• 综合
  • 标题
  • 关键词
  • 摘要
  • 学者
  • 期刊-刊名
  • 期刊-ISSN
  • 会议名称
搜索

作者:

Yang, Tao (Yang, Tao.) | Li, Fan (Li, Fan.) (学者:李钒) | Xia, Dingguo (Xia, Dingguo.) (学者:夏定国)

收录:

EI Scopus SCIE

摘要:

A composite Au@Bi2Cu0.1V0.9O5.35 (BICUVOX10) cathode is prepared and tested as a ceramal electrode for use in low-temperature solid-oxide fuel cells (SOFCs). Au powder is coated onto the surface of BICUVOX10 from an aqueous solution of the chloride with NaBH4 as a reductant. The valence of the surface Au is identified as Au(0) by X-ray photoelectron spectroscopy (XPS). The BICUVOX10 substrate is synthesized from V2O3, CuO, and Bi2O3 and then investigated by field-emission scanning electron microscopy (SEM). The average size of the particles is estimated to be 100 nm after milling with a planetary ball-mill. The core-shell structure of Au@BICUVOX10 is confirmed by transmission electron microscopy (TEM). The two-dimensional coefficient of thermal expansion (CTE) and the conductivities of mixed powders with different proportions of Au is also tested from room temperature to 600 degrees C. A single fuel cell is fabricated with Au@BICUVOX10 as the cathode, NiO/GDC (Gd0.1Ce0.9O1.95) as the supporting anode, and GDC as the electrolyte. The electrochemical performance is tested and the highest power densities of the fuel cell are determined to be 127, 206, 359, 469, and 474 mW cm(-2) at 450, 500, 525, 550, and 575 degrees C, respectively. Finally, the stability of the single SOFC is tested, whereupon it is found that its output is maintained for at least the first 20 h. (C) 2009 Elsevier B.V. All rights reserved.

关键词:

Au nanoparticles BICUVOX10 Cathode Core-shell structure Low-temperature SOFC

作者机构:

  • [ 1 ] [Yang, Tao]Beijing Univ Technol BJUT CEEE, Coll Environm & Energy Engn, Beijing 100022, Peoples R China
  • [ 2 ] [Li, Fan]Beijing Univ Technol BJUT CEEE, Coll Environm & Energy Engn, Beijing 100022, Peoples R China
  • [ 3 ] [Xia, Dingguo]Beijing Univ Technol BJUT CEEE, Coll Environm & Energy Engn, Beijing 100022, Peoples R China

通讯作者信息:

  • 夏定国

    [Xia, Dingguo]Beijing Univ Technol BJUT CEEE, Coll Environm & Energy Engn, Beijing 100022, Peoples R China

查看成果更多字段

相关关键词:

来源 :

JOURNAL OF POWER SOURCES

ISSN: 0378-7753

年份: 2010

期: 9

卷: 195

页码: 2514-2519

9 . 2 0 0

JCR@2022

ESI学科: ENGINEERING;

JCR分区:1

中科院分区:1

被引次数:

WoS核心集被引频次: 7

SCOPUS被引频次: 7

ESI高被引论文在榜: 0 展开所有

万方被引频次:

中文被引频次:

近30日浏览量: 1

在线人数/总访问数:741/2909947
地址:北京工业大学图书馆(北京市朝阳区平乐园100号 邮编:100124) 联系我们:010-67392185
版权所有:北京工业大学图书馆 站点建设与维护:北京爱琴海乐之技术有限公司