Tracer diffusion in oxides in an oxygen potential gradient
โ Scribed by M. Martin
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- English
- Weight
- 780 KB
- Volume
- 32-33
- Category
- Article
- ISSN
- 0167-2738
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๐ SIMILAR VOLUMES
Tracer diffusion of "0 in dense, polycrystalline La, \_,Sr,CoO, for x = 0.1 has been measured in the temperature range 400 to 600ยฐC and at 500ยฐC for x = 0.2 at an oxygen partial pressure of 1 X lo5 Pa. Depth profiles were obtained by secondary ion mass spectrometry. The diffusion coefficient for La,
Numerous studies have been conducted in recent years on the partial oxidation of methane to synthesis gas (syngas: CO 1 H ) with air as the oxidant. In partial oxidation, a mixed-oxide ceramic membrane selectively transports oxygen from 2 the air; this transport is driven by the oxygen potential gra