Volume 3, Issue 2, Pages 323-333 (August 2017) Direct Transformation of Syngas to Aromatics over Na-Zn-Fe5C2 and Hierarchical HZSM-5 Tandem Catalysts Bo Zhao, Peng Zhai, Pengfei Wang, Jiaqi Li, Teng Li, Mi Peng, Ming Zhao, Gang Hu, Yong Yang, Yong-Wang Li, Qianwen Zhang, Weibin Fan, Ding Ma Chem Volume 3, Issue 2, Pages 323-333 (August 2017) DOI: 10.1016/j.chempr.2017.06.017 Copyright © 2017 Terms and Conditions
Chem 2017 3, 323-333DOI: (10.1016/j.chempr.2017.06.017) Copyright © 2017 Terms and Conditions
Figure 1 The Structure of the Modified HZSM-5 (A) X-ray diffraction patterns of modified HZSM-5. (B) N2 adsorption-desorption isotherms for modified HZSM-5. (C) Pore-size distributions of HZSM-5 derived from the N2 adsorption-desorption isotherms by the BJH method. The number before HZSM-5 represents the NaOH concentration of the solution that treated HZSM-5. (D) TEM micrograph of the HZSM-5. The scale bar represents 50 nm. (E) TEM micrograph of 0.6-HZSM-5. The scale bar represents 50 nm. Chem 2017 3, 323-333DOI: (10.1016/j.chempr.2017.06.017) Copyright © 2017 Terms and Conditions
Figure 2 The Acidity and Framework Structure of Modified ZSM-5 (A) 27Al MAS NMR spectra. (B) 1H MAS NMR spectra. (C) NH3-TPD profiles for HZSM-5 prepared with different concentrations of NaOH or different ion-exchange times. (D) 27Al MQ MAS NMR spectra of HZSM-5. (E) 27Al MQ MAS NMR spectra of 0.6-HZSM-5. Chem 2017 3, 323-333DOI: (10.1016/j.chempr.2017.06.017) Copyright © 2017 Terms and Conditions
Figure 3 Comparison of Product Distribution over FeZnNa and FeZnNa@0.6-ZSM-5-a with All the Carbon-Containing Products Counted Reaction conditions: 20 mg FeZnNa, 20 mg FeZnNa + 100 mg 0.6-ZSM-5-a, CO/H2/CO2/Ar = 24:64:8:4, 613 K, 20 bar, total flow rate = 20 mL/min, time on stream = 40 hr. Catalyst was treated in 5% H2/N2 at 623 K for 2 hr before the reaction. Chem 2017 3, 323-333DOI: (10.1016/j.chempr.2017.06.017) Copyright © 2017 Terms and Conditions