Effect of Cathode Contacting on Anode Supported Cell Performances

2016 ◽  
Vol 163 (8) ◽  
pp. F872-F876 ◽  
Author(s):  
R. Spotorno ◽  
P. Piccardo ◽  
G. Schiller
Keyword(s):  
Anode Supported Cell

Performance and testing of joined Crofer22APU-glass-ceramic sealant-anode supported cell in SOFC relevant conditions

2011 ◽  
Vol 65 (6) ◽  
pp. 1048-1052 ◽  
Author(s):  
F. Smeacetto ◽  
M. Salvo ◽  
P. Leone ◽  
M. Santarelli ◽  
M. Ferraris
Keyword(s):  
Glass Ceramic ◽  
Anode Supported Cell

Direct-methane solid oxide fuel cell (SOFC) with Ni-SDC anode-supported cell

2017 ◽  
Vol 42 (36) ◽  
pp. 23118-23129 ◽  
Author(s):  
A. Ideris ◽  
E. Croiset ◽  
M. Pritzker ◽  
A. Amin
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Anode Supported Cell

scholarly journals Performance of NiO/YSZ anode-supported solid oxide fuel cell fueled with landfill gas stream

2020 ◽  
Vol 166 ◽  
pp. 04007
Author(s):  
Cevat Yaman ◽  
Yusuf Kucukaga
Keyword(s):  
Solid Oxide Fuel Cells ◽  
Landfill Gas ◽  
Electrical Energy ◽  
Pilot Scale ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Stabilized Zirconia ◽  
Maximal Power ◽  
Anode Supported Cell ◽  
Study Performance

Generating electrical energy from landfill gas (LFG) is a challenge due to its low conversion efficiency. In this study, performance of a NiO/yttria-stabilized zirconia (NiO-YSZ) anode-supported cell operating with LFG feed stream was evaluated. This study investigated the potential of solid oxide fuel cells (SOFC) to produce electricity from LFG generated in pilot scale anaerobic municipal solid waste bioreactors. During the initial experiments, power generation was achieved in the SOFC with direct feeding of the LFG. Different feed flow rates (10 25 mL/min) and varying temperature conditions (700 800 °C) were also investigated to define the optimal conditions. Experiments were carried out at different feed rates and the successful results obtained from 10 mL/min and 20 mL/min feed speeds. It was also observed that the maximal power values were between 0.10 0.11 Watt/cm2 for all experiments. This study showed that SOFCs can provide significantly higher energy efficiencies than steam engines for LFG conversion into electrical energy.

scholarly journals Nanostructured BaCo0.4Fe0.4Zr0.1Y0.1O3-δ Cathodes with Different Microstructural Architectures

Nanomaterials ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 1055
Author(s):  
Lucía dos Santos-Gómez ◽  
Javier Zamudio-García ◽  
José M. Porras-Vázquez ◽  
Enrique R. Losilla ◽  
David Marrero-López
Keyword(s):  
Solid Oxide Fuel Cells ◽  
Screen Printing ◽  
Cost Effective ◽  
Single Step ◽  
Screen Printing Technique ◽  
Spray Pyrolysis Deposition ◽  
Printing Technique ◽  
Microstructural Design ◽  
Anode Supported Cell

Lowering the operating temperature of solid oxide fuel cells (SOFCs) is crucial to make this technology commercially viable. In this context, the electrode efficiency at low temperatures could be greatly enhanced by microstructural design at the nanoscale. This work describes alternative microstructural approaches to improve the electrochemical efficiency of the BaCo0.4Fe0.4Zr0.1Y0.1O3-δ (BCFZY) cathode. Different electrodes architectures are prepared in a single step by a cost-effective and scalable spray-pyrolysis deposition method. The microstructure and electrochemical efficiency are compared with those fabricated from ceramic powders and screen-printing technique. A complete structural, morphological and electrochemical characterization of the electrodes is carried out. Reduced values of area specific resistance are achieved for the nanostructured cathodes, i.e., 0.067 Ω·cm2 at 600 °C, compared to 0.520 Ω·cm2 for the same cathode obtained by screen-printing. An anode supported cell with nanostructured BCFZY cathode generates a peak power density of 1 W·cm−2 at 600 °C.

Curvature and Strength of Ni-YSZ Solid Oxide Half-Cells After Redox Treatments

2010 ◽  
Vol 7 (5) ◽  
Author(s):  
Antonin Faes ◽  
Henrik Lund Frandsen ◽  
Mikko Pihlatie ◽  
Andreas Kaiser ◽  
Darlene R. Goldstein
Keyword(s):  
Thermal Stresses ◽  
Solid Oxide ◽  
Stabilized Zirconia ◽  
Half Cell ◽  
Redox Cycles ◽  
Before And After ◽  
Lower Porosity ◽  
Ring Method ◽  
Anode Supported Cell ◽  
Cell Strength

One of the main drawbacks of anode-supported solid oxide fuel cell technology is the limited capability to withstand reduction and oxidation (“RedOx”) of the Ni phase. This study compares the effect of RedOx cycles on curvature and strength of half-cells, composed of a nickel-yttria-stabilized-zirconia (Ni-YSZ) support, a Ni-YSZ anode, and an 8YSZ electrolyte. Five different treatments are studied: (i) reduction at 600°C, (ii) reduction at 1000°C, (iii) 1RedOx cycle at 750°C, (iv) 5RedOx cycles at 750°C, and (v) 5RedOx cycles at 600°C. The strength is measured by the ball-on-ring method, where it is calculated analytically from the force. In this calculation the thermal stresses are estimated from the curvature of the half-cell. For each treatment, more than 30 samples are tested. About 20 ball-on-ring samples are laser cut from one original 12×12 cm2 half-cell. Curvature and porosity are measured for each sample before and after RedOx treatments. The first observations show that increasing the reduction temperature enhance strength but does not influence the curvature, whereas 1RedOx cycle at 750°C increases the curvature without changing the strength. Consecutive RedOx cycles seem to decrease anode-supported cell strength but this is coupled to lower porosity of the tested samples.

La2Mo2O9-Based Electrolyte: Ion Conductivity and Anode-Supported Cell under Single Chamber Conditions

2010 ◽  
Vol 94 (3) ◽  
pp. 806-811 ◽  
Author(s):  
Jen-Chieh Lo ◽  
Dah-Shyang Tsai ◽  
Yu-Chen Chen ◽  
Minh-Vien Le ◽  
Wen-Hung Chung ◽  
...  
Keyword(s):  
Ion Conductivity ◽  
Single Chamber ◽  
Anode Supported Cell

scholarly journals Effect of Cathode Contacting on Anode Supported Cell Performances and Degradation

2015 ◽  
Vol 68 (1) ◽  
pp. 2429-2439 ◽  
Author(s):  
R. Spotorno ◽  
P. Piccardo ◽  
G. Schiller
Keyword(s):  
Anode Supported Cell

Utilisation of Biogas From an Urban Sewage Treatment Plant in a Solid Oxide Fuel Cell

2010 ◽  
Author(s):  
Andrea Lanzini ◽  
Pierluigi Leone ◽  
Massimo Santarelli
Keyword(s):  
Sewage Treatment ◽  
Fixed Bed ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Cell Voltage ◽  
Operating Conditions ◽  
Fixed Bed Reactor ◽  
Urban Sewage ◽  
Anode Degradation ◽  
Anode Supported Cell

A biogas coming from anaerobic digestion of urban sewage has been used to feed a SOFC planar anode-supported cell. The sewage is produced from the urban area of Torino (IT), and eventually collected and treated by SMAT (the municipal company managing the potable and waste water of the city). The biogas is produced by the thermophilic fermentation of the sludge which remains after the several treatments the sewage goes through in the above-mentioned plant. The biogas is of a high quality: it has on average a a methane content around 65% (the balance being essentially CO2), and the only significant impurity measured is H2S in a range of 70–80 ppm. The as-produced biogas has been used for feeding a planar Ni-YSZ anode-supported SOFC with a LSCF cathode. The biogas desulphurization was accomplished flowing the gas in a fixed-bed reactor, filled with activated. The fuel processing with POX has been assessed to avoid carbon deposition into the Ni-YSZ anode and convert the CH4 into H2 and CO. Short tests to check for eventual anode degradation were performed under typical operating conditions. The cell voltage was always stable under load with the tested mixtures. A cell electrical efficiency around 45% has been measured at 800°C and 80% FU. System simulations have performed as well to assess the whole system configuration under a biogas feeding. Optimization routines have been implemented to predict the best net AC efficiency achievable by a SOFC system running on biogas. Additional considerations on the management of poor LHV biogas mixture have been also assessed, showing how dry-reforming of CH4 with the CO2 already available in the biogas stream would be an excellent option needed to be investigated with further detail in the next future.

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