期刊
ACS APPLIED MATERIALS & INTERFACES
卷 12, 期 21, 页码 23812-23821出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.0c02273
关键词
methane utilization; methanol; zeolite; metal-organic framework; composite
资金
- Vidyasirimedhi Institute of Science and Technology
- Thailand Toray Science Foundation
- Thailand Research Fund [MRG6180099]
- Office of Higher Education Commission
- National Nanotechnology Center (NANOTEC), NSTDA, Ministry of Science and Technology, Thailand, through its program of Research Network NANOTEC
The development of an effective approach for methane utilization, especially methane conversion to methanol, is a crucial challenge that has remained unsolved satisfactorily. Herein, we propose an alternative concept of methane utilization to methanol over Fe-ZSM-5@ZIF-8. The concept is to use the designed composite as a dual catalyst in which ZIF-8 and Fe-ZSM-5 act simultaneously as a gas adsorbent and catalyst, respectively. In this case, methane can be adsorbed on ZIF-8 at 50 degrees C and subsequently converted to methanol at a moderate temperature (150 degrees C) on Fe-ZSM-5. Interestingly, the promising catalytic performance is observed on Fe-ZSM-5@ZIF-8, whereas only trace amounts of produced methanol are detected on isolated Fe-ZSM-5 and ZIF-8. Moreover, the designed composite also facilitates a facile methanol desorption at the hydrophobic surface of the composite. This first example opens up new promising horizons in combined perspectives for gas storage and catalytic process applications.
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