A robust NiO-Sm0.2Ce0.8O1.9 anode for direct-methane solid oxide fuel cell
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Type
ArticleKAUST Department
Physical Science and Engineering (PSE) DivisionDate
2015-07-04Online Publication Date
2015-07-04Print Publication Date
2015-11Permanent link to this record
http://hdl.handle.net/10754/559099
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In order to directly use methane without a reforming process, NiO-Sm0.2Ce0.8O1.9 (NiO-SDC) nanocomposite anode are successfully synthesized via a one-pot, surfactant-assisted co-assembly approach for direct-methane solid oxide fuel cells. Both NiO with cubic phase and SDC with fluorite phase are obtained at 550 °C. Both NiO nanoparticles and SDC nanoparticles are highly monodispersed in size with nearly spherical shapes. Based on the as-synthesized NiO-SDC, two kinds of single cells with different micro/macro-porous structure are successfully fabricated. As a result, the cell performance was improved by 40%-45% with the new double-pore NiO-SDC anode relative to the cell performance with the conventional NiO-SDC anode due to a wider triple-phase-boundary (TPB) area. In addition, no significant degradation of the cell performance was observed after 60 hours, which means an increasing of long term stability. Therefore, the as-synthesized NiO-SDC nanocomposite is a promising anode for direct-methane solid oxide fuel cells.Citation
A robust NiO-Sm0.2Ce0.8O1.9 anode for direct-methane solid oxide fuel cell 2015 Materials Research BulletinPublisher
Elsevier BVJournal
Materials Research BulletinAdditional Links
http://linkinghub.elsevier.com/retrieve/pii/S0025540815300027ae974a485f413a2113503eed53cd6c53
10.1016/j.materresbull.2015.06.042