Citation: Yong LU, Chang Chun YU, Jin Zhen XUE, Yu LIU, Xue Jia DING, Shi Kong SHEN. Studies on the Reaction Mechanism of CO₂-Reforming of Methane over Co/γ-Al₂O₃ Catalyst[J]. Chinese Chemical Letters, ;1997, 8(2): 121-124. shu

Studies on the Reaction Mechanism of CO₂-Reforming of Methane over Co/γ-Al₂O₃ Catalyst

State Key Laboratory of Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000

Received Date: 26 August 1996

TPPR and XPS characterizations were combined to study the reaction mechanism of CO₂-reforming of methane to syngas over Co/γ-Al₂O₃ catalysts.CH₄ shows a tendency to form surface carbons by deep dissociation at high temperatures.CO₂ dissociation reaction also occurs at >673K.It is believed that carbide carbons are active species to generate CO by reacting with O atoms dissociated from CO₂.In the reaction,Co⁽⁰⁾ particles are responsible for dissociating CH₄ to form active C.abstracting an O atom from CO₂ molecule,and transferring O atom to C to form CO.
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