Synthesis of ZSM-5 Zeolite Nanosheets Using Fluorine-Free Additives

IF 7.2 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Chemistry of Materials Pub Date : 2025-05-10 DOI:10.1021/acs.chemmater.5c00300

Jiaxing Zhang, Ajuan Zhou, Fang Hao, Kexin Yang, Yiren Yu, Yucai Qin, Xiongfu Zhang, Limin Ren, Anfeng Zhang, Guanghui Zhang, Chunshan Song, Xinwen Guo

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Abstract

The green synthesis of b-axis-oriented ZSM-5 nanosheets (NSs) is essential for facilitating their industrial production. Here, a set of cost-effective and eco-friendly additives is introduced for the tailored synthesis of thin ZSM-5 NSs with a b-axis thickness of 40 nm with the assistance of small seeds. Through a comprehensive exploration of synthesis methods and electron microscopy analysis, this work elucidates the pivotal roles of seeds and additives in controlling the crystal size and steering anisotropic growth kinetics during the crystallization process. The shortened straight channels of the thin ZSM-5 NSs along the b-axis significantly enhance the rapid transport of molecules within the micropores, thus manifesting a distinct catalytic advantage in the alkylation of benzene with methanol and methanol-to-propylene (MTP) conversion. Notably, the utilization of fluorine-free additives in the synthesis of thin ZSM-5 NSs marks an important step forward in zeolite materials, bridging the gap between laboratory experimentation and industrial scale-up.

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无氟添加剂合成ZSM-5分子筛纳米片

b轴取向ZSM-5纳米片的绿色合成对于促进其工业化生产至关重要。本文介绍了一套经济、环保的添加剂，用于在小种子的帮助下，定制合成b轴厚度为40 nm的ZSM-5 NSs。通过对合成方法的综合探索和电镜分析，阐明了种子和添加剂在结晶过程中控制晶体尺寸和控制各向异性生长动力学中的关键作用。细长的ZSM-5 NSs沿b轴的直线通道缩短，显著增强了分子在微孔内的快速运输，从而在苯与甲醇的烷基化和甲醇制丙烯（MTP）转化中表现出明显的催化优势。值得注意的是，在合成薄型ZSM-5 NSs时使用无氟添加剂标志着沸石材料向前迈出了重要一步，弥合了实验室实验和工业规模生产之间的差距。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Chemistry of Materials 工程技术-材料科学：综合

CiteScore

14.10

自引率

5.80%

发文量

929

审稿时长

1.5 months

期刊介绍： The journal Chemistry of Materials focuses on publishing original research at the intersection of materials science and chemistry. The studies published in the journal involve chemistry as a prominent component and explore topics such as the design, synthesis, characterization, processing, understanding, and application of functional or potentially functional materials. The journal covers various areas of interest, including inorganic and organic solid-state chemistry, nanomaterials, biomaterials, thin films and polymers, and composite/hybrid materials. The journal particularly seeks papers that highlight the creation or development of innovative materials with novel optical, electrical, magnetic, catalytic, or mechanical properties. It is essential that manuscripts on these topics have a primary focus on the chemistry of materials and represent a significant advancement compared to prior research. Before external reviews are sought, submitted manuscripts undergo a review process by a minimum of two editors to ensure their appropriateness for the journal and the presence of sufficient evidence of a significant advance that will be of broad interest to the materials chemistry community.