一种金属封装型催化剂及其制备方法和应用

By using molecular sieves with MFI or BEA topologies as supports, and combining solid-phase grinding and dry gelation methods to prepare metal-encapsulated catalysts, the problems of uneven metal particle loading and easy sintering in the impregnation method were solved, and the stability and activity of the catalysts under high-temperature conditions were improved.

CN118437380BActive Publication Date: 2026-07-17CHINA UNIV OF PETROLEUM (EAST CHINA)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA UNIV OF PETROLEUM (EAST CHINA)
Filing Date
2024-04-30
Publication Date
2026-07-17

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Abstract

本发明属于催化剂技术领域，具体涉及一种金属封装型催化剂及其制备方法和应用。本发明提供的金属封装型催化剂，包括载体和封装于所述载体内部的金属氧化物纳米颗粒；所述载体包括具有MFI拓扑结构的分子筛或具有BEA拓扑结构的分子筛；所述金属氧化物中的金属为过渡金属和 / 或稀土金属。以具有MFI或BEA拓扑结构的分子筛为载体，可以抑制金属纳米颗粒的聚集现象从而使催化剂表现出优异的抗烧结性能，而且其金属与载体之间的强相互作用也能够在一定程度上提高催化剂的稳定性。将金属物种的高活性和多孔分子筛载体的相关限域反应特性相结合所产生的协同催化作用提高金属封装型催化剂的催化性能。
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