Anode-supported tubular SOFCs based on BaZr_0.1Ce_0.7Y_0.1Yb_0.1O_3-δ electrolyte fabricated by dip coating

Journal Article · Wed Jun 01 04:00:00 EDT 2011 · Electrochemistry Communications

DOI:https://doi.org/10.1016/j.elecom.2011.03.025· OSTI ID:1380482

Chen, Changcheng; Liu, Mingfei; Bai, Yaohui; Yang, Lei; Xie, Erqing; Liu, Meilin

Anode-supported tubular solid oxide fuel cells (SOFCs) based on a proton and oxide ion mixed conductor, BaZr0.1Ce0.7Y0.1Yb0.1O3 - δ (BZCYYb), have been fabricated using a dip coating and co-firing process. This new fabrication technique effectively reduced the Ohmic resistances of tubular cells to ~ 0.1 and ~ 0.3 Ω cm2 at 750 and 600 °C, respectively. Typical tubular cells with Ni-BZCYYb anode, BZCYYb electrolyte, and La0.6Sr0.4Co0.2Fe0.8O3 - δ (LSCF)-BZCYYb composite cathode demonstrated much-improved performance, achieving peak power densities of 1.13, 0.81, 0.63, and 0.53 W cm- 2 at 750, 700, 650, and 600 °C, respectively, when humidified (3 v% water vapor) hydrogen was used as fuel and ambient air as oxidant.

• Research Organization: Energy Frontier Research Centers (EFRC) (United States). Heterogeneous Functional Materials Center (HeteroFoaM)
• Sponsoring Organization: USDOE SC Office of Basic Energy Sciences (SC-22)
• DOE Contract Number: SC0001061
• OSTI ID: 1380482
• Journal Information: Electrochemistry Communications, Journal Name: Electrochemistry Communications Journal Issue: 6 Vol. 13; ISSN 1388-2481
• Publisher: Elsevier
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
carbon sequestration
catalysis (heterogeneous)
charge transport
energy storage (including batteries and capacitors)
hydrogen and fuel cells
materials and chemistry by design
mechanical behavior
membrane
synthesis (novel materials)
synthesis (scalable processing)
synthesis (self-assembly)