Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 신동욱 | - |
dc.date.accessioned | 2018-03-13T07:34:40Z | - |
dc.date.available | 2018-03-13T07:34:40Z | - |
dc.date.issued | 2013-06 | - |
dc.identifier.citation | Journal of Power Sources, 1 November 2013, 241, p.440-448 | en_US |
dc.identifier.issn | 0378-7753 | - |
dc.identifier.uri | https://www.sciencedirect.com/science/article/pii/S0378775313007490 | - |
dc.identifier.uri | http://hdl.handle.net/20.500.11754/46164 | - |
dc.description.abstract | All-ceramic solid oxide fuel cells (SOFCs), which offer advantages in carbon tolerance, sulfur resistance and redox stability, are fabricated and evaluated. The electrolyte-supported cells are composed of a La0.75Sr0.25Cr0.5MnO3-delta (LSCM)-Ce0.9Gd0.1O1.95-delta (GDC) anode, an Y2O3-stabilized ZrO2 (YSZ) electrolyte, a GDC interdiffusion barrier layer, and a La0.8Sr0.2Co0.2Fe0.8O3-delta (LSCF)-GDC cathode. A particle-dispersed glycine-nitrate process is developed to synthesize extremely fine and homogeneous LSCM GDC ceramic composite powders. The electrochemical performance of the LSCM GDC anode is comparable to that of conventional Ni-based anodes. The impedance spectra of the all-ceramic SOFCs are successfully interpreted by the independent characterization of the individual electrodes via half-cell Measurements. The impedance of the LSCM-GDC anode is dominated by a low-frequency arc originating from the "chemical capacitance", which is associated with the variation of the oxygen non-stoichiometry in the mixed conducting ceramic electrode. In addition, the impedance arc associated with the electrode-gas interaction is observed in the LSCM-GDC anode. The rate-limiting processes for the LSCF-GDC cathode are observed to be solid-state oxygen diffusion and surface chemical exchange. Herein, the reaction mechanisms and rate-limiting processes of the all-ceramic SOFCs are discussed in detail and compared with those of conventional Ni-based SOFCs. (C) 2013 Elsevier B.V. All rights reserved. | en_US |
dc.language.iso | en | en_US |
dc.publisher | Elsevier Science B.V., Amsterdam. | en_US |
dc.subject | Solid oxide fuel cells | en_US |
dc.subject | Ceramic anode | en_US |
dc.subject | Impedance spectroscopy | en_US |
dc.subject | Chemical capacitance | en_US |
dc.subject | Rate limiting process | en_US |
dc.title | Fabrication and characterization of all-ceramic solid oxide fuel cells based on composite oxide anode | en_US |
dc.type | Article | en_US |
dc.relation.volume | 241 | - |
dc.identifier.doi | 10.1016/j.jpowsour.2013.04.139 | - |
dc.relation.page | 440-448 | - |
dc.relation.journal | JOURNAL OF POWER SOURCES | - |
dc.contributor.googleauthor | Kim, Jeonghee | - |
dc.contributor.googleauthor | Shin, Dongwook | - |
dc.contributor.googleauthor | Son, Ji-Won | - |
dc.contributor.googleauthor | Lee, Jong-Ho | - |
dc.contributor.googleauthor | Kim, Byung-Kook | - |
dc.contributor.googleauthor | Je, Hae-June | - |
dc.contributor.googleauthor | Lee, Hae-Weon | - |
dc.contributor.googleauthor | Yoon, Kyung Joong | - |
dc.relation.code | 2013010943 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF ENGINEERING[S] | - |
dc.sector.department | DIVISION OF MATERIALS SCIENCE AND ENGINEERING | - |
dc.identifier.pid | dwshin | - |
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