Publications
280 results found
Wang X, Atkinson A, Chirivi L, et al., 2010, Evolution of stress and morphology in thermal barrier coatings, SURFACE & COATINGS TECHNOLOGY, Vol: 204, Pages: 3851-3857, ISSN: 0257-8972
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- Citations: 29
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
Seeharaj P, Berenov AV, Raj E, et al., 2010, Mixed-conducting LSC/CGO and Ag/CGO composites for passive oxygen separation membranes, Solid State Ionics, ISSN: 1872-7689
Wang X, Wu RT, Atkinson A, 2010, Characterisation of residual stress and interface degradation in TBCs by photo-luminescence piezo-spectroscopy, SURFACE & COATINGS TECHNOLOGY, Vol: 204, Pages: 2472-2482, ISSN: 0257-8972
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- Citations: 23
Atkinson A, Barnett S, Gorte RJ, et al., 2010, Advanced anodes for high-temperature fuel cells, Materials for Sustainable Energy: A Collection of Peer-Reviewed Research and Review Articles from Nature Publishing Group, Pages: 213-223, ISBN: 9789814317641
Fuel cells will undoubtedly find widespread use in this new millennium in the conversion of chemical to electrical energy, as they offer very high efficiencies and have unique scalability in electricity-generation applications. The solid-oxide fuel cell (SOFC) is one of the most exciting of these energy technologies; it is an all-ceramic device that operates at temperatures in the range 500–1,000 °C. The SOFC offers certain advantages over lower temperature fuel cells, notably its ability to use carbon monoxide as a fuel rather than being poisoned by it, and the availability of high-grade exhaust heat for combined heat and power, or combined cycle gas-turbine applications. Although cost is clearly the most important barrier to widespread SOFC implementation, perhaps the most important technical barriers currently being addressed relate to the electrodes, particularly the fuel electrode or anode. In terms of mitigating global warming, the ability of the SOFC to use commonly available fuels at high efficiency, promises an effective and early reduction in carbon dioxide emissions, and hence is one of the lead new technologies for improving the environment. Here, we discuss recent developments of SOFC fuel electrodes that will enable the better use of readily available fuels.
Raj A, Rudkin RA, Atkinson A, 2010, Cogeneration of HCN in a Solid Oxide Fuel Cell, JOURNAL OF THE ELECTROCHEMICAL SOCIETY, Vol: 157, Pages: B719-B725, ISSN: 0013-4651
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- Citations: 6
Sun B, Rudkin RA, Atkinson A, 2009, Effect of Thermal Cycling on Residual Stress and Curvature of Anode-Supported SOFCs, FUEL CELLS, Vol: 9, Pages: 805-813, ISSN: 1615-6846
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- Citations: 52
Wang X, Ooi TG, Atkinson A, et al., 2009, The Influence of La Doping on the Oxidation Mechanism and Stresses in the Thermally Grown Oxide on CMSX-4 with Pt-Aluminide Bond Coat, OXIDATION OF METALS, Vol: 72, Pages: 191-211, ISSN: 0030-770X
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- Citations: 2
Sato K, Suzuki K, Yashiro K, et al., 2009, Effect of Y<sub>2</sub>O<sub>3</sub> addition on the conductivity and elastic modulus of (CeO<sub>2</sub>)<sub>1-<i>x</i></sub>(YO<sub>1.5</sub>)<i><sub>x</sub></i>, SOLID STATE IONICS, Vol: 180, Pages: 1220-1225, ISSN: 0167-2738
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- Citations: 18
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
Plews AG, Atkinson A, Trampe T, et al., 2009, Control of Porosity and Expansion in Starch Extrusion by Monitoring Pressure at Die Outlet, BIOFOAMS Conference 2007, Publisher: SAGE PUBLICATIONS LTD, Pages: 67-82, ISSN: 0021-955X
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- Citations: 2
Wang X, Lee G, Atkinson A, 2009, Investigation of TBCs on turbine blades by photoluminescence piezospectroscopy, ACTA MATERIALIA, Vol: 57, Pages: 182-195, ISSN: 1359-6454
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- Citations: 43
Adjiman C, Atkinson A, Azad A, et al., 2009, A Review of Progress in the UK Supergen Fuel Cell Programme, 11th International Symposium on Solid Oxide Fuel Cells (SOFC), Publisher: ELECTROCHEMICAL SOC INC, Pages: 35-42, ISSN: 1938-5862
Plews AG, Atkinson A, McGrane S, 2009, Discriminating Structural Characteristics of Starch Extrudates through X-ray Micro-tomography using a 3-D Watershed Algorithm, International Journal of Food Engineering, Vol: 5
X-ray micro-tomography (XMT) was used to characterise the pore structure of two open-cell biopolymer foams (starch extrudates). A three-dimensional watershed algorithm was applied to XMT images to segment pore structure. Distributions of pore sizes and interconnecting pore aperture sizes were determined and pore geometry was visualised. The technique was used to analyse samples having an inhomogeneous porosity distribution. Results were not sensitive to threshold values set during image analysis. Pore size and pore aperture distributions were extracted. Pore size was based on volume fraction, aperture size was based on area fraction and both on number frequency. Volume fraction of porosity was calculated from image analysis and compared with that deduced from density measurements. The value from image analysis was sensitive to the set threshold contrast. Average cell wall thickness was calculated from two-dimensional image analysis. This shows that XMT, with appropriate data processing, is a powerful method for structural characterisation of starch extrudates.
Atkinson A, Kim J-S, Rudkin RA, et al., 2009, Constrained Sintering of Zirconia Films, 11th International Symposium on Solid Oxide Fuel Cells (SOFC), Publisher: ELECTROCHEMICAL SOC INC, Pages: 1531-1540, ISSN: 1938-5862
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- Citations: 2
Kharton VV, Marques FMB, Kilner JA, et al., 2009, Oxygen ion-conducting materials, Solid State Electrochemistry I, Editors: Kharton, Publisher: Wiley-VCH, Pages: 301-334, ISBN: 978-3-527-32318-0
Atkinson A, Marquis AJ, 2009, Mechanical Stability, Handbook of Fuel Cells-Fundamentals, Technology and Applications, Editors: Vielstich, Yokokawa, Gasteiger, Publisher: John Wiley, Pages: 463-474, ISBN: 978-0-470-72311-1
Offer GJ, Shearing P, Golbert JI, et al., 2008, Using electrochemical impedance spectroscopy to compensate for errors when measuring polarisation curves during three-electrode measurements of solid oxide fuel cell electrodes, ELECTROCHIMICA ACTA, Vol: 53, Pages: 7614-7621, ISSN: 0013-4686
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- Citations: 38
Sedlacek J, Galusek D, Svancarek P, et al., 2008, Abrasive wear of Al<sub>2</sub>O<sub>3</sub>-SiC and Al<sub>2</sub>O<sub>3</sub>-(SiC)-C composites with micrometer- and submicrometer-sized alumina matrix grains, JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, Vol: 28, Pages: 2983-2993, ISSN: 0955-2219
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- Citations: 29
Berenov A, Angeles E, Rossiny J, et al., 2008, Structure and Transport in Rare Earth Ferrates, 16th International Conference on Solid State Ionics
Berenov A, Angeles E, Rossiny J, et al., 2008, Structure And Transport In Rare-Earth Ferrates, Solid State Ionic, Vol: 179, Pages: 1090-1093
Simrick NJ, Kilner JA, Atkinson A, 2008, Annealed Thin-Film Silver Cathodes, EU SOFC Forum
Sarantaridis D, Rudkin RA, Atkinson A, 2008, Oxidation failure modes of anode-supported solid oxide fuel cells, Journal of Power Sources, Vol: 180, Pages: 704-710
Fracture Investigations on anode-supported solid oxide fuel cells (SOFCs) using Ni-based anode supports are presented aiming at understanding how much oxidation such a cell can tolerate before incurring irreversible mechanical damage. The cells were oxidised both directly in air and electrochemically. The different oxidation procedures performed exhibited different damage modes. For free-standing cells oxidised in air, the main damage mode was electrolyte cracking after oxidation of approximately 50% of the Ni in the substrate. However, cells oxidised electrochemically failed by substrate cracking after only ca. 5% of the Ni was oxidised, mainly due to the non-uniform nature of oxidation in the SOFC. Models of the stress generation and fracture processes were developed for interpretation of the results
Sarantaridis D, Chater RJ, Atkinson A, 2008, Changes in physical and mechanical properties of SOFCNi-YSZ composites caused by redox cycling, JOURNAL OF THE ELECTROCHEMICAL SOCIETY, Vol: 155, Pages: B467-B472, ISSN: 0013-4651
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- Citations: 78
Berenov A, Atkinson A, Kilner JA, et al., 2008, Oxygen tracer diffusion in Ba0.5Sr0.5Co0.8Fe0.2O3-d, EUSOFC Forum
Raj ES, Atkinson A, Kilner JA, 2008, Oxygen Diffusion studies on (Y2O3)2(Sc2O3)9(ZrO2)89, EU SOFC Forum
Busawon AN, Sarantaridis D, Atkinson A, 2008, Ni infiltration as a possible solution to the redox problem of SOFC anodes, ELECTROCHEMICAL AND SOLID STATE LETTERS, Vol: 11, Pages: B186-B189, ISSN: 1099-0062
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- Citations: 86
Kim J-S, Rudkin RA, Atkinson A, 2008, Constrained Sintering of SOFC Electrolytes, EU SOFC Forum
Brett DJL, Atkinson A, Brandon NP, et al., 2008, Intermediate temperature solid oxide fuel cells, CHEMICAL SOCIETY REVIEWS, Vol: 37, Pages: 1568-1578, ISSN: 0306-0012
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- Citations: 1121
Berenov A, Wood H, Atkinson A, 2007, Evaluation of La0.8Sr0.2Cu1−xMnxOy Double Perovskite for Use in SOFCs, Journal of the Electrochemical Society, Vol: 154, Pages: B1362-B1367
Compounds with the general formula La0.8Sr0.2Cu1−xMnxOy were prepared by the citrate route for use in solid oxide fuel cells (SOFCs). A solid solution region containing hexagonal perovskite phase was formed when 0.6x1, in which the oxygen content in air changes from oxygen stoichiometry to oxygen excess with Mn doping. The temperature dependence of electrical conductivity changes from metallic-like behavior in La0.8Sr0.2CuO2.49 to semiconducting type in La0.8Sr0.2MnO3.08. Mn doping resulted in a decrease in the conductivity (with the minimum at 40% Mn doping), whereas the thermal expansion coefficient decreased linearly with x. A defect model for the mixed Cu–Mn perovskite is proposed and related to its physical and electrochemical properties.
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