Enhancing catalytic activity of zeolitic octahedral metal oxides through zinc incorporation for ethane oxidative dehydrogenation

Yu, Bolun; Li, Denan; Zhu, Qianqian; Yao, Shufan; Zhang, Lifeng; Li, Yanshuo; Zhang, Zhenxin

doi:10.1016/j.apcatb.2023.123463

Cited by 2 publications

(1 citation statement)

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“…To date, only a limited number of ZOMOs have been reported, including ZOMOs based on ɛ-Keggin units of [XMo 12 O 40 ] (X=Fe, Mn, Co, Bi, Zn), [8] cubane units of [X 4 O 16 ] (X=Mo and W), [9] hexagon units [XY 6 O 21 ] (X=P, Se, Te and Y=Mo, W), [10] and pentagon units of [X 6 O 21 ] (X=Mo, V, W, Nb, Ta). [11] Due to their unique redox characteristics and ion-exchange capacities, ZOMOs are ideal for gas separation applications by enabling the regulation of pore size and properties. Additionally, the microporosity of the material can be finely adjusted at the subatomic level, providing precise control over the separation performance particularly under hightemperature and humid conditions.…”

Section: Introductionmentioning

confidence: 99%

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

Ma,

Hu,

Zou

et al. 2024

Angew Chem Int Ed

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Zeolitic 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.

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