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Intermediate temper...
Intermediate temperature fuel cells based on doped ceria-LiCl-SrCl2 composite electrolyte
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Fu, Q. X. (författare)
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Zha, S. W. (författare)
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Zhang, W. (författare)
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Peng, D. K. (författare)
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Meng, G. Y. (författare)
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- Zhu, Bin (författare)
- KTH,Kemiteknik
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(creator_code:org_t)
- 2002
- 2002
- Engelska.
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Ingår i: Journal of Power Sources. - 0378-7753 .- 1873-2755. ; 104:1, s. 73-78
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- A new type of oxide-salt composite electrolyte, gadolinium-doped ceria (GDC)-LiCl-SrCl2, was developed and demonstrated its promising use for intermediate temperature (400-700 degreesC) fuel cells (ITFCs). The dc electrical conductivity of this composite electrolyte (0.09-0.13 S cm(-1) at 500-650 degreesC) was 3-10 times higher than that of the pure GDC electrolyte, indicating remarkable proton or oxygen ion conduction existing in the LiCl-SrCl2 chloride salts or at the interface between GDC and the chloride salts. Using this composite electrolyte, peak power densities of 260 and 510 mW cm(-2), with current densities of 650 and 1250 mA cm(-2) were achieved at 550 and 625 degreesC, respectively. This makes the new material a good candidate electrolyte for future low-cost ITFCs.
Nyckelord
- GDC-LiCl-SrCl2
- composite electrolyte
- intermediate temperature fuel cells
- electrical conductivity
- solid electrolytes
- conduction
- proton
- operation
- li2so4
- nacl
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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