Abstract
Conventional supported Pt catalysts for the industrially catalytic reforming present high conversion but low selectivity due to hydrogenolysis reaction. The development of highly dispersed Pt provides the opportunities to solve this problem. In this article, supported Pt catalyst with Pt dispersed in single atoms (68%) on GaIII-containing mixed metal oxides was prepared through the inducement effect of Ga confined in the lattices of brucite-like layers of layered double hydroxides (LDHs). Applied in the n -heptane reforming reaction, highly-dispersed Pt effectively inhibited the hydrogenolysis reaction and aromatization, and significantly improved the selectivity to i -C7 product. At a stable n -heptane conversion of 50%, an i -C7 selectivity of 53% could be obtained with a C1--4 by-product selectivity lower than 20%.
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