◽  
Fatih Dogan

Anode supported solid oxide fuel cells (SOFC) were fabricated by addition of various metal oxides such as Fe2O3, Co3O4 and TiO2 to thin anode functional layers between the electrolyte (yttria-stabilized zirconia, YSZ) and electrode materials (anode support: YSZ-NiO). Effect of the additives on the power density and impedance spectra of SOFC was studied. It was found that addition of Co3O4 to anode functional layer was most effective towards improvement of power densities and reduction of the total ohmic resistance as well as the area specific resistance of the cells, while addition of TiO2 to anode functional layer resulted in lower power densities. Possible mechanisms on the relationship between the additives in electrode functional layers and the cell performance were briefly discussed.


Sign in / Sign up

Export Citation Format

Share Document