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An intermediate-temperature solid oxide fuel cell with electrospun nanofiber cathode

Journal Article · · Energy & Environmental Science
DOI:https://doi.org/10.1039/c2ee02619h· OSTI ID:1081560
 [1];  [2];  [3];  [4];  [1]
  1. National Energy Technology Lab. (NETL), Morgantown, WV (United States); West Virginia Univ., Morgantown, WV (United States)
  2. National Energy Technology Lab. (NETL), Morgantown, WV (United States)
  3. National Energy Technology Lab. (NETL), Morgantown, WV (United States); URS Corporation, Morgantown, WV (United States)
  4. Inst. of Energy and Climate Research, Julich (Germany)
+ Show Author Affiliations
Lanthanum strontium cobalt ferrite (LSCF) nanofibers have been fabricated by the electrospinning method and used as the cathode of an intermediate-temperature solid oxide fuel cell (SOFC) with yttria-stabilized zirconia (YSZ) electrolyte. The three-dimensional nanofiber network cathode has several advantages: (i) high porosity; (ii) high percolation; (iii) continuous pathway for charge transport; (iv) good thermal stability at the operating temperature; and (v) excellent scaffold for infiltration. The fuel cell with the monolithic LSCF nanofiber cathode exhibits a power density of 0.90 W cm-2 at 1.9 A cm-2 at 750 °C. The electrochemical performance of the fuel cell has been further improved by infiltration of 20 wt% of gadolinia-doped ceria (GDC) into the LSCF nanofiber cathode. The fuel cell with the LSCF–20% GDC composite cathode shows a power density of 1.07 W cm-2 at 1.9 A cm-2 at 750 °C. The results obtained show that one-dimensional nanostructures such as nanofibers hold great promise as electrode materials for intermediate-temperature SOFCs.
Research Organization:
National Energy Technology Lab. (NETL), Morgantown, WV (United States)
Sponsoring Organization:
USDOE Office of Fossil Energy (FE)
DOE Contract Number:
FE0004000
OSTI ID:
1081560
Report Number(s):
TPR--3704
Journal Information:
Energy & Environmental Science, Journal Name: Energy & Environmental Science Journal Issue: 5 Vol. 5; ISSN EESNBY; ISSN 1754-5692
Publisher:
Royal Society of Chemistry
Country of Publication:
United States
Language:
English

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