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

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.%).
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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