Zhou, Wei Liu, Jiaxu Lin, Long Zhang, Xiaotong He, Ning Liu, Chunyan Guo, Hongchen Enhanced Dehydrogenative Aromatization of Propane by Incorporating Fe and Pt into the Zn/HZSM‑5 Catalyst In this study, an attempt was made to modify the Zn/HZSM-5 aromatization catalyst by successively impregnating Fe and Pt. Multitechniques including NH<sub>3</sub> adsorption FT-IR, TEM, HAADF-STEM, XPS, and <i>operando</i> dual beam FT-IR spectroscopy of propane aromatization were employed to investigate the interactions among Zn, Fe, and Pt and the synergetic catalysis among the Brønsted acid sites, Lewis acid sites, and metallic sites of the ZnFePt/HZSM-5 catalyst. Results show that an optimized trimetallic Zn<sub>1.0</sub>Fe<sub>0.3</sub>Pt<sub>0.1</sub>/HZSM-5 catalyst has much lower dry gas production and significantly enhanced propane transformation activity and aromatization selectivity compared with the parent Zn/HZSM-5. The excellent performance of the trimetallic catalyst could be attributed to the high dispersion of metals, the formation of FePt bimetallic dehydrogenation active sites, and the promotion effect of FePt sites for the recombinational desorption of H atoms for the [ZnOZn]<sup>2+</sup> sites. The fixed-bed reaction indicates that the trimetallic Zn<sub>1.0</sub>Fe<sub>0.3</sub>Pt<sub>0.1</sub>/HZSM-5 catalyst also has excellent durability which is desirable for practical use. gas production;Incorporating Fe;HAADF-STEM;trimetallic catalyst;XPS;HZSM;Results show;H atoms;beam FT-IR spectroscopy;impregnating Fe;Zn;fixed-bed reaction;promotion effect;FePt bimetallic dehydrogenation;TEM;recombinational desorption;Enhanced Dehydrogenative Aromatization;NH 3 adsorption FT-IR;FePt sites;Lewis acid sites;propane aromatization;Br ønsted acid sites;synergetic catalysis;aromatization selectivity;propane transformation activity 2018-10-29
    https://acs.figshare.com/articles/journal_contribution/Enhanced_Dehydrogenative_Aromatization_of_Propane_by_Incorporating_Fe_and_Pt_into_the_Zn_HZSM_5_Catalyst/7346441
10.1021/acs.iecr.8b03865.s001