Flowerlike CeO(2) microspheres coated with Sr(2)Fe(1.5)Mo(0.5)O(x) nanoparticles for an advanced fuel cell

Flowerlike CeO(2) coated with Sr(2)Fe(1.5)Mo(0.5)O(x) (Sr-Fe-Mo-oxide) nanoparticles exhibits enhanced conductivity at low temperatures (300–600 (o)C), e.g. 0.12 S cm(−1) at 600 (o)C, this is comparable to pure ceria (0.1 S cm(−1) at 800 (o)C). Advanced single layer fuel cell was constructed using t...

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Detalles Bibliográficos
Autores principales: Liu, Yanyan, Tang, Yongfu, Ma, Zhaohui, Singh, Manish, He, Yunjuan, Dong, Wenjing, Sun, Chunwen, Zhu, Bin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2015
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4495617/
https://www.ncbi.nlm.nih.gov/pubmed/26154917
http://dx.doi.org/10.1038/srep11946
Descripción
Sumario:Flowerlike CeO(2) coated with Sr(2)Fe(1.5)Mo(0.5)O(x) (Sr-Fe-Mo-oxide) nanoparticles exhibits enhanced conductivity at low temperatures (300–600 (o)C), e.g. 0.12 S cm(−1) at 600 (o)C, this is comparable to pure ceria (0.1 S cm(−1) at 800 (o)C). Advanced single layer fuel cell was constructed using the flowerlike CeO(2)/Sr-Fe-Mo-oxide layer attached to a Ni-foam layer coated with the conducting transition metal oxide. Such fuel cell has yielded a peak power density of 802 mWcm(−2) at 550 (o)C. The mechanism of enhanced conductivity and cell performance were analyzed. These results provide a promising strategy for developing advanced low-temperature SOFCs.

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