Paper
RSC Advances
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59
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5087.
1
7 P. Veerakumara, M. Velayudhamb, K. L. Lub and
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Conclusion
1
1
In conclusion, as a hierarchical zeolite, mZSM-5 was success-
fully synthesized using KIT-6 as a mesoporous silica source,
modied with Ni nanoparticles and exhibited good catalytic
performance in reduction of nitro aromatic compounds at room
temperature in an aqueous media.
2
2
013, 32, 92.
2
1 R. J. Kalbasi, N. Mosaddegh and A. Abbaspourrad, Appl.
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N
2
adsorption–desorption isotherms showed that Ni/mZSM-
5
has a mesoporous-microporous structure. The existence of the
2
mesopores in the zeolite structure accelerates the molecular
transportation and also causes high accessibility of acid sites of
the zeolite. These features increase the activity/stability of the
catalyst. A comparison between Ni/mZSM-5 and Ni/H-mZSM-5
showed superior activities of Ni/H-mZSM-5 catalyst, which is
possibly due to the existence of more acidic sites in the Ni/H-
mZSM-5 structure rather than Ni/mZSM-5. Additionally, upon
the completion of the reactions, the catalysts could be removed
from the reaction medium easily and reused for several cycles
without any signicant decrease in the catalytic activity/
stability. These unique features open new perspectives for the
application of these types of hierarchical zeolites in other
organic reactions instead of using traditional zeolites.
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