4.8 Article

In situ fabrication of CoFe alloy nanoparticles structured (Pr0.4Sr0.6)(3)(Fe0.85Nb0.15)(2)O-7 ceramic anode for direct hydrocarbon solid oxide fuel cells

Journal

NANO ENERGY
Volume 11, Issue -, Pages 704-710

Publisher

ELSEVIER SCIENCE BV
DOI: 10.1016/j.nanoen.2014.12.001

Keywords

CoFe alloy; Nanoparticles; Ruddlesden-Popper; Ceramic anode; Hydrocarbon fuel

Funding

  1. National Natural Science Foundation of China [51402109]
  2. Guangdong Natural Science Foundation [S2013010014883]
  3. Scientific Research Foundation for the Returned Scholars, Ministry of Education of China [(2013)1792]
  4. Fundamental Research Funds for Central Universities, China [2013ZM051]
  5. U.S. National Science Foundation [DMR-1210792]
  6. Division Of Materials Research [1210792] Funding Source: National Science Foundation

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Ni-free solid oxide fuel cell ceramic anode consisting of Ruddlesden-Popper type layered perovskite (Pr0.4Sr0.6)(3)(Fe0.85Nb0.15)(2)O-7 (RP-PSFN) matrix with homogenously dispersed CoFe bi-metallic alloy (CFA) nanoparticles has been fabricated by in situ annealing the porous perovskite Pr0.4Sr0.6 Co0.2Fe0.7Nb0.1O3-delta membrane in H-2 at 900 degrees C. The RP-PCFN-CFA ceramic anode has demonstrated a similar catalytic activity to Ni-based ceramic anode. La0.8Sr0.2Ga0.83Mg0,17O3-delta electrolyte supported SOFC single cell with RP-PSFN-CFA anode generates maximum power outputs of 0.59 and 0.92 W cm(-2) in wet C3H8 (3 vol% H2O) at 800 and 850 degrees C, respectively. Moreover, the single cell shows a stable power output under a constant current load of 0.40 A cm(-2) in wet C3H8 at 800 degrees C, indicating an excellent coking resistance. (C) 2014 Elsevier Ltd. All rights reserved.

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