Journal
ENERGY SCIENCE & ENGINEERING
Volume 9, Issue 7, Pages 984-1011Publisher
WILEY
DOI: 10.1002/ese3.886
Keywords
energy devices; energy materials; proton conductors; protonic ceramic fuel cells
Categories
Funding
- National Science Foundation [CMMI-1661699]
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Solid oxide fuel cells operating at low temperatures (300-600 degrees C) have advantages for stationary and mobile electricity production, with proton-conducting oxides playing a critical role. Progress in proton-conducting solid oxide electrolytes for low-temperature SOFCs has been summarized, focusing on strategies to tune the structures and properties of proton-conducting oxides, techniques for improving performance of protonic ceramic-based SOFCs, and challenges and opportunities in the development of proton-conducting electrolyte-based PCFCs.
Among various types of alternative energy devices, solid oxide fuel cells (SOFCs) operating at low temperatures (300-600 degrees C) show the advantages for both stationary and mobile electricity production. Proton-conducting oxides as electrolyte materials play a critical role in the low-temperature SOFCs (LT-SOFCs). This review summarizes progress in proton-conducting solid oxide electrolytes for LT-SOFCs from materials to devices, with emphases on (1) strategies that have been proposed to tune the structures and properties of proton-conducting oxides and ceramics, (2) techniques that have been employed for improving the performance of the protonic ceramic-based SOFCs (known as PCFCs), and (3) challenges and opportunities in the development of proton-conducting electrolyte-based PCFCs.
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