Fig. 1: A proposed elementary reaction pathway for activating C-H bond and coupling of C-C bond in MDA reaction. | Nature Communications

Fig. 1: A proposed elementary reaction pathway for activating C-H bond and coupling of C-C bond in MDA reaction.

From: Direct conversion of methane to aromatics and hydrogen via a heterogeneous trimetallic synergistic catalyst

Fig. 1

A–C–D route (in the interior surface of zeolite cage): The reactions occur in the pores of zeolite where Mo species are located. The methane dehydrogenation and C2 coupling are accomplished via molybdenum, and the subsequent oligomerization of C2 intermediates is completed by BASs. A–B–D route (on zeolite external surface): The activation of C-H bond occurs on the Mo2C at surface to form CH3* which transfers to the Pt-Bi alloy for C-C coupling and then for oligomerization reaction on BASs. Color scheme: Mo (green), C (black), Bi (purple), Si (yellow), Al (Dark blue), H (light blue), O (red) and Pt (white).

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