Thermally Modified γ‐CD‐MOF Monoliths for Durable and Efficient One‐Step CO 2 Purification From Hydrocarbons

熱変性γ-シクロデキストリンMOFモノリスによる炭化水素からの耐久性のある効率的な一工程CO2精製 (AI 翻訳)

Shuting Fan, Kai Zhou, Qian Li, Sheng Zhang, Yatao Zhang, Sui Zhang

Advanced Functional Materials📚 査読済 / ジャーナル2026-02-15#CCUS

🤖 gxceed AI 要約

日本語

本論文は、熱処理により耐水性を向上させたシクロデキストリンMOFモノリスを用いて、炭化水素ガスからCO2を効率的に除去する方法を報告している。高湿度条件下でも30日間安定であり、CO2/CH4選択性は約2500と優れている。これにより、実用的なCO2分離材料の開発に貢献する。

English

This study demonstrates thermally modified cyclodextrin MOF monoliths for durable CO2 removal from hydrocarbons. The thermal treatment creates a protective carbon coating, maintaining performance under 90% humidity for 30 days. The monolith achieves high CO2 uptake and exceptional CO2/CH4 selectivity (~2500), offering a robust solution for natural gas purification.

Unofficial AI-generated summary based on the public title and abstract. Not an official translation.

📝 gxceed 編集解説 — Why this matters

日本のGX文脈において

本研究成果はCCUS技術の一部としてCO2分離の効率化に寄与するが、日本のGX政策（GX実現に向けた基本方針など）における具体的な連携は限定的。ただし、低コスト・耐久性のあるCO2分離材として将来的な産業応用が期待される。

In the global GX context

While this paper advances carbon capture materials, it does not directly address corporate disclosure or climate policy. Its global implication lies in improving the technical feasibility of CCUS, which is critical for hard-to-abate sectors.

👥 読者別の含意

🔬研究者:This paper provides a novel method for fabricating water-stable MOF monoliths for CO2 capture, relevant for researchers in adsorption and CCUS.

📄 Abstract（原文）

The removal of carbon dioxide (CO 2 ) impurities from hydrocarbons is vital for natural gas purification and other industrial processes. Conventional powdered MOFs, however, often suffer from handling difficulties and limited stability under humid conditions, restricting their practical deployment. In this work, we demonstrate thermally modified cyclodextrin MOF (CD‐MOF) monoliths as robust adsorbents for CO 2 separation. Thermal treatment generates a thin amorphous carbon coating, which protects the framework against hydrolysis while maintaining crystallinity and adsorption performance after 30 days of exposure to 90% relative humidity. The monolithic CD‐MOF exhibits a CO 2 uptake of 60.0 cm 3 g −1 at 298 K and 100 kPa, outperforming most state‐of‐the‐art adsorbents. Ideal adsorbed solution theory (IAST) predicts an outstanding CO 2 /CH 4 (1:99) selectivity of ∼2500. Breakthrough experiments with single‐component and multicomponent mixtures (CO 2 /CH 4 /C 2 H 2 /C 2 H 4 /C 2 H 6 ) further confirm efficient CO 2 capture even under high humidity. These findings highlight the advantages of shaping MOFs into water‐stabilized monoliths, offering a practical pathway toward durable and high‐performance CO 2 removal in hydrocarbon purification.

🔗 Provenance — このレコードを発見したソース

semanticscholar https://doi.org/10.1002/adfm.74538first seen 2026-05-06 00:07:51

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