Release Time:2024-09-01  Hits:

Date of Publication: 2022-10-04

Journal: 新型炭材料

Institution: 化工学院

Volume: 25

Issue: 5

Page Number: 321-324

ISSN: 1007-8827

Abstract: T-type zeolite/carbon foam composites with a hierarchical structure were prepared by carbonizing polyurethane foam impregnated with a mixture of polyamic acid and T-type zeolite. The carbonization was conducted at 900 degrees C in flowing nitrogen. The as-prepared composites were examined using SEM, XRD and N(2) adsorption techniques. It has been found that the foam-like monolith consists of open cells with an average size of ca. 500 mu m, and T-type zeolites are anchored on the cell walls of the foam with their structure remaining un-changed even after heat treatment at 900 degrees C. The zeolite/CF composites with a BET surface area of 328 m(2)/g are microporous, and have a narrow pore size distribution centered at 0.45 nm.

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