The AC monitoring of a mixed conducting Li-Ni-Co-O catalyst during temperature programmed reactions

Autor: J. R. Walls, D. Qin, A. Ovenston
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