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Digitale Medien

Stability of SrZr0.9Yb0.1O3−α protonic conductor in atmosphere containing nitrogen oxides (NOx) (2000)

Kobayashi, T. ; Morishita, S. ; Honma, T. ; [weitere]

Springer

Journal of materials science 35 (2000), S. 5283-5289

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Details

ISSN: 1573-4803

Quelle: Springer Online Journal Archives 1860-2000

Thema: Maschinenbau

Notizen: Abstract The stability of the SrZr0.9Yb0.1O3−α protonic conductor in an atmosphere containing nitrogen oxides (NO x ) was investigated. When a fine powder of SrZr0.9Yb0.1O3−α with a specific surface area of about 50 m2/g was annealed at 440 °C in He gas containing 8% O2 and 0.1% NO, the formation of Sr(NO3)2 was observed by IR measurement, ion-chromatography analysis and ICP analysis. The formation mechanism of Sr(NO3)2 was examined by considering the thermodynamic equilibrium. Based on the results of the thermodynamic calculation, H2O dissolved into SrZr0.9Yb0.1O3−α was estimated to play an important role in the reaction for the formation of Sr(NO3)2 between SrZr0.9Yb0.1O3−α and NO x .

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1023/A:1004878308597

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