Co/CeO2, Ni/CeO2 and Co-Ni/CeO2 catalysts were prepared by surfactant assisted co-precipitation method. Samples were characterized by X-Ray diffraction, BET surface areas measurements, temperature programmed reduction and tested for the dry reforming of methane CH4 + CO2 --> 2CO + 2H2. The bimetallic Co-Ni/CeO2 catalyst showed higher CH4 conversion in comparison with monometallic systems in the whole temperature range, being 50% at 600 °C and 97% at 800 °C. Ni/CeO2 After 20 hours under stream at 750 °C, cobalt-containing catalysts, Co/CeO2 and Co-Ni/CeO2, showed a stable operation in presence of a deposited amorphous carbon of 6 wt.%, whereas Ni/CeO2 showed an 8% decrease of catalytic activity due to a massive presence of amorphous and graphitic carbon (25 wt.%).

Luisetto, I., Tuti, S., Di Bartolomeo, E. (2012). Co and Ni supported on CeO2 as selective bimetallic catalyst for dry reforming of methane. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 37, 15992-15999 [10.1016/j.ijhydene.2012.08.006].

Co and Ni supported on CeO2 as selective bimetallic catalyst for dry reforming of methane

LUISETTO, IGOR;TUTI, SIMONETTA
;
2012-01-01

Abstract

Co/CeO2, Ni/CeO2 and Co-Ni/CeO2 catalysts were prepared by surfactant assisted co-precipitation method. Samples were characterized by X-Ray diffraction, BET surface areas measurements, temperature programmed reduction and tested for the dry reforming of methane CH4 + CO2 --> 2CO + 2H2. The bimetallic Co-Ni/CeO2 catalyst showed higher CH4 conversion in comparison with monometallic systems in the whole temperature range, being 50% at 600 °C and 97% at 800 °C. Ni/CeO2 After 20 hours under stream at 750 °C, cobalt-containing catalysts, Co/CeO2 and Co-Ni/CeO2, showed a stable operation in presence of a deposited amorphous carbon of 6 wt.%, whereas Ni/CeO2 showed an 8% decrease of catalytic activity due to a massive presence of amorphous and graphitic carbon (25 wt.%).
2012
Luisetto, I., Tuti, S., Di Bartolomeo, E. (2012). Co and Ni supported on CeO2 as selective bimetallic catalyst for dry reforming of methane. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 37, 15992-15999 [10.1016/j.ijhydene.2012.08.006].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11590/141412
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