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Control Synthesis of Hierarchical ZSM–5 for Catalytic Fast Pyrolysis of Cellulose to Aromatics

Abstract

Zeolite materials play a significant role throughout the oil refining and petrochemical industry. The microporous ZSM-5 with high degree of crystallinity but low mass transfer, while hierarchical ZSM-5 showed low degree of crystallinity as well as the acidity. In this work, we first report the synthesis of ZSM–5 with a new morphological structure, which has nanocrystalline ZSM–5 particles on the surface of an intact ZSM–5 zeolite not only improved the mass transfer of microporosity but also overcame the disadvantage of hierarchical ZSM-5 that low degree of crystallinity and acidity. This new and very efficient structure with both intracrystal microporosity and intercrystal macroporosity, formed by secondary crystallization after the intact ZSM–5 zeolite was synthesized, was demonstrated by transmission electronic microscopy, N2 adsorption and desorption and X–ray diffraction. The obtained ZSM–5 zeolite showed a uniform size (~200 nm), high crystallinity acidity, and a suitable hierarchical structure that exhibited excellent properties in the catalytic fast pyrolysis of cellulose to produce aromatics.

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Publication details

The article was accepted on 06 Oct 2018 and first published on 08 Oct 2018


Article type: Paper
DOI: 10.1039/C8TA08930B
Citation: J. Mater. Chem. A, 2018, Accepted Manuscript
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    Control Synthesis of Hierarchical ZSM–5 for Catalytic Fast Pyrolysis of Cellulose to Aromatics

    H. Chen, X. Shi, J. Liu, K. Jie, Z. Zhang, X. Hu, Y. Zhu, X. Lu, J. Fu, H. Huang and S. Dai, J. Mater. Chem. A, 2018, Accepted Manuscript , DOI: 10.1039/C8TA08930B

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