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A redox-reversible A/B-site co-doped BaFeO 3 electrode for direct hydrocarbon solid oxide fuel cells
A redox-reversible BLFMN material demonstrates good performance and coking resistance as the fuel electrode in SOFCs.
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- Award ID(s):
- 1832809
- PAR ID:
- 10537486
- Publisher / Repository:
- The Royal Society of Chemistry
- Date Published:
- Journal Name:
- Journal of Materials Chemistry A
- Volume:
- 12
- Issue:
- 23
- ISSN:
- 2050-7488
- Page Range / eLocation ID:
- 14087 to 14098
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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Abstract We report on the structure and dielectric properties of ternary A6B2O17(A = Zr; B = Nb, Ta) thin films and ceramics. Thin films are produced via sputter deposition from dense, phase‐homogenous bulk ceramic targets, which are synthesized through a reactive sintering process at 1500°C. Crystal structure, microstructure, chemistry, and dielectric properties are characterized by X‐ray diffraction and reflectivity, atomic force microscopy, X‐ray photoelectron spectroscopy, and capacitance analysis, respectively. We observe relative permittivities approaching 60 and loss tangents <1 × 10−2across the 103–105 Hz frequency range in the Zr6Nb2O17and Zr6Ta2O17phases. These observations create an opportunity space for this novel class of disordered oxide electroceramics.more » « less
