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Synthesis and electrochemical characterization of Sr.sub.2Fe.sub.1.5Mo.sub.0.5O.sub.6-Sm.sub.0.2Ce.sub.0.8O.sub.1.9 composite cathode for intermediate-temperature solid oxide fuel cells

To link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.jpowsour.2013.05.168 Byline: Ningning Dai, Zhongliang Lou, Zhenhua Wang, Xiaoxi Liu, Yiming Yan, Jinshuo Qiao, Taizhi Jiang, Kening Sun Abstract: Nanoporous composite oxides Sr.sub.2Fe.sub.1.5Mo.sub.0.5O.sub.6... Full description

Journal Title: Journal of Power Sources Dec 1, 2013, Vol.243, p.766(7)
Main Author: Dai, Ningning
Other Authors: Lou, Zhongliang , Wang, Zhenhua , Liu, Xiaoxi , Yan, Yiming , Qiao, Jinshuo , Jiang, Taizhi , Sun, Kening
Format: Electronic Article Electronic Article
Language: English
Subjects:
Quelle: Cengage Learning, Inc.
ID: ISSN: 0378-7753
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title: Synthesis and electrochemical characterization of Sr.sub.2Fe.sub.1.5Mo.sub.0.5O.sub.6-Sm.sub.0.2Ce.sub.0.8O.sub.1.9 composite cathode for intermediate-temperature solid oxide fuel cells
format: Article
creator:
  • Dai, Ningning
  • Lou, Zhongliang
  • Wang, Zhenhua
  • Liu, Xiaoxi
  • Yan, Yiming
  • Qiao, Jinshuo
  • Jiang, Taizhi
  • Sun, Kening
subjects:
  • Fuel Cell Industry -- Chemical Properties
  • Fuel Cell Industry -- Electric Properties
  • Fuel Cells -- Chemical Properties
  • Fuel Cells -- Electric Properties
  • Electron Microscopy -- Chemical Properties
  • Electron Microscopy -- Electric Properties
  • Electrochemistry -- Chemical Properties
  • Electrochemistry -- Electric Properties
ispartof: Journal of Power Sources, Dec 1, 2013, Vol.243, p.766(7)
description: To link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.jpowsour.2013.05.168 Byline: Ningning Dai, Zhongliang Lou, Zhenhua Wang, Xiaoxi Liu, Yiming Yan, Jinshuo Qiao, Taizhi Jiang, Kening Sun Abstract: Nanoporous composite oxides Sr.sub.2Fe.sub.1.5Mo.sub.0.5O.sub.6-Sm.sub.0.2Ce.sub.0.8O.sub.1.9 (SFM-SDC) have been prepared by a facile one-step method as cathode for intermediate-temperature solid oxide fuel cells (IT-SOFCs). The SFM-SDC composite materials have been characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), scanning transmission electron microscopy (STEM) and electrochemical impedance spectroscopy (EIS). The EIS results exhibit that SFM-SDC40 (wt% 60:40) cathode has encouraging electrochemical performance with low polarization resistance (R.sub.p) on YSZ (Y.sub.2O.sub.3-stabilized ZrO.sub.2) electrolyte. Subsequently, bi-layer cathodes SDC/SFM-SDC are fabricated, and excellent electrochemical performance of such composite cathodes are observed. We demonstrate that the SDC interlayer significantly decreases the R.sub.p of cathode and accelerates the charge transfer process. As a result, the R.sub.p of the SDC/SFM-SDC40 bi-layer cathodes is almost 50% less than that of SFM-SDC40 cathode on YSZ electrolyte at 800 [degrees]C, and R.sub.p is only 0.11 I[c] cm.sup.2. Compared with single cells without an interlayer, the anode-supported single cells with SDC interlayer exhibit enhancement in overall power performance. Author Affiliation: School of Chemical Engineering and Environment, Beijing Institute of Technology, Beijing 100081, China Article History: Received 10 April 2013; Revised 28 May 2013; Accepted 28 May 2013
language: English
source: Cengage Learning, Inc.
identifier: ISSN: 0378-7753
fulltext: no_fulltext
issn:
  • 0378-7753
  • 03787753
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titleSynthesis and electrochemical characterization of Sr.sub.2Fe.sub.1.5Mo.sub.0.5O.sub.6-Sm.sub.0.2Ce.sub.0.8O.sub.1.9 composite cathode for intermediate-temperature solid oxide fuel cells
creatorDai, Ningning ; Lou, Zhongliang ; Wang, Zhenhua ; Liu, Xiaoxi ; Yan, Yiming ; Qiao, Jinshuo ; Jiang, Taizhi ; Sun, Kening
ispartofJournal of Power Sources, Dec 1, 2013, Vol.243, p.766(7)
identifierISSN: 0378-7753
subjectFuel Cell Industry -- Chemical Properties ; Fuel Cell Industry -- Electric Properties ; Fuel Cells -- Chemical Properties ; Fuel Cells -- Electric Properties ; Electron Microscopy -- Chemical Properties ; Electron Microscopy -- Electric Properties ; Electrochemistry -- Chemical Properties ; Electrochemistry -- Electric Properties
descriptionTo link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.jpowsour.2013.05.168 Byline: Ningning Dai, Zhongliang Lou, Zhenhua Wang, Xiaoxi Liu, Yiming Yan, Jinshuo Qiao, Taizhi Jiang, Kening Sun Abstract: Nanoporous composite oxides Sr.sub.2Fe.sub.1.5Mo.sub.0.5O.sub.6-Sm.sub.0.2Ce.sub.0.8O.sub.1.9 (SFM-SDC) have been prepared by a facile one-step method as cathode for intermediate-temperature solid oxide fuel cells (IT-SOFCs). The SFM-SDC composite materials have been characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), scanning transmission electron microscopy (STEM) and electrochemical impedance spectroscopy (EIS). The EIS results exhibit that SFM-SDC40 (wt% 60:40) cathode has encouraging electrochemical performance with low polarization resistance (R.sub.p) on YSZ (Y.sub.2O.sub.3-stabilized ZrO.sub.2) electrolyte. Subsequently, bi-layer cathodes SDC/SFM-SDC are fabricated, and excellent electrochemical performance of such composite cathodes are observed. We demonstrate that the SDC interlayer significantly decreases the R.sub.p of cathode and accelerates the charge transfer process. As a result, the R.sub.p of the SDC/SFM-SDC40 bi-layer cathodes is almost 50% less than that of SFM-SDC40 cathode on YSZ electrolyte at 800 [degrees]C, and R.sub.p is only 0.11 I[c] cm.sup.2. Compared with single cells without an interlayer, the anode-supported single cells with SDC interlayer exhibit enhancement in overall power performance. Author Affiliation: School of Chemical Engineering and Environment, Beijing Institute of Technology, Beijing 100081, China Article History: Received 10 April 2013; Revised 28 May 2013; Accepted 28 May 2013
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titleSynthesis and electrochemical characterization of Sr.sub.2Fe.sub.1.5Mo.sub.0.5O.sub.6-Sm.sub.0.2Ce.sub.0.8O.sub.1.9 composite cathode for intermediate-temperature solid oxide fuel cells.
descriptionTo link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.jpowsour.2013.05.168 Byline: Ningning Dai, Zhongliang Lou, Zhenhua Wang, Xiaoxi Liu, Yiming Yan, Jinshuo Qiao, Taizhi Jiang, Kening Sun Abstract: Nanoporous composite oxides Sr.sub.2Fe.sub.1.5Mo.sub.0.5O.sub.6-Sm.sub.0.2Ce.sub.0.8O.sub.1.9 (SFM-SDC) have been prepared by a facile one-step method as cathode for intermediate-temperature solid oxide fuel cells (IT-SOFCs). The SFM-SDC composite materials have been characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), scanning transmission electron microscopy (STEM) and electrochemical impedance spectroscopy (EIS). The EIS results exhibit that SFM-SDC40 (wt% 60:40) cathode has encouraging electrochemical performance with low polarization resistance (R.sub.p) on YSZ (Y.sub.2O.sub.3-stabilized ZrO.sub.2) electrolyte. Subsequently, bi-layer cathodes SDC/SFM-SDC are fabricated, and excellent electrochemical performance of such composite cathodes are observed. We demonstrate that the SDC interlayer significantly decreases the R.sub.p of cathode and accelerates the charge transfer process. As a result, the R.sub.p of the SDC/SFM-SDC40 bi-layer cathodes is almost 50% less than that of SFM-SDC40 cathode on YSZ electrolyte at 800 [degrees]C, and R.sub.p is only 0.11 I[c] cm.sup.2. Compared with single cells without an interlayer, the anode-supported single cells with SDC interlayer exhibit enhancement in overall power performance. Author Affiliation: School of Chemical Engineering and Environment, Beijing Institute of Technology, Beijing 100081, China Article History: Received 10 April 2013; Revised 28 May 2013; Accepted 28 May 2013
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atitleSynthesis and electrochemical characterization of Sr.sub.2Fe.sub.1.5Mo.sub.0.5O.sub.6-Sm.sub.0.2Ce.sub.0.8O.sub.1.9 composite cathode for intermediate-temperature solid oxide fuel cells.
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abstractTo link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.jpowsour.2013.05.168 Byline: Ningning Dai, Zhongliang Lou, Zhenhua Wang, Xiaoxi Liu, Yiming Yan, Jinshuo Qiao, Taizhi Jiang, Kening Sun Abstract: Nanoporous composite oxides Sr.sub.2Fe.sub.1.5Mo.sub.0.5O.sub.6-Sm.sub.0.2Ce.sub.0.8O.sub.1.9 (SFM-SDC) have been prepared by a facile one-step method as cathode for intermediate-temperature solid oxide fuel cells (IT-SOFCs). The SFM-SDC composite materials have been characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), scanning transmission electron microscopy (STEM) and electrochemical impedance spectroscopy (EIS). The EIS results exhibit that SFM-SDC40 (wt% 60:40) cathode has encouraging electrochemical performance with low polarization resistance (R.sub.p) on YSZ (Y.sub.2O.sub.3-stabilized ZrO.sub.2) electrolyte. Subsequently, bi-layer cathodes SDC/SFM-SDC are fabricated, and excellent electrochemical performance of such composite cathodes are observed. We demonstrate that the SDC interlayer significantly decreases the R.sub.p of cathode and accelerates the charge transfer process. As a result, the R.sub.p of the SDC/SFM-SDC40 bi-layer cathodes is almost 50% less than that of SFM-SDC40 cathode on YSZ electrolyte at 800 [degrees]C, and R.sub.p is only 0.11 I[c] cm.sup.2. Compared with single cells without an interlayer, the anode-supported single cells with SDC interlayer exhibit enhancement in overall power performance. Author Affiliation: School of Chemical Engineering and Environment, Beijing Institute of Technology, Beijing 100081, China Article History: Received 10 April 2013; Revised 28 May 2013; Accepted 28 May 2013
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