The AC monitoring of a mixed conducting Li-Ni-Co-O catalyst during temperature programmed reactions
Autor: | J. R. Walls, D. Qin, A. Ovenston |
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Rok vydání: | 1996 |
Předmět: | |
Zdroj: | Ionics. 2:123-131 |
ISSN: | 1862-0760 0947-7047 |
DOI: | 10.1007/bf02375805 |
Popis: | The temporal analysis of effluent species with temperature linearly increasing with time for two reactions, carbon dioxide hydrogenation (250° to 600°C) and the oxidative coupling of methane (400° to 800°C) have been studied. A non-stoichiometric, mixed-oxide catalyst, Li0.9Ni0.5Co0.5O2-δ, containing both mobile ions and electrons at elevated temperatures was investigated. The exit gas stream was monitored by using the multiple-ion monitoring facility of a quadrupole mass spectrometer. The AC electrical characteristics of the catalyst pellet between 100 Hz and 1 MHz were simultaneously monitored in-situ. |
Databáze: | OpenAIRE |
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