中国科学院大连化学物理研究所机构知识库
Advanced  
DICP OpenIR  > 中国科学院大连化学物理研究所  > 期刊论文
题名: Investigation of a Ba(0.5)Sr(0.5)Co(0.8)Fe(0.2)O3-delta based cathode IT-SOFC - I. The effect of CO2 on the cell performance
作者: Yan, A;  Cheng, M;  Dong, YL;  Yang, WS;  Maragou, V;  Song, SQ;  Tsiakaras, P
关键词: intermediate-temperature solid oxide fuel cells (IT-SOFCs) ;  BSCF cathodes ;  effect of carbon dioxide
刊名: APPLIED CATALYSIS B-ENVIRONMENTAL
发表日期: 2006-06-20
DOI: 10.1016/j.apcatb.2006.02.021
卷: 66, 期:1-2, 页:64-71
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Engineering, Environmental ;  Engineering, Chemical
研究领域[WOS]: Chemistry ;  Engineering
英文摘要: A Ba0.5Sr0.5Co0.08Fe0.2O3-delta (BSCF) based cathode intermediate temperature solid oxide fuel cell (IT-SOFC) was fabricated and tested. The effect of carbon dioxide on the performance of BSCF cathode was evaluated at temperatures ranging from 450 to 750 degrees C. The current density was recorded at a constant discharge of voltage value and the electrochemical impedance spectra (EIS) measurements were carried out in the absence and in the presence of CO2 in the oxidant gas line (cathode). It was found that the presence even of relatively small quantities (0.28-3.07%) of CO2 negatively affects the H-2-IT-SOFC performance. It was shown that as the CO2 content in the cathode side increases and as the operation temperature decreases, the fuel cell performance is seriously aggravated up to 550 degrees C in a reversible way. A further decrease of the operation temperature deteriorates the SOFC performance irreversibly. However, the cell performance can be recovered after treatment at 800 degrees C in pure oxygen. It was also shown that as the CO2 content increases, the rate of oxygen electrochemical reduction decreases and the corresponding apparent activation energy increases linearly. The EIS results show that the interface resistance increases dramatically after carbon dioxide is added into the oxidant gas line. It is believed that carbon dioxide and temperature, acting in a synergetic way, decrease at least the cathode activity for oxygen reduction. This behaviour could be attributed to the strong carbon dioxide adsorption on the BSCF surface and to the formation of carbonates at temperatures as low as 500 and 450 degrees C. (c) 2006 Elsevier B.V. All rights reserved.
关键词[WOS]: OXIDE FUEL-CELLS ;  LOW-TEMPERATURE SOFCS ;  ANODE-SUPPORTED SOFC ;  COMPOSITE CATHODES ;  ELECTROCHEMICAL PROPERTIES ;  OXYGEN-TRANSPORT ;  PEROVSKITE ;  ELECTROLYTES ;  ETHANOL ;  OPTIMIZATION
语种: 英语
WOS记录号: WOS:000238295600008
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/140334
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

Files in This Item:

There are no files associated with this item.


作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Fuel Cell R&D Ctr, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
3.Univ Thessalia, Dept Mech & Ind Engn, Volos 38334, Greece

Recommended Citation:
Yan, A,Cheng, M,Dong, YL,et al. Investigation of a Ba(0.5)Sr(0.5)Co(0.8)Fe(0.2)O3-delta based cathode IT-SOFC - I. The effect of CO2 on the cell performance[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2006,66(1-2):64-71.
Service
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Yan, A]'s Articles
 [Cheng, M]'s Articles
 [Dong, YL]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Yan, A]‘s Articles
 [Cheng, M]‘s Articles
 [Dong, YL]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to Del.icio.us  Add to Digg  Add to Reddit 
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Powered by CSpace