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2664644 
Journal Article 
Effect of morphology and particle size of ZSM-5 on catalytic performance for ethylene conversion and heptane cracking 
Reddy, JK; Motokura, Ken; Koyama, Toru; Miyaji, A; Baba, T 
2012 
Yes 
Journal of Catalysis
ISSN: 0021-9517
EISSN: 1090-2694 
289 
53-61 
WOS:000303788800006 
To determine the effect of morphology and particle size of ZSM-5 (particle type ZSM-5) on catalytic performance (catalytic activity, product distribution, and catalyst lifetime), ZSM-5 with varying particle size and a ZSM-5 nanosheet were prepared to study the conversion of ethylene and cracking of n-heptane. The physicochemical properties were also investigated by X-ray powder diffraction, scanning electron microscopy, transmission electron microscopy, atomic force microscopy, Si-29 MAS, and Al-27 3Q MAS nuclear magnetic resonance.



The rate of ethylene conversion was found to increase with decreasing ZSM-5 zeolite particle size, while the product distribution was independent of the particle size and morphology of the catalyst. In n-heptane cracking, the ZSM-5 nanosheet showed lower catalytic activity than particulate ZSM-5, and the distribution of hydrocarbon products was independent of the morphology of ZSM-5. In both reactions, the effects of morphology and particle size on catalytic performance will be discussed. (C) 2012 Elsevier Inc. All rights reserved. 
Nanosheet ZSM-5; Particle size; Ethylene conversion; Heptane cracking