Advanced synthesis of materials for intermediate-temperature solid oxide fuel cells

Shao, Zongping, Zhou, Wei and Zhu, Zhonghua (2012) Advanced synthesis of materials for intermediate-temperature solid oxide fuel cells. Progress in Materials Science, 57 4: 804-874. doi:10.1016/j.pmatsci.2011.08.002

Author Shao, Zongping
Zhou, Wei
Zhu, Zhonghua
Title Advanced synthesis of materials for intermediate-temperature solid oxide fuel cells
Journal name Progress in Materials Science   Check publisher's open access policy
ISSN 0079-6425
Publication date 2012-05
Year available 2011
Sub-type Critical review of research, literature review, critical commentary
DOI 10.1016/j.pmatsci.2011.08.002
Volume 57
Issue 4
Start page 804
End page 874
Total pages 71
Place of publication Kidlington, Oxford, United Kingdom
Publisher Pergamon
Collection year 2013
Language eng
Abstract Solid-oxide fuel cells (SOFCs) technology has a substantial potential in the application of clean and efficient electric power generation. However, the widespread utilization of SOFCs has not been realized because the cost associated with cell fabrication, materials and maintenance is still too high. To increase its competitiveness, lowering the operation temperature to the intermediate range of around 500–800 °C is one of the main goals in current SOFCs research. A major challenge is the development of cell materials with acceptably low ohmic and polarization losses to maintain sufficiently high electrochemical activity at reduced temperatures. During the past few decades, tremendous progress has been made in the development of cell materials and stack design, which have been recently reviewed. SOFCs are fabricated from ceramic or cermet powders. The performances of SOFCs are also closely related to the ways in which the cell materials are processed. Therefore, the optimization of synthetic processes for such materials is of great importance. The conventional solid-phase reaction method of synthesizing SOFCs materials requires high calcination and sintering temperatures, which worsen their microstructure, consequently, their electrochemical properties. Various wet chemical routes have recently been developed to synthesize submicro- to nano-sized oxide powders. This paper provides a comprehensive review on the advanced synthesis of materials for intermediate-temperature SOFCs and their impact on fuel cell performance. Combustion, co-precipitation, hydrothermal, sol–gel and polymeric-complexing processes are thoroughly reviewed. In addition, the parameters relevant to each synthesis process are compared and discussed. The effect of different processes on the electrochemical performance of the materials is evaluated and optimization of the synthesis processes is discussed and some emerging synthetic techniques are also briefly presented.
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Available online 24 August 2011

Document type: Journal Article
Sub-type: Critical review of research, literature review, critical commentary
Collections: School of Chemical Engineering Publications
Official 2013 Collection
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Citation counts: TR Web of Science Citation Count  Cited 124 times in Thomson Reuters Web of Science Article | Citations
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