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Keywords: electrolytes
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Journal Articles
Article Type: Research-Article
J. Electrochem. En. Conv. Stor. April 2015, 12(2): 021003.
Paper No: FC-14-1097
Published Online: April 1, 2015
... one, indicating that correlation effects influence the motion of oxygen ions and vacancies. In addition, it is seen that the conductivity of crystals with noncubic symmetry is markedly anisotropic. Aging Doping Electrolytes Modeling Ni Ohmic Losses Solid oxide fuel cells Zirconia YSZ...
Journal Articles
Article Type: Research Papers
J. Electrochem. En. Conv. Stor. February 2012, 9(1): 011015.
Published Online: December 27, 2011
... electrolyte with a thin electrolyte layer of 6μm composed of the synthesized 1Ce10ScSZ powders was fabricated using the tape-casting and co-sintering techniques for a solid oxide fuel cell (SOFC) single cell. The open-circuit voltage of the single cell thus obtained was 1.11 V at 750 °C, indicating the dense...
Journal Articles
Article Type: Research Papers
J. Electrochem. En. Conv. Stor. December 2011, 8(6): 061011.
Published Online: September 27, 2011
... in the cubic fluorite structure. Dense and nanocrystalline Ce 0.8 Sm 0.2−x Dy x O 1.9 electrolytes were fabricated, even at low sintering temperature (1300 °C). The microstructure and electrical property of the Ce 0.8 Sm 0.2−x Dy x O 1.9 were discussed, depending on the Dy 3+ content. The highest conductivity...
Journal Articles
Article Type: Research Papers
J. Electrochem. En. Conv. Stor. December 2011, 8(6): 061003.
Published Online: September 23, 2011
... to measure the dynamic response of electrodes. Mass transfer behavior was analyzed using equations for diffusion in finite lengths of thin film electrolytes covering the catalyst surface area. Electrode structure parameters were measured using SEM images of the cross section of the membrane electrode...
Journal Articles
Article Type: Research Papers
J. Electrochem. En. Conv. Stor. December 2011, 8(6): 061002.
Published Online: September 23, 2011
...Hyeon-Cheol Park; Fatih Dogan Anode supported solid oxide fuel cells (SOFC) were fabricated by addition of various metal oxides such as Fe 2 O 3 , Co 3 O 4 and TiO 2 to thin anode functional layers between the electrolyte (yttria-stabilized zirconia, YSZ) and electrode materials (anode support: YSZ...
Journal Articles
Article Type: Research Papers
J. Electrochem. En. Conv. Stor. October 2011, 8(5): 051021.
Published Online: July 12, 2011
..., electrolyte thickness, porosities, and pore sizes. The analysis is carried out for a planar SOFC with YSZ electrolyte, LSM cathode, and Ni-YSZ anode, with thicknesses 20, 50, and 500 μm respectively, and with co-flow geometry. The predicted performance is validated with measured data found in the literature...
Journal Articles
Article Type: Research Papers
J. Electrochem. En. Conv. Stor. October 2011, 8(5): 051012.
Published Online: June 20, 2011
...Federico Rossi; Andrea Nicolini An experimental investigation on a novel electrolyte configuration for molten carbonate fuel cells (MCFCs) is presented. A single cell facility was built. The cell is characterized by a cylindrical geometry in order to reduce the structural and thermodynamic problems...
Journal Articles
Article Type: Research Papers
J. Electrochem. En. Conv. Stor. October 2011, 8(5): 051004.
Published Online: June 13, 2011
..., 8YSZ electrolyte, and LSM cathode sequentially coated on the support. Extension of triple phase boundary (TBP) at the electrode/electrolyte interfaces was done by coating SDC thin films within the pores of the electrodes using a sol-gel technique to improve performance of the cell. An anode-supported...
Journal Articles
Article Type: Research Papers
J. Electrochem. En. Conv. Stor. August 2011, 8(4): 041012.
Published Online: April 1, 2011
...Rizwan Raza; Ghazanfar Abbas; S. Khalid Imran; Imran Patel; Bin Zhu Oxide based two phase composite electrolyte ( Ce 0.9 Gd 0.1 O 2 – Y 2 O 3 ) was synthesized by coprecipitation method. The nanocomposite electrolyte showed the significant performance of power density 785 mW cm − 2 and higher...
Journal Articles
Article Type: Research Papers
J. Electrochem. En. Conv. Stor. August 2011, 8(4): 041013.
Published Online: April 1, 2011
... chemical energy into electricity without combustion. Nanostructure study is required to develop highly ionic conductive electrolytes for SOFCs. In this work, the calcium doped ceria ( Ce 0.8 Ca 0.2 O 1.9 ) coated with 20% molar ratio of two alkali carbonates (CDC-M: MCO 3 , where M = Na and K) electrolyte...
Journal Articles
Article Type: Research Papers
J. Electrochem. En. Conv. Stor. August 2011, 8(4): 041014.
Published Online: April 1, 2011
... is considered as safe) has been chosen instead of hydrocarbon-air mixtures (which require complex modeling strategy such as reforming via partial oxidation and modeling of two active fuels, i.e., hydrogen and carbon monoxide). The model is based on considering yttria-stabilized zirconia (YSZ) as an electrolyte...
Journal Articles
Article Type: Research Papers
J. Electrochem. En. Conv. Stor. August 2011, 8(4): 041006.
Published Online: March 28, 2011
... perovskite cathodes was investigated by impedance spectroscopy in symmetrical cell of the type electrode | electrolyte | electrode . “Metal-insulator” transition was found at 80 ° C in GdBaCo 2 O 6 − δ , whereas it was not observed in iron-doped sample GdBaCo 1.8 Fe 0.2 O 6 − δ due to the increase in oxygen...
Journal Articles
Article Type: Technical Briefs
J. Electrochem. En. Conv. Stor. August 2011, 8(4): 044501.
Published Online: March 25, 2011
...Sung-Chul Park; Jong-Jin Lee; Seung-Ho Lee; Jooho Moon; Sang-Hoon Hyun A solid oxide fuel cell unit cell based on a scandia-stabilized zirconia (ScSZ) electrolyte for intermediate temperature operation (below 650 ° C ) was manufactured as an anode-supported unit cell via uniaxial pressing, dip...
Journal Articles
Article Type: Research Papers
J. Electrochem. En. Conv. Stor. December 2010, 7(6): 061003.
Published Online: August 17, 2010
...Y. Liu; K. Yasumoto; S. Hashimoto; K. Takei; M. Mori; Y. Funahashi; Y. Fijishiro; A. Hirano; Y. Takeda In this work, a microtubular cell consisting of a thin Ce 0.9 Gd 0.1 O 1.95 (GDC) electrolyte (thickness: below 10 μ m ) on a support NiO/GDC anode (1.8 mm outer diameter, 200 μ m wall thickness...
Journal Articles
Article Type: Research Papers
J. Electrochem. En. Conv. Stor. December 2010, 7(6): 061005.
Published Online: August 17, 2010
...K. L. Bhamidipati; T. A. L. Harris Cost, durability, and reliability are the major issues hindering the commercialization of polymer electrolyte membrane fuel cells. Electrolyte membranes present in the fuel cell fails under chemical, thermal, and mechanical influences, which, in turn, results...
Journal Articles
Article Type: Research Papers
J. Electrochem. En. Conv. Stor. October 2010, 7(5): 051013.
Published Online: July 19, 2010
...Alessandra Sanson; Edoardo Roncari; Stefano Boldrini; Patrizia Mangifesta; Lioudmila Doubova Gadolina doped ceria (GDC) is a promising electrolyte for intermediate temperature solid oxide fuel cells (IT-SOFC). Dense layers of this material can be economically deposited by screen printing. However...
Journal Articles
Article Type: Research Papers
J. Electrochem. En. Conv. Stor. October 2010, 7(5): 051011.
Published Online: July 19, 2010
... 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...
Journal Articles
Article Type: Research Papers
J. Electrochem. En. Conv. Stor. August 2010, 7(4): 041016.
Published Online: April 9, 2010
...Sujith Mohan; S. O. Bade Shrestha Alkaline fuel cells are one of the low cost types of fuel cells. In this contribution, the performance of an alkaline fuel cell was investigated by varying different operational parameters. The cell was tested under four different electrolyte concentrations...
Journal Articles
Article Type: Research Papers
J. Electrochem. En. Conv. Stor. June 2010, 7(3): 031005.
Published Online: March 9, 2010
... SOFCs under a diameter of 1 mm using doped ceria electrolyte, and Ni–ceria based cermet for tubular support has been successfully developed and evaluated. The single microtubular SOFC showed a cell performance of 0.46 W / cm 2 (at 0.7 V) at 550 ° C with H 2 fuel. The bundle design for such tubular cell...
Journal Articles
Article Type: Research Papers
J. Electrochem. En. Conv. Stor. April 2010, 7(2): 021022.
Published Online: January 25, 2010
... on Zr 0.85 Y 0.15 O 2 (YSZ) electrolyte among various compositions because the properties of the cathodic reaction kinetics, thermal expansion compatibility, and chemical reactivity were optimized. A Ce 0.9 Gd 0.1 O 2 (CGO) interlayer was introduced between LSCM and YSZ to inhibit the formation...