纳米单晶ZSM-5分子筛调控合成及应用

金雨; 齐放; 朱干宇; 李会泉; 李少鹏; 郭洪范

doi:10.11949/0438-1157.20251491

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纳米单晶ZSM-5分子筛调控合成及应用

材料化学工程与纳米技术 | 更新时间：2026-04-29

- 纳米单晶ZSM-5分子筛调控合成及应用
- Controlled Synthesis and Application of Nano-Sized Single-Crystal ZSM-5 Zeolite
- 化工学报 2026年
- 作者机构：
  
  1.沈阳化工大学化学工程学院，辽宁沈阳 110142
  2.中国科学院过程工程研究所战略金属资源绿色循环利用国家工程研究中心，北京 100190
  3.中国科学院大学化学工程学院，北京 100049
- 作者简介：
  
  金雨（2001—），女，硕士研究生，yjin@ipe.ac.cn
  朱干宇（1988—），男，博士，研究员，gyzhu@ipe.ac.cn
  郭洪范（1979—），男，博士，副教授，hongfanguo@126.com
- 基金信息：
  
  国家自然科学基金项目(52304431;52570184);中国博士后科学基金面上资助项目(2024M753251);辽宁省自然科学基金项目(2024-MS-129);中国科学院特别研究助理资助项目(2023年度)
- DOI：10.11949/0438-1157.20251491
  中图分类号： TQ 17
- 收稿：2025-12-31，
  
  修回：2026-04-29，
  
  录用：2026-04-29，
- 稿件说明：
移动端阅览
金雨, 齐放, 朱干宇, 等. 纳米单晶ZSM-5分子筛调控合成及应用[J/OL]. 化工学报, 2026.

JIN Yu, QI Fang, ZHU Ganyu, et al. Controlled Synthesis and Application of Nano-Sized Single-Crystal ZSM-5 Zeolite[J/OL]. CIESC Journal, 2026.
金雨, 齐放, 朱干宇, 等. 纳米单晶ZSM-5分子筛调控合成及应用[J/OL]. 化工学报, 2026. DOI： 10.11949/0438-1157.20251491.

JIN Yu, QI Fang, ZHU Ganyu, et al. Controlled Synthesis and Application of Nano-Sized Single-Crystal ZSM-5 Zeolite[J/OL]. CIESC Journal, 2026. DOI： 10.11949/0438-1157.20251491.

摘要

ZSM-5分子筛是典型多孔硅铝酸盐材料，因其优异的水热稳定性、耐酸性、择形催化等特点被广泛应用于化工、环境等领域。但是，分子筛的单一微孔结构导致其应用时仍面临扩散限制、活性位点可及性差、积碳失活较快等问题。本研究以四丙基氢氧化铵（TPAOH）为单一模板剂、氯化铝（AlCl

）为高活性铝物种，采用一锅法高效合成纳米单晶ZSM-5分子筛，考察了铝源、硅铝比、TPAOH添加量及晶化温度对分子筛结晶特征、形貌结构、孔结构及铝配位环境的影响，明确了结晶机理和甲醇制丙烯（MTP）催化性能。结果表明：硅铝比增大与晶化温度升高，均导致分子筛的相对结晶度与BET比表面积呈先增后减的非单调变化，同时促使晶体粒径减小。TPAOH添加量增大则持续提升的相对结晶度与BET比表面积，并显著细化晶体粒径。在铝源为氯化铝、硅铝比100、

(TPAOH)/

(SiO

)为0.35以及晶化温度170℃的优化条件下，纳米单晶ZSM-5分子筛粒径为~110 nm，BET比表面积为398.72 m

/g，平均孔径为5.44 nm，MTP反应中甲醇转化率维持在80%以上，丙烯选择性最高达到60%。纳米ZSM-5分子筛晶体生长过程历经“成核-熟化-稳定”多阶段。本研究可为高性能纳米单晶ZSM-5分子筛材料的设计与制备提供重要参考。

Abstract

ZSM-5 zeolite is a typical porous aluminosilicate material widely used in chemical engineering

environmental protection

and other fields due to its excellent hydrothermal stability

acid resistance

and shape-selective catalysis. However

the sole microporous structure of zeolites still presents challenges in applications

such as diffusion limitations

poor accessibility of active sites

and rapid deactivation by coking. In this study

nano-sized single-crystal ZSM-5 zeolite was efficiently synthesized via a one-pot method using TPAOH as the sole template and AlCl

as the highly active aluminum source. The effects of aluminum source

Si/Al ratio

TPAOH content

and crystallization temperature on the crystallization characteristics

morphology

pore structure

and aluminum coordination environment of the zeolite were investigated

and the crystallization mechanism and catalytic performance in methanol to propylene (MTP) were elucidated. The results show that increasing the Si/Al ratio and crystallization temperature both lead to a non-monotonic change in the relative cryst

allinity and BET specific surface area of the zeolite

which first increase and then decrease

while also reducing the crystal size. Increasing the TPAOH content continuously enhances the relative crystallinity and BET specific surface area and significantly refines the crystal size. Under the optimized conditions using aluminum chloride as the aluminum source

Si/Al ratio of 100

(TPAOH)/

(SiO

) = 0.35

and crystallization temperature of 170℃

the obtained nano-sized single-crystal ZSM-5 zeolite exhibits a crystal size of approximately 110 nm

a BET specific surface area of 398.72 m

an average pore size of 5.44 nm

maintains a methanol conversion rate above 80% in the MTP reaction

and achieves a maximum propylene selectivity of 60%. The crystal growth process of the nano-sized ZSM-5 zeolite undergoes multiple stages of "nucleation-ripening-stabilization." This study provides an important reference for the design and preparation of high-performance nano-sized single-crystal ZSM-5 zeolite materials.

关键词

Keywords

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