Soluble starch as in-situ template to synthesize ZSM-5 zeolite with intracrystal mesopores

被引：16
|
作者：
Zhang, Miaorong [1 ]
Liu, Xinmei [1 ]
Yan, Zifeng [1 ]
机构：
[1] China Univ Petr, Key Lab Catalysis, State Key Lab Heavy Oil Proc, CNPC, Qingdao 266580, Peoples R China
来源：
MATERIALS LETTERS | 2016年 / 164卷
关键词：
Porous materials; Nanoparticles; Mesoporous ZSM-5; Hard template; SINGLE-CRYSTALS; CARBON; COMPOSITES;
D O I：
10.1016/j.matlet.2015.10.044
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
ZSM-5 zeolite with intracrystal mesopores was synthesized via soluble starch as in-situ template. The pore structure of the samples is demonstrated by N-2 adsorption, XRD, SEM and TEM techniques. The results show that the intracrystal mesopores are ascribed to the carbonized starch encapsulated in the ZSM-5 mesophase. The carbonized starch was removed through calcination, and then unordered mesopores are exposed. While the mesopores are unordered and the mesopore diameter is not uniform due to the different size of the assembling carbonized starch among ZSM-5 mesophase. Of note is that the mesopores exhibit good thermal and hydrothermal stability. The mesopore volume of the ZSM-5 treated at 800 degrees C with flow of stream is almost unchanged compared to the untreated samples. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：543 / 546
页数：4
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