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BaZr0.1Ce0.7Y0.1Yb0.1O3-δ electrolyte-based solid oxide fuel cells with cobalt-free PrBaFe2O5+δ layered perovskite cathode

Ding, Hanping ; Xue, Xingjian

Journal of power sources, 2010-10, Vol.195 (20), p.7038-7041 [Periódico revisado por pares]

Amsterdam: Elsevier

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Título:
BaZr0.1Ce0.7Y0.1Yb0.1O3-δ electrolyte-based solid oxide fuel cells with cobalt-free PrBaFe2O5+δ layered perovskite cathode
Autor: Ding, Hanping ; Xue, Xingjian
Assuntos: 01 COAL, LIGNITE, AND PEAT ; 30 DIRECT ENERGY CONVERSION ; Applied sciences ; carbon sequestration ; catalysis (heterogeneous) ; charge transport ; Direct energy conversion and energy accumulation ; Electrical engineering. Electrical power engineering ; Electrical power engineering ; Electrochemical conversion: primary and secondary batteries, fuel cells ; Energy ; energy storage (including batteries and capacitors) ; Energy. Thermal use of fuels ; Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc ; Exact sciences and technology ; Fuel cells ; hydrogen and fuel cells ; materials and chemistry by design ; mechanical behavior ; membrane ; synthesis (novel materials) ; synthesis (scalable processing) ; synthesis (self-assembly)
É parte de: Journal of power sources, 2010-10, Vol.195 (20), p.7038-7041
Notas: USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
SC0001061
Descrição: A new anode-supported SOFC material system Ni-BZCYYb|BZCYYb|PBFO is investigated, in which a cobalt-free layered perovskite oxide, PrBaFe2O5+δ (PBFO), is synthesized and employed as a novel cathode while the synthesized BZCYYb is used as an electrolyte. The cell is fabricated by a simple dry-pressing/co-sintering process. The cell is tested and characterized under intermediate temperature range from 600 to 700 °C with humified H2 (~3% H2O) as fuel, ambient air as oxidant. The results show that the open-circuit potential of 1.006 V and maximal power density of 452 mW cm-2 are achieved at 700 °C. The polarization resistance of the electrodes is 0.18 Ω cm2 at 700 °C. Compared to BaZr0.1Ce0.7Y0.1O3-δ, the conductivity of co-doped barium zirconate–cerate BZCYYb is significantly improved. The ohmic resistance of single cell is 0.37 Ω cm2 at 700 °C. The results indicate that the developed Ni-BZCYYb|BZCYYb|PBFO cell is a promising functional material system for SOFCs.
Editor: Amsterdam: Elsevier
Idioma: Inglês

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BaZr0.1Ce0.7Y0.1Yb0.1O3-δ electrolyte-based solid oxide fuel cells with cobalt-free PrBaFe2O5+δ layered perovskite cathode

Ding, Hanping ; Xue, Xingjian

Amsterdam: Elsevier

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