Chem. J. Chinese Universities

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Synthesis of Metal@Zeolite Nanoreactors and Its Performance in CO2 Hydrogenation to Dimethyl Ether

MENG Xianglong, LIU Shike, FAN Xingze, XIANG Chen, WANG Chunzheng, GUO Hailing   

  1. State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum (East China)
  • Received:2025-09-15 Revised:2025-11-16 Online First:2025-11-21 Published:2025-11-21
  • Contact: GUO Hailing E-mail:guohl@upc.edu.cn
  • Supported by:
    Supported by the National Key Research and Development Program of China of Ministry of Science and Technology (No. 2022YFE0116000)

Abstract: Hollow Cu-ZnO@H-HZSM-5 nanoreactors were synthesized via a dissolution–recrystallization strategy, and their catalytic performance for direct CO? hydrogenation to dimethyl ether (DME) was systematically evaluated. Structural characterizations confirmed the formation of a hollow architecture, in which Cu and ZnO species were uniformly dispersed as ~2.8 nm nanoparticles within the internal cavity, while the shell was primarily composed of aluminosilicate zeolite. Incorporation of Al atoms into the zeolite framework enabled precise modulation of both the acidity strength and density. Benefiting from the confined hollow structure and tailored acid–metal synergy, the nanoreactor effectively suppressed the reverse water–gas shift reaction, delivering a high DME productivity of 55.4 55.4 mg·gcat?1 h?1 and exhibiting excellent stability without noticeable deactivation over 100 h of continuous operation.

Key words: CO2 hydrogenation, metal–zeolite, nanoreactor, dimethyl ether

CLC Number: 

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