Publications
547 results found
Colomer MT, Kilner JA, 2011, Ni-doped lanthanum gallate perovskites: Synthesis and structural, microstructural, and electrical characterisation, SOLID STATE IONICS, Vol: 182, Pages: 76-81, ISSN: 0167-2738
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- Citations: 17
Pena-Martinez J, Kilner JA, 2011, Workshop on SOFC: Materials and Technology, FUEL CELLS, Vol: 11, Pages: 9-9, ISSN: 1615-6846
Laguna-Bercero MA, Campana R, Larrea A, et al., 2011, Performance and Aging of Microtubular YSZ-based Solid Oxide Regenerative Fuel Cells, Workshop on Solid Oxide Fuel Cells (SOFCs), Publisher: WILEY-BLACKWELL, Pages: 116-123, ISSN: 1615-6846
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- Citations: 56
Morris RJH, Fearn S, Perkins J, et al., 2011, The use of low-energy SIMS (LE-SIMS) for nanoscale fuel cell material development, SURFACE AND INTERFACE ANALYSIS, Vol: 43, Pages: 635-638, ISSN: 0142-2421
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- Citations: 2
Tarancon A, Chroneos A, Parfitt D, et al., 2011, Oxygen Diffusion in Ordered/Disordered Double Perovskites, 12th International Symposium on Solid Oxide Fuel Cells (SOFC), Publisher: ELECTROCHEMICAL SOC INC, Pages: 1151-1154, ISSN: 1938-5862
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- Citations: 4
Kushima A, Parfitt D, Chroneos A, et al., 2011, Interstitialcy diffusion of oxygen in tetragonal La<sub>2</sub>CoO<sub>4+δ</sub>, PHYSICAL CHEMISTRY CHEMICAL PHYSICS, Vol: 13, Pages: 2242-2249, ISSN: 1463-9076
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- Citations: 97
Cumming DJ, Kilner JA, Skinner S, 2011, Structural properties of Ce-doped strontium titanate for fuel cell applications, JOURNAL OF MATERIALS CHEMISTRY, Vol: 21, Pages: 5021-5026, ISSN: 0959-9428
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- Citations: 26
Seymour ID, Chroneos A, Kilner JA, et al., 2011, Defect processes in orthorhombic <i>Ln</i>BaCo<sub>2</sub>O<sub>5.5</sub> double perovskites, PHYSICAL CHEMISTRY CHEMICAL PHYSICS, Vol: 13, Pages: 15305-15310, ISSN: 1463-9076
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- Citations: 68
Parfitt D, Chroneos A, Tarancon A, et al., 2011, Oxygen ion diffusion in cation ordered/disordered GdBaCo<sub>2</sub>O<sub>5+δ</sub>, JOURNAL OF MATERIALS CHEMISTRY, Vol: 21, Pages: 2183-2186, ISSN: 0959-9428
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- Citations: 129
Sadykov VA, Pavlova SN, Kharlamova TS, et al., 2010, Perovskites and their nanocomposites with fluorite-like oxides as materials for solid oxide fuel cells cathodes and oxygen-conducting membranes: Mobility and reactivity of the surface/bulk oxygen as a key factor of their performance, Perovskites: Structure, Properties and Uses, Pages: 67-178, ISBN: 9781616685256
This paper presents results of research aimed at elucidating factors controlling mobility and reactivity of the surface and bulk oxygen of complex perovskite-like AnBmOz oxides (manganites, ferrites, cobaltites, nickelates of La/Sr) and their nanocomposites with fluorite-like oxides (doped ceria or zirconia) as related to their performance in the intermediate temperature solid oxide fuel cells (IT SOFC) cathodes and oxygen separation membranes. Real/defect structure and surface properties of these materials as a function of both composition, preparation route and sintering temperature were studied by combination of TEM with EDX, XRD, EXAFS, UV-Vis and XPS methods. Lattice oxygen mobility, strength of oxygen species bonding with the surface sites and their reactivity for both dispersed and dense materials were estimated by oxygen isotope exchange, temperature-programmed desorption and reduction by H2 and CH4. Coefficients of oxygen diffusion in dense materials were estimated by analysis of dynamics of the oxygen loss monitored by measurements of the weight loss or conductivity relaxations. For analysis of atomic-scale factors controlling oxygen bonding strength and mobility, quantum-chemical approaches including the Density Functional Theory (DFT) in spin-polarized SLDA approximation and semiempirical Interacting Bonds Method were applied. For simple perovskites, along with well-known effects of anion vacancies/interstitial oxygen atoms and high-charge transition metal cations generated due to the oxygen non-toichiometry, pronounced effects of the surface faces termination, ordering of oxygen vacancies and appearance of extended defects were found to affect the oxygen mobility and reactivity as well. From the microscopic point of view, decreasing the Me-O bonding strength and increasing the distance between A and B cations due to the lattice parameter increase helps to decrease the activation barriers for the oxygen diffusion in the perovskite-like lattice. For perov
Burriel M, Casas-Cabanas M, Zapata J, et al., 2010, Influence of the Microstructure on the High-Temperature Transport Properties of GdBaCo<sub>2</sub>O<sub>5.5+δ</sub> Epitaxial Films, CHEMISTRY OF MATERIALS, Vol: 22, Pages: 5512-5520, ISSN: 0897-4756
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- Citations: 17
Perkins JM, Fearn S, Cook SN, et al., 2010, Anomalous Oxidation States in Multilayers for Fuel Cell Applications, ADVANCED FUNCTIONAL MATERIALS, Vol: 20, Pages: 2664-2674, ISSN: 1616-301X
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- Citations: 14
Berenov AV, Atkinson A, Kilner JA, et al., 2010, Oxygen tracer diffusion and surface exchange kinetics in La<sub>0.6</sub>Sr<sub>0.4</sub>CoO<sub>3-δ</sub>, SOLID STATE IONICS, Vol: 181, Pages: 819-826, ISSN: 0167-2738
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- Citations: 116
Cavallaro A, Burriel M, Roqueta J, et al., 2010, Electronic nature of the enhanced conductivity in YSZ-STO multilayers deposited by PLD, SOLID STATE IONICS, Vol: 181, Pages: 592-601, ISSN: 0167-2738
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- Citations: 98
Sayers R, De Souza RA, Kilner JA, et al., 2010, Low temperature diffusion and oxygen stoichiometry in lanthanum nickelate, SOLID STATE IONICS, Vol: 181, Pages: 386-391, ISSN: 0167-2738
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- Citations: 75
Laguna-Bercero MA, Kilner JA, Skinner SJ, 2010, Performance and Characterization of (La, Sr)MnO<sub>3</sub>/YSZ and La<sub>0.6</sub>Sr<sub>0.4</sub>Co<sub>0.2</sub>Fe<sub>0.8</sub>O<sub>3</sub> Electrodes for Solid Oxide Electrolysis Cells, CHEMISTRY OF MATERIALS, Vol: 22, Pages: 1134-1141, ISSN: 0897-4756
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- Citations: 86
Parfitt D, Chroneos A, Kilner JA, et al., 2010, Molecular dynamics study of oxygen diffusion in Pr<sub>2</sub>NiO<sub>4+δ</sub>, PHYSICAL CHEMISTRY CHEMICAL PHYSICS, Vol: 12, Pages: 6834-6836, ISSN: 1463-9076
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- Citations: 92
Tarancon A, Burriel M, Santiso J, et al., 2010, Advances in layered oxide cathodes for intermediate temperature solid oxide fuel cells, JOURNAL OF MATERIALS CHEMISTRY, Vol: 20, Pages: 3799-3813, ISSN: 0959-9428
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- Citations: 360
Laguna-Bercero MA, Campana R, Larrea A, et al., 2010, Steam Electrolysis Using a Microtubular Solid Oxide Fuel Cell, JOURNAL OF THE ELECTROCHEMICAL SOCIETY, Vol: 157, Pages: B852-B855, ISSN: 0013-4651
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- Citations: 42
Chroneos A, Parfitt D, Kilner JA, et al., 2010, Anisotropic oxygen diffusion in tetragonal La<sub>2</sub>NiO<sub>4+δ</sub>: molecular dynamics calculations, JOURNAL OF MATERIALS CHEMISTRY, Vol: 20, Pages: 266-270, ISSN: 0959-9428
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- Citations: 181
Laguna-Bercero MA, Skinner SJ, Kilner JA, 2009, Performance of solid oxide electrolysis cells based on scandia stabilised zirconia, JOURNAL OF POWER SOURCES, Vol: 192, Pages: 126-131, ISSN: 0378-7753
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- Citations: 106
Kilner J, Edwards P, Kuznetsov V, 2009, Cell-ing future power, MATERIALS WORLD, Vol: 17, Pages: 36-38, ISSN: 0967-8638
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- Citations: 2
Raj ES, Atkinson A, Kilner JA, 2009, Oxygen diffusion studies on (Y<sub>2</sub>O<sub>3</sub>)<sub>2</sub>(Sc<sub>2</sub>O<sub>3</sub>)<sub>9</sub>(ZrO<sub>2</sub>)<sub>89</sub>, SOLID STATE IONICS, Vol: 180, Pages: 952-955, ISSN: 0167-2738
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- Citations: 18
Irvine JTS, Kilner JA, Freer R, 2009, Special Issue Electroceramics XI - Ionic, Electronic and Mixed Conductors, Fuel Cells Symposium, SOLID STATE IONICS, Vol: 180, Pages: 773-773, ISSN: 0167-2738
kilner, berenov, rossiny, 2009, Diffusivity of the Oxide Ion in Perovskite Oxides, Perovskite Oxide for Solid Oxide Fuel Cells, Editors: Ishihara, Pages: 95-116, ISBN: 9780387777078
Each chapter in the book is written by leading international researchers and covers topics including:General Introduction of SOFC; Perovskite fast oxide ion ...
Rupasov D, Chroneos A, Parfitt D, et al., 2009, Oxygen diffusion in Sr<sub>0.75</sub>Y<sub>0.25</sub>CoO<sub>2.625</sub>: A molecular dynamics study, PHYSICAL REVIEW B, Vol: 79, ISSN: 2469-9950
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- Citations: 65
Ruiz-Trejo E, Kilner JA, 2009, Possible proton conduction in Ce<sub>0.9</sub>Gd<sub>0.1</sub>O<sub>2-δ</sub> nanoceramics, European-Science-Foundation-Exploratory Workshop on Proton Conducting Materials for Next-Generation Solid Oxide Fuel Cells, Publisher: SPRINGER, Pages: 523-528, ISSN: 0021-891X
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- Citations: 44
Kilner JA, 2009, Accelerated R&D of Solid Oxide Fuel Cells with Lowering Operation Temperature Vision, ELECTROCHEMISTRY, Vol: 77, Pages: 113-113, ISSN: 1344-3542
Kilner JA, 2009, Vision, Electrochemistry, Vol: 77, ISSN: 1344-3542
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- Citations: 2
Druce J, Kilner JA, 2009, Composite ceramic membranes for oxygen separation in carbon capture and storage systems, Pages: 327-336, ISSN: 1938-5862
CGO-LSCF composite membranes have been characterised with a view to applications in oxygen separators for oxyfueled boilers in Carbon Capture and Storage (CCS) systems. Although commonly believed to be chemically stable together, evidence is presented that an interdiffusion reaction occurs on sintering at 1250°C for 4 hours. Isotopic oxygen exchange measurements show that this does not appear to have any detrimental effect on the oxygen exchange properties. Similarly, electrical conductivity was also measured, and no detrimental effect was observed for these properties. ©The Electrochemical Society.
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