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Nickel-cermet electrodes for high-temperature electrochemical devices made using nanomaterials |
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| Authors: | B. L. Kuzin S. M. Beresnev D. A. Osinkin N. M. Bogdanovich Yu. A. Kotov A. V. Bagazeev |
| Affiliation: | (1) Department of Geosciences, Crystallography Laboratory, Virginia Tech, Blacksburg, VA 24061, USA;(2) Peter A. Rock Thermochemistry Laboratory and NEAT ORU, University of California, Davis, CA 95616, USA;(3) Intense Pulsed Neutron Source Division, Argonne National Laboratory, Argonne, IL 60439, USA;(4) Chemical Sciences Division, Oak Ridge National Laboratory, MS-6110, Oak Ridge, TN 37831-6110, USA;(5) Neutron Scattering Science Division, Oak Ridge National Laboratory, MS-6475, Oak Ridge, TN 37831-6475, USA;(6) Department of Chemical Engineering, Vanderbilt University, Nashville, TN 37235, USA |
| Abstract: | Characteristics of nickel-cermet anodes obtained from weakly aggregated NiO nanopowders made by wire electric blasting (NiO/WEB) were studied. Electrodes made of NiO/WEB nanopowders have low sheet resistance (<0.1 Ohm) and high electrochemical activity (R η = 0.06–0.09 Ohm cm2 at 850–900°C). Prolonged studies of symmetric cells of the (0.9H2 + 0.1H2O) Ni-SSZ + CeO2/YSZ/CeO2 + Ni-SSZ (0.9H2 + 0.1H2O) type at the temperature of 850°C showed that the electrodes preserve sufficiently high activity (R η < 0.1 Ohm cm2) for 1000 h. Using a NiO-WEB powder allows not performing presynthesis of nickel-cermet and decreasing the anode baking temperature to 1200°C. |
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