Proton conducting solid oxide fuel cells with layered PrBa0.5Sr0.5Co2O5+δ perovskite cathode
Journal Article
·
· International Journal of Hydrogen Energy
- Univ. of South Carolina, Columbia, SC (United States)
BaZr0.1Ce0.7Y0.2O3-δ (BZCY7) exhibits adequate protonic conductivity as well as sufficient chemical and thermal stability over a wide range of SOFC operating conditions, while layered perovskite PrBa0.5Sr0.5Co2O5+δ (PBSC) has advanced electrochemical properties. This research fully takes advantage of these advanced properties and develops a novel protonic ceramic membrane fuel cell (PCMFC) of Ni–BZCY7|BZCY7|PBSC. Experimental results show that the cell may achieve the open-circuit potential of 1.005 V, the maximal power density of 520 mW cm-2, and a low electrode polarization resistance of 0.12 Ωcm2 at 700 °C. Increasing operating temperature leads to the decrease of total cell resistance, among which electrolyte resistance becomes increasingly dominant over polarization resistance. The results also indicate that PBSC perovskite cathode is a good candidate for intermediate temperature PCMFC development, while the developed Ni–BZCY7|BZCY7|PBSC cell is a promising functional material system for SOFCs.
- Research Organization:
- Energy Frontier Research Centers (EFRC); Heterogeneous Functional Materials Center (HeteroFoaM)
- Sponsoring Organization:
- USDOE SC Office of Basic Energy Sciences (SC-22)
- DOE Contract Number:
- SC0001061
- OSTI ID:
- 1064733
- Journal Information:
- International Journal of Hydrogen Energy, Journal Name: International Journal of Hydrogen Energy Journal Issue: 6 Vol. 35; ISSN 0360-3199
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
Similar Records
Layed Perovskite PRBA0.5SR0.5CO205 as High Performance Cathode for Solid Oxide Fuels Using Photon Conducting Electrolyte
A mixed-conducting BaPr0.8In0.2O3-δ cathode for proton-conducting solid oxide fuel cells
Structural, electrochemical and magnetic characterization of the layered-type PrBa{sub 0.5}Sr{sub 0.5}Co{sub 2}O{sub 5+δ} perovskite
Journal Article
·
Wed May 05 00:00:00 EDT 2010
· Journal of Power Sources
·
OSTI ID:978447
A mixed-conducting BaPr0.8In0.2O3-δ cathode for proton-conducting solid oxide fuel cells
Journal Article
·
Fri Nov 02 00:00:00 EDT 2012
· Electrochem. Commun.
·
OSTI ID:1105249
Structural, electrochemical and magnetic characterization of the layered-type PrBa{sub 0.5}Sr{sub 0.5}Co{sub 2}O{sub 5+δ} perovskite
Journal Article
·
Thu May 01 00:00:00 EDT 2014
· Journal of Solid State Chemistry
·
OSTI ID:22334231
Related Subjects
30 DIRECT ENERGY CONVERSION
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)
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)