DC Field | Value | Language |
---|---|---|
dc.contributor.author | Park, Kwangjin | - |
dc.contributor.author | Lee, Changbo | - |
dc.contributor.author | Bae, Joongmyeon | - |
dc.contributor.author | Yoo, Youngsung | - |
dc.date.accessioned | 2009-11-09T05:03:51Z | - |
dc.date.available | 2009-11-09T05:03:51Z | - |
dc.date.issued | 2009-08 | - |
dc.identifier.citation | International Journal of Hydrogen Energy, Vol.34, No.16, pp.6852-6860 | en |
dc.identifier.issn | 0360-3199 | - |
dc.identifier.issn | http://dx.doi.org/10.1016/j.ijhydene.2009.05.138 | - |
dc.identifier.uri | http://hdl.handle.net/10203/12252 | - |
dc.description.abstract | The electrochemical properties and microstructure changes of Pr0.3Sr0.7Co0.3Fe0.7O3−δ (PSCF3737) were studied in this paper. It was confirmed through X-ray photoelectron spectroscopy and extended X-ray absorption fine structure analysis that the oxygen vacancy of PSCF3737 was lower and that the atomic distance between an oxygen atom and a neighboring atom (especially cobalt) of PSCF3737 was longer compared to those of Pr0.3Sr0.7CoO3 − δ (PSC37). In addition, the surface reaction of PSCF3737 changed from a one-electron reduction mechanism to a two-electron reduction mechanism, which may lead to enhancement of the cathode performance. The area specific resistance of PSCF3737 was 0.11 Ω cm2 at 700 °C after changing the fabrication conditions of the cathode in order to optimize the microstructure. A single cell test was performed using PSCF3737. A maximum power density of 315 mW/cm2 at 575 °C was obtained. | en |
dc.description.sponsorship | This work is the outcome of a project of high temperature electrolysis cell development and a high temperature steam corrosion experiment for a nuclear hydrogen production system by KEPCO & KHNP and has been funded by ‘Development of 5 kWe cogeneration SOFC system’. This work is also the outcome of the fostering project by the Ministry of Knowledge Economy (MLE). The analysis facilities, such as impedance spectroscopy and the SEM/EDX, have been supported by the Ministry of Education and Human Resources Development. | en |
dc.language.iso | en_US | en |
dc.publisher | Elsevier | en |
dc.subject | Strontium-doped praseodymium | en |
dc.subject | cobalt ferrites (PSCF) | en |
dc.subject | Oxygen reduction reaction | en |
dc.subject | Gas diffusion | en |
dc.subject | Area specific resistance | en |
dc.subject | Power density | en |
dc.title | Structural and electrochemical properties of Pr0.3Sr0.7Co0.3Fe0.7O3−δ cathode for IT-SOFC | en |
dc.type | Article | en |
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