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Title: Investigation of SmBaCuCoO{sub 5+{delta}} double-perovskite as cathode for proton-conducting solid oxide fuel cells

Abstract

SmBaCuCoO{sub 5+{delta}}, a double-perovskite oxide, was synthesized by the modified Pechini method and developed as cathode material for proton-conducting solid oxide fuel cells. The SmBaCuCoO{sub 5+{delta}} powders calcined at 800 {sup o}C, show the double-perovskite structure in powder XRD pattern. SmBaCuCoO{sub 5+{delta}} has a more suitable thermal expansion coefficient than SmBaCo{sub 2}O{sub 5+{delta}} for BaCe{sub 0.7}Zr{sub 0.1}Y{sub 0.2}O{sub 3-{delta}} electrolyte-based solid oxide fuel cells. The single cell was tested with humidified hydrogen ({approx}3% H{sub 2}O) as the fuel and static air as the oxidant. The performance of the cell was characterized by DC Electronic Load and AC impedance spectroscopy. The peak power densities reached 355-86 mW cm{sup -2} in the range of 700-550 {sup o}C and the interfacial polarization resistance decreased with increasing operation temperature, from 3.1 {Omega} cm{sup 2} at 550 {sup o}C to 0.22 {Omega} cm{sup 2} at 700 {sup o}C. The high power density and low polarization demonstrate that SmBaCuCoO{sub 5+{delta}} is a potential candidate for proton-conducting solid oxide fuel cells.

Authors:
; ;  [1];  [1]
  1. CAS Key Laboratory of Materials for Energy Conversion, Department of Material Science and Engineering, University of Science and Technology of China, Hefei 230026 (China)
Publication Date:
OSTI Identifier:
22202872
Resource Type:
Journal Article
Journal Name:
Materials Research Bulletin
Additional Journal Information:
Journal Volume: 45; Journal Issue: 11; Other Information: Copyright (c) 2010 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0025-5408
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CATHODES; DENSITY; PEROVSKITE; POLARIZATION; POWDERS; POWER DENSITY; PROTONS; SOLID OXIDE FUEL CELLS; SPECTROSCOPY; THERMAL EXPANSION; X-RAY DIFFRACTION

Citation Formats

Zhu, Zhiwen, Tao, Zetian, Bi, Lei, and Liu, Wei. Investigation of SmBaCuCoO{sub 5+{delta}} double-perovskite as cathode for proton-conducting solid oxide fuel cells. United States: N. p., 2010. Web. doi:10.1016/J.MATERRESBULL.2010.06.059.
Zhu, Zhiwen, Tao, Zetian, Bi, Lei, & Liu, Wei. Investigation of SmBaCuCoO{sub 5+{delta}} double-perovskite as cathode for proton-conducting solid oxide fuel cells. United States. https://doi.org/10.1016/J.MATERRESBULL.2010.06.059
Zhu, Zhiwen, Tao, Zetian, Bi, Lei, and Liu, Wei. Mon . "Investigation of SmBaCuCoO{sub 5+{delta}} double-perovskite as cathode for proton-conducting solid oxide fuel cells". United States. https://doi.org/10.1016/J.MATERRESBULL.2010.06.059.
@article{osti_22202872,
title = {Investigation of SmBaCuCoO{sub 5+{delta}} double-perovskite as cathode for proton-conducting solid oxide fuel cells},
author = {Zhu, Zhiwen and Tao, Zetian and Bi, Lei and Liu, Wei},
abstractNote = {SmBaCuCoO{sub 5+{delta}}, a double-perovskite oxide, was synthesized by the modified Pechini method and developed as cathode material for proton-conducting solid oxide fuel cells. The SmBaCuCoO{sub 5+{delta}} powders calcined at 800 {sup o}C, show the double-perovskite structure in powder XRD pattern. SmBaCuCoO{sub 5+{delta}} has a more suitable thermal expansion coefficient than SmBaCo{sub 2}O{sub 5+{delta}} for BaCe{sub 0.7}Zr{sub 0.1}Y{sub 0.2}O{sub 3-{delta}} electrolyte-based solid oxide fuel cells. The single cell was tested with humidified hydrogen ({approx}3% H{sub 2}O) as the fuel and static air as the oxidant. The performance of the cell was characterized by DC Electronic Load and AC impedance spectroscopy. The peak power densities reached 355-86 mW cm{sup -2} in the range of 700-550 {sup o}C and the interfacial polarization resistance decreased with increasing operation temperature, from 3.1 {Omega} cm{sup 2} at 550 {sup o}C to 0.22 {Omega} cm{sup 2} at 700 {sup o}C. The high power density and low polarization demonstrate that SmBaCuCoO{sub 5+{delta}} is a potential candidate for proton-conducting solid oxide fuel cells.},
doi = {10.1016/J.MATERRESBULL.2010.06.059},
url = {https://www.osti.gov/biblio/22202872}, journal = {Materials Research Bulletin},
issn = {0025-5408},
number = 11,
volume = 45,
place = {United States},
year = {2010},
month = {11}
}