具有高C2H2吸收率和选择性的稳健阴离子柱状超微孔C2H2/C2H4分离材料

IF 4.7 2区化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR

Inorganic Chemistry Pub Date : 2025-03-21 DOI:10.1021/acs.inorgchem.5c00749

Jinghong Yang, Liming Lin, Shuixiang Zou, Zhenyu Ji, Cheng Chen, Mingyan Wu

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引用次数: 0

摘要

从 C2H2/C2H4 混合物中去除微量 C2H2 以提纯 C2H4 至关重要，但却极具挑战性。在这项工作中，我们通过引入对 C2H2 具有特异性识别能力的 SiF62-，构建了一种具有高 C2H2 吸附能力和出色的 C2H2/C2H4 分离选择性的坚固吸附剂 FJI-W88。FJI-W88 不仅在 0.01 巴（2.80 mmol g-1）的条件下具有超高的 C2H2 吸收能力，而且还具有 698 的 C2H2/C2H4 (1/99) IAST 选择性。色谱柱突破实验进一步证明，FJI-W88 可以从 C2H2/C2H4 (1/99) 混合物中获得高纯度（≥99.95%）和高收率（230.0 mol kg-1）的 C2H4。此外，FJI-W88 的 C2H2/C2H4 (1/99) 分离性能在高温高湿等恶劣条件下基本不受影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Robust Anion-Pillared Ultramicroporous Material for C2H2/C2H4 Separation with High C2H2 Uptake and Selectivity

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Robust Anion-Pillared Ultramicroporous Material for C2H2/C2H4 Separation with High C2H2 Uptake and Selectivity

Removing trace amounts of C₂H₂ from C₂H₂/C₂H₄ mixtures for C₂H₄ purification is crucial but extremely challenging. In this work, by introducing SiF₆^2– with specific recognition for C₂H₂, we constructed a robust adsorbent, FJI-W88, with a high C₂H₂ adsorption capacity and excellent C₂H₂/C₂H₄ separation selectivity. FJI-W88 not only exhibits ultrahigh C₂H₂ uptake at 0.01 bar (2.80 mmol g^–1) but also shows exceptional C₂H₂/C₂H₄ (1/99) IAST selectivity of 698. Column breakthrough experiments further demonstrate that FJI-W88 can obtain C₂H₄ of high purity (≥99.95%) and high yield (230.0 mol kg^–1) from C₂H₂/C₂H₄ (1/99) mixtures. Additionally, the C₂H₂/C₂H₄ (1/99) separation performance of FJI-W88 is basically unaffected under harsh conditions, such as high temperature and humidity.

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来源期刊

Inorganic Chemistry 化学-无机化学与核化学

CiteScore

7.60

自引率

13.00%

发文量

1960

审稿时长

1.9 months

期刊介绍： Inorganic Chemistry publishes fundamental studies in all phases of inorganic chemistry. Coverage includes experimental and theoretical reports on quantitative studies of structure and thermodynamics, kinetics, mechanisms of inorganic reactions, bioinorganic chemistry, and relevant aspects of organometallic chemistry, solid-state phenomena, and chemical bonding theory. Emphasis is placed on the synthesis, structure, thermodynamics, reactivity, spectroscopy, and bonding properties of significant new and known compounds.