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Fabrication of MTN-type zeolite by self-assembling of supramolecular compound by Aisheng Huang; Jürgen Caro is a Engineering article available to read on EtoBox.

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MTN-type (Zeolite Socony Mobil Thirty-Nine) zeolite was prepared at 473 K by a novel method through self-assembling of a supramolecular compound called 2,4,6-tris (4-pyridyl) triazine (TPT) in DMF (N,Ndimethylformamide). The effects of fluoride, DMF and germanium on the synthesis of MTN-type zeolite were investigated. The crystallization was facilitated by adding fluoride to the synthesis solution, resulting in the formation of highly crystalline MTN samples, while some amorphous phase was observed in fluoride-free batches. DMF was required to obtain a highly crystalline MTN sample, since TPT dissolves easier in DMF than in water, thus facilitating the self-assembling of TPT into a 3D network to structure the MTN framework. The MTN structure could be synthesized at low germanium content (Ge/Si r 0.18), while AST (AlPO 4 -sixteen) as a foreign phase is formed at high germanium substitution (Ge/Si Z 0.5).

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Author

Aisheng Huang; Jürgen Caro

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0022-0248)

Published

2009

Language

EN

Field

Engineering (Physical Sciences)