A Zeolitic Octahedral Metal Oxide with Ultrahigh Porosity for High-temperature and High-humidity Alkyne/Alkene Separation

Angew Chem Int Ed Engl. 2024 Apr 16:e202406374. doi: 10.1002/anie.202406374. Online ahead of print.ABSTRACTZeolitic octahedral metal oxide is a newly synthesized all-inorganic zeolitic material and has been used for adsorption, separation, and catalysis. Herein, a new zeolitic octahedral metal oxide was synthesized and characterized. The porous framework was established through the assembly of [P2Mo13O50] clusters with PO4 linkers. Guest molecules occupied the framework, which could be removed through heat treatment, thereby opening the micropores. The pore characteristics were controlled by the cations within the micropore, enabling the adjustment of the interactions with alkynes and alkenes. This resulted in good separation performance of ethylene/acetylene and propylene/propyne even under high temperature and humidity conditions. The high stability of the material enabled the efficient recovery and reuse without discernible loss in the separation performance. Due to the relatively weak interaction between the adsorbed alkyne and the framework, the adsorbent facilitated the recovery of a highly pure alkyne. This feature enhances the practical applicability of the material in various industrial processes.PMID:38627207 | DOI:10.1002/anie.202406374

Source: Angewandte Chemie - April 16, 2024 Category: Chemistry Authors: Baokai Ma Panpan Hu Liangcheng Zou Qianqian Zhu Lifeng Zhang Satoshi Ishikawa Wataru Ueda Yanshuo Li Zhenxin Zhang Source Type: research