ZSM-5纳米薄片定向堆积合成分子筛团聚体

doi:10.19964/j.issn.1006-4990.2021-0278

Abstract

Abstract:

A new synthetic method of nanocrystalline silicate-1（S-2） was developed.Compared with the conventional sili-cate-1（S-1）,S-2 had smaller particle size and smooth crystal surface.When S-2 was used as seed crystal to synthesize nano-ZSM-5 aggregates,the ZSM-5 aggregates were monodisperse particles with size of 0.8~1.0 μm,which were composed by the ZSM-5 crystals with the b-axis thickness of 60~80 nm.The ZSM-5 nanosheets were regularly stacked along the b-axis forming a unique pore structure,including a uniform pore size distribution with an average size of 1.3 nm and a wide pore size distribution of 25 nm.

Key words: ZSM-5 aggregates, seed, hierarchical pore, nanosheet

CLC Number:

TQ424.25

LI Xiaoguo,MI Xiaotong,CAO Hui,CHANG Yang,ZHANG Yongkun,LI Yongheng. Synthesis of ZSM-5 aggregates assembled by oriented stacking nanosheets[J]. Inorganic Chemicals Industry, 2022, 54(1): 112-116.

Figures/Tables 8

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Table 1

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Table 2

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References 19

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样品	相对结晶度/%	样品	相对结晶度/%
S-1-1	81	S-2-1	84
S-1-2	90	S-2-2	92
S-1-3	97	S-2-3	100

样品	S_BET/ （m²·g^-1）	S_micro / （m²·g^-1）	S_ext/ （m²·g^-1）	V_total/ （cm³·g^-1）	V_micro/ （cm³·g^-1）	V_ext / （cm³·g^-1）
S-1-1	323	278	45	0.20	0.11	0.09
S-1-2	289	257	32	0.16	0.10	0.06
S-1-3	293	265	28	0.15	0.10	0.05
S-2-1	329	279	50	0.27	0.11	0.16
S-2-2	315	273	42	0.23	0.11	0.12
S-2-3	296	264	32	0.18	0.10	0.08

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Inorganic Acid-Base-Salt Committee of CIESC

Synthesis of ZSM-5 aggregates assembled by oriented stacking nanosheets

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