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Synthesis and chara...
Synthesis and characterization of nanostructured Bi2O3-doped cerium oxides fabricated by PVA polymerization process
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Li, Z. C. (författare)
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Zhang, H. (författare)
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- Bergman, Bill (författare)
- KTH,Keramteknologi
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(creator_code:org_t)
- Elsevier BV, 2008
- 2008
- Engelska.
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Ingår i: Ceramics International. - : Elsevier BV. - 0272-8842 .- 1873-3956. ; 34:8, s. 1949-1953
- Relaterad länk:
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https://urn.kb.se/re...
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visa fler...
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https://doi.org/10.1...
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visa färre...
Abstract
Ämnesord
Stäng
- Bi2O3-doped ceria oxygen-ion conductors were prepared by a wet chemical synthesis method, which is per-formed by polymerization of polyvinyl-alcohol (PVA). The experiments showed that Bi2O3-CeO2 solid solution with 9.2 nm grains and pure fluorite type phase can be synthesized at a calcination temperature of 500 degrees C by PVA polymerization process. X-ray analysis revealed that high density narrostructured bulks could be prepared at a sintering temperature of 900 degrees C, and these bulk samples with an average grain size less than 70 nm could effectively be obtained at various heating rates during sintering. Oxygen-ion conductivity increased with the increase of dopant concentrations between 5 mol% and 15 mol% in present study.
Nyckelord
- Ceria-based conductor
- Bi2O3 dopant
- Synthesis
- PVA polymerization
- process
- Conductivity
- ion conductor
- electrolyte
- fuel
- ceo2
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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