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Issue 42, 2018
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Controlled synthesis of hierarchical ZSM-5 for catalytic fast pyrolysis of cellulose to aromatics

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Abstract

Zeolite materials play a significant role throughout the oil refining and petrochemical industry. Microporous ZSM-5 has a high degree of crystallinity but low mass transfer, while hierarchical ZSM-5 shows a low degree of crystallinity as well as 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. This not only improved the mass transfer in microporosity but also overcame disadvantages of hierarchical ZSM-5 including low degrees 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 verified 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.

Graphical abstract: Controlled synthesis of hierarchical ZSM-5 for catalytic fast pyrolysis of cellulose to aromatics

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Publication details

The article was received on 13 Sep 2018, accepted on 06 Oct 2018 and first published on 08 Oct 2018


Article type: Paper
DOI: 10.1039/C8TA08930B
Citation: J. Mater. Chem. A, 2018,6, 21178-21185
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    Controlled 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, 6, 21178
    DOI: 10.1039/C8TA08930B

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