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Received June 17, 2005
Accepted September 5, 2005
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Promotion effects of ceria in partial oxidation of methane over Ni-calcium hydroxyapatite
Department of Chemical Engineering, Sungkyunkwan University, Suwon 440-746, Korea 1Battery and Fuel Cell Research Center, Korea Institute of Science and Technology, Seoul 136-791, Korea
Korean Journal of Chemical Engineering, January 2006, 23(1), 17-20(4), 10.1007/BF02705686
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Abstract
Effects of ceria added as a promoter to a nickel-calcium hydroxyapatite catalyst, which has recently been reported to exhibit high activity and selectivity in partial oxidation of methane, were investigated. The ceria-promoted catalyst exhibited higher activity and stability than the unpromoted one. This is considered due to the oxygen storage capacity of ceria, which promotes easier removal of the deposited carbon. The optimum content of ceria was determined to lie in the range of the Ce/Ni ratio from 0.1/2.5 to 0.2/2.5.
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