论文成果
Synthesis of the nanosized MCM-22 zeolite and its catalytic performance in methane dehydro-aromatization reaction
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- 论文类型：期刊论文
- 发表时间：2014-01-05
- 发表刊物：CATALYSIS COMMUNICATIONS
- 收录刊物：SCIE、EI
- 文献类型：J
- 卷号：43
- 页面范围：218-222
- ISSN号：1566-7367
- 关键字：MCM-22 zeolite; Nanocrystals; Methane dehydro-aromatization;
Mo/HMCM-22-NZ; Durability of catalyst
- 摘要：A novel and facile synthesis method based on the combination of self-assembly and in-situ crystallization is developed for the preparation of nanosized MCM-22 zeolites (simplified as MCM-22-NZ hereafter) of about 40 nm, where the cationic polymer, PDDA, was added to play a role of protecting agent to avoid the synthesis colloids self-aggregation. MCM-22-NZ was characterized by XRD, TEM, DLS, NH3-TPD, XRF, TG and N-2 adsorption analysis. The catalytic activity of MCM-22-NZ in methane dehydro-aromatization (MDA) reaction was also studied. Mo/HMCM-22-NZ showed better methane conversion, higher benzene yield and more considerable durability of the catalyst as compared to the conventional microsized catalyst. (C) 2013 Elsevier B.V. All rights reserved.
