Abstract
It has been investigated that 13 CH 4 reacts with ethylene over metal cations such as indium cations-loaded H-ZSM-5 to form singly 13 C -labeled propylene ( 13 C 12 C 2 H 6 ) and hydrogen at 673 K. The heterolytic dissociation of CH bond in methane presumably proceeds by the reaction of methane with metal cations for the formation of CH 3 δ+ and metal hydride species, thus allowing the reaction of CH 3 δ+ with ethylene to form propylene and acidic protons. Metal cations are regenerated by the reaction of silver-hydride species with acidic protons, and hydrogen is simultaneously formed. Thus, bifunctionality of metal cations and acidic protons is essential for the activation of methane.
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