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Journal articles on the topic 'Anode SOFC'

Author: Grafiati
Published: 4 June 2021
Last updated: 3 February 2022

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1

Luo, Dan, Guan Qing Wang, Xue Feng Huang, and Jiang Rong Xu. "The Influence of the NiO Content on the Microstructure and Property of IT-SOFC Anodes." Advanced Materials Research 347-353 (October 2011): 3330–33. http://dx.doi.org/10.4028/www.scientific.net/amr.347-353.3330.

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Intermediate temperature SOFC anode/electrolyte plates are made by pechini methods. The structural property of GDC anodes in IT-SOFC was studied. The effect of the synthesizing technology, of the original powder used and that of the sintering temperature, as well as other factors, on crystallization and catalytic activation of anodes have been studied. Results indicate that shrinkage of sintered anode supports with 35％NiO contents lower than that of 50％NiO contents. The effect of porosity of sintered anodes with different NiO contents as a function of sintering temperature was investigated as well. The good sintering kinetics of the GDC anode ceramics were obtained based on the NiO contents control.
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2

Song, Changhee, Sanghoon Lee, Bonhyun Gu, Ikwhang Chang, Gu Young Cho, Jong Dae Baek, and Suk Won Cha. "A Study of Anode-Supported Solid Oxide Fuel Cell Modeling and Optimization Using Neural Network and Multi-Armed Bandit Algorithm." Energies 13, no. 7 (April 2, 2020): 1621. http://dx.doi.org/10.3390/en13071621.

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Anode-supported solid oxide fuel cells (SOFCs) model based on artificial neural network (ANN) and optimized design variables were modeled. The input parameters of the anode-supported SOFC model developed in this study are as follows: current density, temperature, electrolyte thickness, anode thickness, anode porosity, and cathode thickness. Voltage was estimated from the SOFC model with the input parameters. Numerical results show that the SOFC model constructed in this study can represent the actual SOFC characteristics very well. There are four design parameters to be optimized: electrolyte, anode, cathode thickness, and anode porosity. To derive the optimal combination of the design parameters, we have used a multi-armed bandit algorithm (MAB), and developed a methodology for deriving near-optimal parameter set without searching for all possible parameter sets.
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3

Rahman, I. Z., M. A. Raza, and M. A. Rahman. "Perovskite Based Anode Materials for Solid Oxide Fuel Cell Application: A Review." Advanced Materials Research 445 (January 2012): 497–502. http://dx.doi.org/10.4028/www.scientific.net/amr.445.497.

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Perovskites have gained attraction as electrode and interconnect materials for Solid Oxide Fuel Cells (SOFCs) due to their catalytic, ionic and electrical conductivities, chemical and thermal stabilities at higher temperatures. The operation and efficiency of SOFC depends mainly on the electrodes. Each electrode, anode and cathode, has demanding materials selection criteria. State of the art nickel-yittria stabilized zirconia cermet anodes are unable to work efficiently with hydrocarbon fuels and at intermediate operating temperature range (600-800°C). Hence, there is an increasing demand for the development of alternate anode materials to improve the fuel flexibility and efficiency of SOFCs. Perovskite based materials have oxygen ion vacancies depending on composition, temperature, and surrounding crystalline environment that impart mixed ionic and electronic conductivities to them. Since perovskite can accommodate all the elements in the periodic table they can offer excellent catalytic properties. The report is about the present status of perovskites based anode materials for SOFC application.
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4

You, Hong Xin, Ya Jun Guan, Bin Qu, Shuang Zhang, Guo Qing Guan, and Abuliti Abudula. "Research on SOFC of Composite Anode Material SrMoO3-YSZ Impregnated with Gd0.2Ce0.8O1.9 by Hard Template Method." Advanced Materials Research 1091 (February 2015): 39–44. http://dx.doi.org/10.4028/www.scientific.net/amr.1091.39.

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Solid oxide fuel cell (SOFC) anodes made by SrMoO3 substituting for Ni of SOFC. Porous SrMoO3 and YSZ (8mol%Y2O3-ZrO2) were synthesized with activated carbon hard template by liquid phase method, and nanoparticles Gd0.2Ce0.8O1.9 (GDC) impregnated porous SrMoO3-YSZ with liquid phase immerse method, thus SOFC composite anode material was synthesized. SrMoO3-YSZ that impregnated with GDC by hard template method was treated as the anode, YSZ as the electrolyte while LSM (La0.8Sr0.2MnO3-d) as the cathode, so that the solid oxide fuel cell could be assembled. At 800°C, the highest power densities of cells with the anode of SrMoO3-YSZ impregnated by GDC and the cell anode of SrMoO3-YSZ were 190.44mW•cm-2 and 98.06 mW•cm-2 respectively as methane was the fuels.
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5

Primdahl, S. "Thin Anode Supported SOFC." ECS Proceedings Volumes 1999-19, no. 1 (January 1999): 793–802. http://dx.doi.org/10.1149/199919.0793pv.

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6

Montinaro, Dario, Massimo Bertoldi, and Vincenzo M. Sglavo. "Synthesis and Processing of Perovskite Oxides for Solid Oxide Fuel Cells Anode Fabrication." Advances in Science and Technology 45 (October 2006): 1864–68. http://dx.doi.org/10.4028/www.scientific.net/ast.45.1864.

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In the present work materials alternative to Ni/YSZ cermets anodes for Solid Oxide Fuel Cells (SOFCs) have been studied in order to overcome the problems related to catalytic deposition of carbon and the limited tolerance to sulphur. Anodes consisting of (La0.75Sr0.25)(Cr0.5Mn0.5)O3-δ (LSCM25) have been investigated with regard to synthesis and processing related problems. Single phase LSCM25 perovskites were synthesized by urea/nitrates gel combustion method and the as prepared powders were used to produce green tapes by tape casting processing. Thick LSCM25 substrates, suitable as anodes in anode supported SOFC fabrication, were successfully obtained by sintering of green LSCM25 laminates.
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7

Sinha, Amit, David N. Miller, and John T. S. Irvine. "Development of novel anode material for intermediate temperature SOFC (IT-SOFC)." Journal of Materials Chemistry A 4, no. 28 (2016): 11117–23. http://dx.doi.org/10.1039/c6ta03404g.

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A novel rare-earth free anode material based on titanium oxycarbide (TiOxC1−x) is developed for application in intermediate temperature solid oxide fuel cells (IT-SOFC). Utilizing the new anode material, a peak power density of 130 mW cm−2 is achieved in gadolina-doped ceria electrolyte supported SOFC at an operating temperature of 700 °C.
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8

Bozorgmehri, Shahriar, Mohsen Hamedi, and Alireza Babaei. "Modeling of Nanostructured Palladium Anode in Solid Oxide Fuel Cells." Advanced Materials Research 829 (November 2013): 195–98. http://dx.doi.org/10.4028/www.scientific.net/amr.829.195.

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In this paper, a mode of nanostructured Pd anode of SOFCs is presented to calculate the effects of nanoparticles on the SOFCs' electrodes performance. Nanostructured electrodes of the SOFCs prepared by wet impregnation have attracted increasing attention as the most effective way to make highly active and advanced structures in the electrodes. The effects of infiltrated Pd-nanoparticles on the performance of Nickel/ Gadolinium doped Ceria (Ni/GDC) anode of SOFC are investigated. It is observed that a small amount of Pd catalyst has a significant decreasing effect on overpotential of anodes. One-dimensional analysis is carried out using a simplified geometry to calculate the effective polarization resistance by assuming the ionic conductor phase (GDC) as columns and the Pd phase mounted on these columns. The results of modeling are presented and compared with the experimental data as a function of temperature.
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9

Fukunaga, Hiroshi, Akinori Fueoka, Toru Takatsuka, and Koichi Yamada. "La0.85Sr0.15Cr0.9Ni0.05Pd0.05O3 Perovskite Anode for SOFC." JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 42, Supplement. (2009): s255—s259. http://dx.doi.org/10.1252/jcej.08we167.

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10

Basu, Rajendra, J. Mukhopadhyay, M. Banerjee, A. Das Sharma, and H. S. Maiti. "Development of Functional SOFC Anode." ECS Transactions 7, no. 1 (December 19, 2019): 1563–72. http://dx.doi.org/10.1149/1.2729263.

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11

Gut, Beat. "Anode Substrates for Planar SOFC." ECS Proceedings Volumes 1999-19, no. 1 (January 1999): 840–44. http://dx.doi.org/10.1149/199919.0840pv.

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12

Cao, Tianyu, Ohhun Kwon, Raymond J. Gorte, and John M. Vohs. "Metal Exsolution to Enhance the Catalytic Activity of Electrodes in Solid Oxide Fuel Cells." Nanomaterials 10, no. 12 (December 7, 2020): 2445. http://dx.doi.org/10.3390/nano10122445.

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Exsolution is a novel technology for attaching metal catalyst particles onto ceramic anodes in the solid oxide fuel cells (SOFCs). The exsolved metal particles in the anode exhibit unique properties for reaction and have demonstrated remarkable stabilities under conditions that normally lead to coking. Despite extensive investigations, the underlying principles behind exsolution are still under investigation. In this review, the present status of exsolution materials for SOFC applications is reported, including a description of the fundamental concepts behind metal incorporation in oxide lattices, a listing of proposed mechanisms and thermodynamics of the exsolution process and a discussion on the catalytic properties of the resulting materials. Prospects and opportunities to use materials produced by exsolution for SOFC are discussed.
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13

Heenan, Thomas M. M., Seyed Ali Nabavi, Maria Erans, James B. Robinson, Matthew D. R. Kok, Maximilian Maier, Daniel J. L. Brett, Paul R. Shearing, and Vasilije Manovic. "The Role of Bi-Polar Plate Design and the Start-Up Protocol in the Spatiotemporal Dynamics during Solid Oxide Fuel Cell Anode Reduction." Energies 13, no. 14 (July 10, 2020): 3552. http://dx.doi.org/10.3390/en13143552.

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Start-up conditions largely dictate the performance longevity for solid oxide fuel cells (SOFCs). The SOFC anode is typically deposited as NiO-ceramic that is reduced to Ni-ceramic during start-up. Effective reduction is imperative to ensuring that the anode is electrochemically active and able to produce electronic and ionic current; the bi-polar plates (BPP) next to the anode allow the transport of current and gases, via land and channels, respectively. This study investigates a commercial SOFC stack that failed following a typical start-up procedure. The BPP design was found to substantially affect the spatiotemporal dynamics of the anode reduction; Raman spectroscopy detected electrochemically inactive NiO on the anode surface below the BPP land-contacts; X-ray computed tomography (CT) and scanning electron microscopy (SEM) identified associated contrasts in the electrode porosity, confirming the extension of heterogeneous features beyond the anode surface, towards the electrolyte-anode interface. Failure studies such as this are important for improving statistical confidence in commercial SOFCs and ultimately their competitiveness within the mass-market. Moreover, the spatiotemporal information presented here may aid in the development of novel BPP design and improved reduction protocol methods that minimize cell and stack strain, and thus maximize cell longevity.
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14

Oberste Berghaus, Jorg, Jean Gabriel Legoux, Christian Moreau, Rob Hui, and Dave Ghosh. "Suspension Plasma Spraying of Intermediate Temperature SOFC Components Using an Axial Injection DC Torch." Materials Science Forum 539-543 (March 2007): 1332–37. http://dx.doi.org/10.4028/www.scientific.net/msf.539-543.1332.

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Intermediate temperature SOFC components, such as dense, nanostructured SDC electrolytes (samarium doped ceria) and porous anode sublayers were fabricated by suspension plasma spraying using an axial feed dc plasma torch. The liquid carrier employed in this approach allowed for controlled injection of much finer particles than in conventional thermal spraying, leading to thin coatings with a refined microstructure. Dense, thin (<10(m) and non-fractured electrolytes were created. Various processing routes for SOFC half-cells, using tape-cased, plasmasprayed and suspension-sprayed anodes, were explored. Loss of integrity and non-continuous coverage of the anode constituted the principal difficulties in the subsequent electrolyte deposition. The role of suspension feedstock particle size is discussed. Amongst various schemes investigated, a processing route that employs sequential suspension plasma spraying steps for both the electrolyte and the anode, using relatively large primary particles in the feedstock, constituted the most promising approach.
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15

Su, Hui, Ye Fan Wu, Ling Hong Luo, Jia Song Zhang, and Guo Yang Sheng. "Application of Rape Pollen in Anode Substrates of Solid Oxide Fuel Cell." Key Engineering Materials 512-515 (June 2012): 1579–83. http://dx.doi.org/10.4028/www.scientific.net/kem.512-515.1579.

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The physical properties and microstructures of supporting anodes are crucial for the performances of the entire SOFCs. In this investigation, the rape pollen was developed as a novel pore-former to improve the properties of the conventional NiO–YSZ(yttria-stabilized zirconia) anode substrate of solid oxide fuel cell. The advantage of using this pore-former over the conventional ones (e.g. polymethyl methacrylate (PMMA), carbon and flour) is that this pore-former had high porosity、global pore shape and uniform pore size distribution in the anode substrates, which are beneficial for rapid transport of the fuel and byproduct. The microstructure was observed by SEM, and the porosity of anode was measured by Archimedes method. The results showed that the optimum weight percent concentration was 15%, correspondingly, porosity was 40.3%, which was suitable for supporting anodes for SOFC application. And the open-circuit voltage (OCV) as high as 1.058V was obtained ,and the maximum power densities of 0.794W/cm2 was achieved at 750°C, respectively, using hydrogen as fuel and ambient air as oxidant.
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16

Zhou, Jian Er, Xiao Zhen Zhang, Yong Qing Wang, Bin Lin, Xue Bing Hu, Guang Yao Meng, and Xing Qin Liu. "Micro-Tubular Solid Oxide Fuel Cell with Asymmetric Structure Anode and La0.6Sr0.4Co0.8Cu0.2O3−δ Perovskite Cathode." Advanced Materials Research 197-198 (February 2011): 672–76. http://dx.doi.org/10.4028/www.scientific.net/amr.197-198.672.

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Micro-tubular solid oxide fuel cell (SOFC) has been fabricated with NiO-YSZ hollow fiber as anode support and La0.6Sr0.4Co0.8Cu0.2O3−δ-Sm0.2Ce0.8O1.9 (LSCCu-SDC) composite cathode. The NiO-YSZ hollow fiber anode was prepared by the immersion-induced phase inversion technique and shows a special asymmetrical structure with porous sponge-like structure in the middle and finger-like structure on the inner and outer side of the hollow fiber. A thin and dense electrolyte membrane (about 12μm) was deposited on the anode by a vacuum-assisted dip-coating process. The performance of the as-prepared hollow fiber SOFC (HF-SOFC) was tested at 600-800°C with humidified H2 as fuel and ambient air as the oxidant. The peak power densities of 531.1, 362.5 and 214.6mWcm-2 can be obtained at 800, 700 and 600°C, respectively. The good performance at intermediate temperature (IT) indicates promising applications as power sources for portable devices for the prepared YSZ-based micro-tubular SOFCs with LSCCu-SDC composite cathode.
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17

Widiyanto, Alif, Sulistyo, and MSK Tony Suryo Utomo. "Analysis of the Effect of Anode Porosity on Temperature Distribution on Planar Radial Type SOFC." E3S Web of Conferences 73 (2018): 01010. http://dx.doi.org/10.1051/e3sconf/20187301010.

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Solid Oxide Fuel Cell (SOFC) is an electrochemical equipment that converts gas into electricity directly. The waste products resulting from SOFC are water vapor and heat when using hydrogen gas. The electrode of the SOFC is the anode, electrolyte and cathode. The performance of SOFC is influenced porosity of the electrode. This study explained the relationship between porosity of the anode and temperature distribution using computational fluid dynamics modeling approach (CFD). In this study, CFD modeling was done by using Fluent software. The geometry model of computational modeling is a planar radial-type SOFC. The assumptions of some boundary conditions used from the study of literature and the object of study. The standard deviation and the different of temperature of the anode-electrolyte surface used to analyse the result. Non-homogenous temperature distribution rise if the anode porosity and gas flow rate is increasing. This indicates the gradient of temperature is bigger in the higher porosity, which may cause thermal stress and degrades the materials of electrode.
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18

Yu, Jie, Wen Hui Ma, Hang Sheng Lin, Hong Yan Sun, Xiu Hua Chen, and Bin Yang. "Fabrication of LSGM Thin Film Electrolyte on LSCM Anode by RF Magnetron Sputtering for IT-SOFC." Materials Science Forum 675-677 (February 2011): 81–84. http://dx.doi.org/10.4028/www.scientific.net/msf.675-677.81.

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La0.9Sr0.1Ga0.8Mg0.2O3-δ (LSGM) thin film electrolytes were fabricated on La0.7Sr0.3Cr0.5Mn0.5O3-δ (LSCM) porous anodes by radio-frequency (RF) magnetron sputtering. The formation and microstructure of LSGM thin films were characterized by X-ray diffraction(XRD) and scanning electron microscopy (SEM). The effects of different sputtering conditions, such as Ar gas pressure, substrate temperature and sputtering power, on the performance of LSGM electrolyte film were estimated. Dense LSGM thin film electrolytes with thickness of about 2μm, which are compatible with LSCM-based anodes and without crack, have been successfully fabricated on LSCM-based anode supports by RF magnetron sputtering when sputtering power density is 5.2W·cm-2, Ar gas pressure is 5Pa and substrate temperature is 300°C. It is found that high sputtering power density and high Ar gas pressure, as well as high substrate temperature, are beneficial to deposition of dense electrolyte thin film, close bonding of electrolyte thin film with anode substrate, and formation of large three phase boundaries between anode and electrolyte.
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19

Takahashi, Kazuya, Hiroaki Fujita, Yuya Ishikawa, and Takao Nakagaki. "Microfabrication of Anode Functional Layer in SOFC by 3D Printer." MATEC Web of Conferences 333 (2021): 17001. http://dx.doi.org/10.1051/matecconf/202133317001.

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This work aims to increase the interface between anode and electrolyte in solid oxide fuel cells by controlling the 3D microstructure with a commercial ink-jet 3D printer. Anode and electrolyte inks suitable for use in a 3D printer were prepared by altering the viscosity and the droplet size. A porous anode structure that ensures a flow path for gases was achieved by addition of acrylic particles into the anode ink. A dense electrolyte structure that prevents leakage was created. The anode and electrolyte layers were produced as long, flat strips which were aligned in parallel to form sheets; these sheets were stacked orthogonally to complete the 3D microstructure called the ‘anode functional layer’. The anode functional layer was roughly 100 micrometers on a side with a thickness of 4 micrometers. The anode functional layer was inserted between the anode and electrolyte. The assembled solid oxide fuel cell showed high performance when tested at 600 °C with dry methane as the fuel source.
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20

Takahashi, Kazuya, Hiroaki Fujita, Yuya Ishikawa, and Takao Nakagaki. "Microfabrication of Anode Functional Layer in SOFC by 3D Printer." MATEC Web of Conferences 333 (2021): 17001. http://dx.doi.org/10.1051/matecconf/202133317001.

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This work aims to increase the interface between anode and electrolyte in solid oxide fuel cells by controlling the 3D microstructure with a commercial ink-jet 3D printer. Anode and electrolyte inks suitable for use in a 3D printer were prepared by altering the viscosity and the droplet size. A porous anode structure that ensures a flow path for gases was achieved by addition of acrylic particles into the anode ink. A dense electrolyte structure that prevents leakage was created. The anode and electrolyte layers were produced as long, flat strips which were aligned in parallel to form sheets; these sheets were stacked orthogonally to complete the 3D microstructure called the ‘anode functional layer’. The anode functional layer was roughly 100 micrometers on a side with a thickness of 4 micrometers. The anode functional layer was inserted between the anode and electrolyte. The assembled solid oxide fuel cell showed high performance when tested at 600 °C with dry methane as the fuel source.
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21

Restivo, Thomaz Augusto Guisard, D. W. Leite, and Sonia Regina Homem de Mello-Castanho. "Advanced Multi-Metallic SOFC Anode Development by Mechanical Alloying Route." Materials Science Forum 636-637 (January 2010): 865–73. http://dx.doi.org/10.4028/www.scientific.net/msf.636-637.865.

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Anodes composed of Ni-YSZ (yttria-stabilised zirconia) cermets are the key material to allow direct biofuel feeding to Solid Oxide Fuel Cell (SOFC) devices due to its internal reforming capability. The main challenge among these materials is related to carbon deposition poisoning effect when C-bearing fuels are feed. The work deals with these issues by alloying Ni with some metals like Cu to conform a multi-metallic anode material. Mechanical alloying (MA) at shaker mills is chosen as the route to incorporate the metal and ceramic powders in the anode material, also leading to better sintering behaviour. A projected cermet material is conceived where a third metal can be added based on two criteria: low Cu solubility and similar formation enthalpy of hydrides regarding Ni. Refractory metals like Nb, W and Mo, seems to fulfil these characteristics, as well as Ag. The MA resulted powder morphology is highly homogeneous showing nanometric interpolated metal lamellae. The sintering behaviour is investigated by conventional dilatometry as well as by stepwise isothermal dilatometry (SID) quasi-isothermal method to determine the sintering kinetic parameters. Based on these tools, it is found the Cu additive promotes sintering to obtain a denser anode and therefore allowing lower process temperatures. The consolidation is achieved through the sintering by activated surface (SAS) method allied to liquid phase sintering process, where the third metal additive also has influenced. The final cermet can be obtained at one sole process step, dispensing pore-forming additives and reduction treatments. The sintered microstructure demonstrates the material is homogeneous and possesses suitable percolation networks and pore structure for SOFC anode applications.
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22

Suzuki, Toshio, Toshiaki Yamaguchi, Yoshinobu Fujishiro, and Masanobu Awano. "Improvement of SOFC Performance Using a Microtubular, Anode-Supported SOFC." Journal of The Electrochemical Society 153, no. 5 (2006): A925. http://dx.doi.org/10.1149/1.2185284.

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23

Dager, Paola Katherine, Liliana Veronica Mogni, Guillermo Zampieri, and Alberto Caneiro. "Study of Sr2MgMo0.9Ni0.1O6-δas SOFC Anode." ECS Transactions 78, no. 1 (May 30, 2017): 1367–74. http://dx.doi.org/10.1149/07801.1367ecst.

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24

Müller, A. C., A. Krügel, and E. Ivers-Tiffée. "Engineering of SOFC Anode/Electrolyte Interface." Materialwissenschaft und Werkstofftechnik 33, no. 6 (June 2002): 343–47. http://dx.doi.org/10.1002/1521-4052(200206)33:6<343::aid-mawe343>3.0.co;2-s.

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25

Nagato, K., S. Shinagawa, N. Shikazono, S. Iwasaki, and M. Nakao. "SOFC Anode Based on YSZ Pillars." ECS Transactions 68, no. 1 (July 17, 2015): 1309–14. http://dx.doi.org/10.1149/06801.1309ecst.

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26

Marques, R. M. C. "Ceramic Materials for SOFC Anode Cermets." ECS Proceedings Volumes 1993-4, no. 1 (January 1993): 513–22. http://dx.doi.org/10.1149/199304.0513pv.

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27

Kulikovsky, A. A. "A model for SOFC anode performance." Electrochimica Acta 54, no. 26 (November 2009): 6686–95. http://dx.doi.org/10.1016/j.electacta.2009.06.054.

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28

Chen, Kongfa, Xiangjun Chen, Zhe Lü, Na Ai, Xiqiang Huang, and Wenhui Su. "Performance of an anode-supported SOFC with anode functional layers." Electrochimica Acta 53, no. 27 (November 2008): 7825–30. http://dx.doi.org/10.1016/j.electacta.2008.05.063.

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29

Gunawan, Sulistyo, and Iwan Setyawan. "Progress in Glass-Ceramic Seal for Solid Oxide Fuel Cell Technology." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 82, no. 1 (April 11, 2021): 39–50. http://dx.doi.org/10.37934/arfmts.82.1.3950.

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Solid oxide fuel cells (SOFCs) have emerged as promising energy conversion devices nowadays. SOFC consists of several components such as cathode, anode, electrolyte, interconnects, and sealing materials. In planar SOFC stack construction, the sealant and interconnection functions play an important role. Glass and ceramics are quite popularly used as SOFC sealing materials to achieve several functions including preventing leakage of fuel and oxidants in the stack and electrically isolating cells in the stack. In this review, material preparation, material composition, ceramic properties especially thermal properties are compared from various systems that have been developed previously. The main challenges and complexities in the functional part of SOFC sealants include: (i) chemical incompatibility and instability in the oxidizing and reducing environment by adjusting the value of the thermal expansion coefficient (CTE) with the interconnecting material during SOFC operation, and (ii) insulation of oxidizing fuels and gases by matching CTE anode and cathode. Also, the sealant glass transition determines the maximum permissible working temperature of the SOFC. The choice of method and analysis will provide data on various ceramic attributes. The search for thermal attributes consisting of Glass transition (Tg), Deformation temp (Td), Crystallization temp (Tx), Melting pt (Tm) became a focus on SOFC sealant development.
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30

Wendler, Leonardo Pacheco, Kethlinn Ramos, Adriana Scoton Antonio Chinelatto, and Adilson Luiz Chinelatto. "Peroviskites Synthesis to SOFC Anodes." Materials Science Forum 805 (September 2014): 498–503. http://dx.doi.org/10.4028/www.scientific.net/msf.805.498.

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The traditional Ni-based anodes are capable of providing a good power output using H2and CO fuels, but sulfur contamination in any hydrocarbon fuel is a problem. Thus, perovskite structure materials containing lanthanum have been widely studied as electrodes for solid oxide fuel cells (SOFCs), due to its electrical properties. In this work was investigated the obtain of the perovskite structure LaCr0.5Ni0.5O3, by Pechini method, and its suitability as SOFC anode. The choice of this composition was based on the stability provided by chromium and the catalytic properties of nickel. After preparing the resins, the samples were calcined at 300oC, 600oC, 700oC and 850oC. The resulting powders were characterized by X-ray, X-ray fluorescence spectroscopy, He pycnometry, specific surface area by BET isotherm and scanning electronic microscopy. The obtaining of the powders of LaCr0.5Ni0.5O3through the Pechini method proved to be effective for temperatures above 850oC.
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31

Xu, Ying Qiang, Lei Lei Wang, and Qiong Wei Zhang. "Effect of Thermal Load on Mechanical Properties of Ni/YSZ Anode Support Micro Tubular Solid Oxide Fuel Cell." Advanced Materials Research 295-297 (July 2011): 2037–40. http://dx.doi.org/10.4028/www.scientific.net/amr.295-297.2037.

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The most commonly used Micro tubular solid oxide fuel cell (MT-SOFC) anode material is a two phase nickel and yttria stabilized zirconia (Ni/YSZ) cermet. And the mechanical stability of anode support layer, in anode-supported electrolyte designs, is very important for large scale applications. During the assembly of stack and normal operation, MT-SOFC is easy to crack under the fuel pressure and thermal loading due to various mechanical properties. In this study, MT-SOFC model was founded on the background of MT-SOFC stack of electric vehicle and was analyzed by finite element method, based on theories of elasto-plasticity, thermo-mechanical coupling. The effect of thermal load was investigated. It concluded that the failure of the micro-tubular cell occurs mainly because of the residual stress due to the mismatch between the coefficients of thermal expansion of the materials of the electrode assembly. The results are important for studying the life and final spallation of MT-SOFC of electric vehicle.
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32

Li, Fei, Jing De Zhang, Jun Peng Luan, and Ya Lei Liu. "Preparation of Anode-Supported SOFC Electrolyte Membrane and Porous Anode Material." Materials Science Forum 848 (March 2016): 383–88. http://dx.doi.org/10.4028/www.scientific.net/msf.848.383.

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The graphite was used as pore-forming agent to prepare porous NiO-Yttria-stabilized zirconia (YSZ) anode material. The influence of the content of pore-forming agent of the anode material, and the change of the anode material before and after the reduction of NiO were investigated. It was found that the porosity and shrinkage rate of the anode increased with the addition of the pore-forming agent, and the thermal shock resistance also improved. We chose Y(NO3)3·6H2O and ZrOCl2·8H2O as raw materials, ethylene glycol monomethyl ether as solvents to make collosol. And electrolyte membrane on the Si piece was prepared by spin-coating. The electrolyte membrane would be thinner if it spined faster and longer. Then we chose the anode material as support to prepare electrolyte membrane. The thickness of the electrolyte membrane increased with the increase of the number of layers. Two layers were the most appropriate.
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Yoon, Sung Pil, Hyun Jae Kim, Byung-Tak Park, Suk Woo Nam, Jonghee Han, Tae-Hoon Lim, and Seong-Ahn Hong. "Mixed-Fuels Fuel Cell Running on Methane-Air Mixture." Journal of Fuel Cell Science and Technology 3, no. 1 (August 23, 2005): 83–86. http://dx.doi.org/10.1115/1.2134741.

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In order to develop solid oxide fuel cells (SOFCs) running on hydrocarbon fuels, we have focused on a new method of improving electrode performance and reducing carbon deposition by coating thin films of samaria-doped ceria (SDC) within the pores of electrode by a sol-gel coating technique. The SDC coating on the pores of anode made it possible to have a good stability for long-term operation due to low carbon deposition and nickel sintering. In this study, we demonstrated a new method of improving electrode performance and reducing carbon deposition by coating thin films of samaria-doped ceria and applied the modification technique to two different types of fuel cell structures, anode-supported SOFC and comb-shaped SOFC. From our results, the maximum power density of an anode-supported cell (electrolyte; 8 mol% YSZ and thickness of 30μm, and cathode; La0.85Sr0.15MnO3) with the modified anode was ∼300mW∕cm2 at 700°C in the mixture of methane (25%) and air (75%) as the fuel, and air as the oxidant. The cell was operated for 500hr without significant degradation of cell performance. For the comb-shaped SOFCs operated in the mixed-fuels fuel cell conditions, the cell performance was 40mW∕cm2 at 700°C in the CH4∕O2 ratio of 1.
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34

Radhika, D., and A. S. Nesaraj. "Materials and Components for Low Temperature Solid Oxide Fuel Cells – an Overview." International Journal of Renewable Energy Development 2, no. 2 (June 17, 2013): 87–95. http://dx.doi.org/10.14710/ijred.2.2.87-95.

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This article summarizes the recent advancements made in the area of materials and components for low temperature solid oxide fuel cells (LT-SOFCs). LT-SOFC is a new trend in SOFCtechnology since high temperature SOFC puts very high demands on the materials and too expensive to match marketability. The current status of the electrolyte and electrode materials used in SOFCs, their specific features and the need for utilizing them for LT-SOFC are presented precisely in this review article. The section on electrolytes gives an overview of zirconia, lanthanum gallate and ceria based materials. Also, this review article explains the application of different anode, cathode and interconnect materials used for SOFC systems. SOFC can result in better performance with the application of liquid fuels such methanol and ethanol. As a whole, this review article discusses the novel materials suitable for operation of SOFC systems especially for low temperature operation.
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35

YANO, Shinichi, Shiko NAKAMURA, Manabu IHARA, and Katsunori HANAMURA. "0519 SOFC with Anode using Proton conducting materials." Proceedings of the JSME annual meeting 2007.3 (2007): 69–70. http://dx.doi.org/10.1299/jsmemecjo.2007.3.0_69.

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36

Xu, Ying Qiang, Lei Lei Wang, and Qiong Wei Zhang. "Residual Stress and Thermal Stress in Ni/YSZ Anode Support Micro-Tubular Solid Oxide Fuel Cell." Advanced Materials Research 347-353 (October 2011): 3228–31. http://dx.doi.org/10.4028/www.scientific.net/amr.347-353.3228.

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The most commonly used Micro tubular solid oxide fuel cell (MT-SOFC) anode material is a two phase nickel and yttria stabilized zirconia (Ni/YSZ) cermet. And the mechanical stability of anode support layer, in anode-supported electrolyte designs, is very important for large scale applications. During the assembly of stack and normal operation, MT-SOFC is easy to crack under the residual stress induced by manufacture and thermal stress due to multi-physics coupling. In this work, MT-SOFC model was founded on the background of MT-SOFC stack of electric vehicle and was analyzed by finite element method, based on theories of multi-physical field coupling. In order to find out which is the main reason for cracking, the residual stress due to manufacture and work were investigated separately. Thermal stress based on residual stresses of operating are studied for further research of life of MT-SOFC. It concluded that the failure of the MT-SOFC occurs mainly because of the residual stress due to the mismatch between the coefficients of thermal expansion of the materials of the electrode assembly, thermal stress will increase the mismatch in some partial areas. The results are important for studying the life and final spallation of MT-SOFC of electric vehicle.
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37

Geagea, M., I. Genov, Z. Stoynov, D. Vladikova, A. Chesnaud, and A. Thorel. "Permeability of Gases in the Anode of an Anode Supported SOFC." ECS Transactions 68, no. 1 (July 17, 2015): 1185–92. http://dx.doi.org/10.1149/06801.1185ecst.

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38

Mukhopadhyay, Madhumita, Jayanta Mukhopadhyay, Abhijit Das Sharma, and Rajendra N. Basu. "Use of Electroless Anode Active Layer in Anode-supported Planar SOFC." ECS Transactions 25, no. 2 (December 17, 2019): 2267–74. http://dx.doi.org/10.1149/1.3205777.

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39

Chen, Xiu Hua, Wen Hui Ma, and Jie Yu. "Research on LSCMCo-CDC Composites as Improved Anode Material for IT-SOFC." Advanced Materials Research 79-82 (August 2009): 123–26. http://dx.doi.org/10.4028/www.scientific.net/amr.79-82.123.

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La1-xSrxCr1-yMnyO3-δ(LSCM) has unique advantages over the traditional anodes for it’s stability and high catalytic activity being an anode of solid oxide fuel cell(SOFC). Doped cerium material and Co element are used to improve the conductivity both in oxidative and reductive conditions. La0.7Sr0.3Cr0.5Mn0.5-xCoxO3-δ-Ce0.8Ca0.2O2(LSCMCo-CDC) composite anode materials are synthesized in one-step by glycine nitrate process(GNP). X-ray diffraction patterns(XRD), scanning electron microscopy(SEM) and energy dispersive X-ray spectroscopy(EDS) are used to characterize the powders. The conductivity of LSCMCo-CDC increases with increasing the quantity of Co when the temperature is above 750°C, and the maximum values are 10.5 Scm-1 and 0.7 Scm-1 of LSCMCo0.15-CDC at 800°C in air and H2 atmosphere, respectively. It’s conductivity in intermediate temperature have been promoted obviously comparing to that of LSCM-CDC and LSCMCo. Good chemical compatibility between LSCMCo-CDC and La0.9Sr0.1Ga0.8Mg0.2O3-δ(LSGM) is confirmed by XRD results.
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40

Jo, Sung Jong. "Ejector Optimization for SOFC Anode Off-Gas Recirculation System." Transactions of the Korean Society of Mechanical Engineers B 37, no. 2 (February 1, 2013): 139–48. http://dx.doi.org/10.3795/ksme-b.2013.37.2.139.

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41

Gil, V., J. Tartaj, and C. Moure. "Cermets Ni-GDC para su uso como ánodos en IT-SOFC basadas en electrolitos GDC." Boletín de la Sociedad Española de Cerámica y Vidrio 47, no. 4 (August 30, 2008): 196–200. http://dx.doi.org/10.3989/cyv.2008.v47.i4.174.

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42

Zieyana, Mohamed Annuar Nurul, Hiroshi Iwai, Grzegorz Brus, Masashi Kishimoto, Motohiro Saito, and Hideo Yoshida. "D212 2D Numerical Simulation of Anode Supported Planar SOFC Considering Microstructure of Electrodes." Proceedings of the Thermal Engineering Conference 2015 (2015): _D212–1_—_D212–2_. http://dx.doi.org/10.1299/jsmeted.2015._d212-1_.

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43

Zuo, Ning, Mi Lin Zhang, Jian Bing Huang, Li Zhang, and Zong Qiang Mao. "Fabrication and Characterization of Large Size Anode Substrate of Solid Oxide Full Cell." Advanced Materials Research 105-106 (April 2010): 695–97. http://dx.doi.org/10.4028/www.scientific.net/amr.105-106.695.

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The porous NiO/ samaria doped ceria (SDC) cermets, which have been used as the anode-supported for solid oxide fuel cell (SOFC), are fabricated via the tape casting process. In this article using different kinds of slurry system, prepared the large size (60×60mm) anode substrates for SOFC successfully. Effects of solvent, dispersant, plasticizer, binder and the sintering temperature program were investigated. Experimental results show that thicknesses and pore rates of anode substrates are 0.6 ~ 1.5mm and 20% ~ 40% respectively. And all of the complete and flat anode substrates have highly support intensity, for their homogeneous microstructure and pore distribution. Sintering the green pieces of anode substrates at the temperature of 1300°C for 2h, different green pieces have different shrinkages that could be from 20% to 30% measuring with thermal dilatometer. Using this kind of anode substrate, could find out a perfect one to matching the electrolyte film easily.
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44

Xie, Yong Song, Xin Ge Zhang, Mark Robertson, Radenka Maric, and Dave Ghosh. "Mechanical Strength and Interface Adhesion of a Solid Oxide Fuel Cell with Doped Ceria Electrolyte." Materials Science Forum 539-543 (March 2007): 1421–26. http://dx.doi.org/10.4028/www.scientific.net/msf.539-543.1421.

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An SOFC must have sufficient mechanical strength and interface adhesion to ensure it can be handled without breakage during fabrication and assembly, and has desired performance and reliability. Methods for measuring mechanical properties and interface adhesion of an SOFC have been developed and measurements made on a cermet-supported SOFC with a SDC electrolyte. The SOFC evaluated had a porous NiO-YSZ substrate, a porous NiO-SDC anode and a dense SDC electrolyte fabricated using tape-casting, screen-printing and co-firing techniques. The flexural strength and interface adhesion of the substrate, the anode and the electrolyte, along with their Young’s modulus, hardness and residual stress, were quantitatively measured. The results of the measurements indicate that the NiO-YSZ supported, SDC electrolyte SOFC has adequate mechanical strength and sufficient interface adhesion.
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45

Fukunaga, Hiroshi, Yoshimi Numazawa, Akinori Fueoka, Chikao Arai, Toru Takatsuka, and Koichi Yamada. "Self-Regeneration Pd-Perovskite Anode for SOFC." JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 40, no. 13 (2007): 1183–86. http://dx.doi.org/10.1252/jcej.07we161.

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46

Blennow, Peter, Trine Klemenso̸, Asa Persson, Karen Brodersen, Akhilesh K. Srivastava, Bhaskar R. Sudireddy, Severine Ramousse, and Mogens Mogensen. "Metal-Supported SOFC with Ceramic-Based Anode." ECS Transactions 35, no. 1 (December 16, 2019): 683–92. http://dx.doi.org/10.1149/1.3570047.

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47

Sarruf, Bernardo Jordão Moreira, Alberto Coralli, Jong-Eun Hong, Robert Steinberger-Wilckens, and Paulo Emílio Valadão de Miranda. "Nickel-Free SOFC Anode for Ethanol Electrocatalysis." ECS Transactions 91, no. 1 (July 10, 2019): 1673–82. http://dx.doi.org/10.1149/09101.1673ecst.

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48

Holtappels, P., C. Sorof, M. C. Verbraeken, S. Rambert, and U. Vogt. "Preparation of Porosity–Graded SOFC Anode Substrates." Fuel Cells 6, no. 2 (April 2006): 113–16. http://dx.doi.org/10.1002/fuce.200500116.

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49

Yasumoto, Kenji. "Anode Supported Interconnect for Electrolyte Membrane SOFC." ECS Proceedings Volumes 2003-07, no. 1 (January 2003): 832–40. http://dx.doi.org/10.1149/200307.0832pv.

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50

Lim, Tak Hyoung. "Development of Anode-Supported Tubular SOFC Stack." ECS Proceedings Volumes 2005-07, no. 1 (January 2005): 391–95. http://dx.doi.org/10.1149/200507.0391pv.

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