一鍋,室温 CO2 を有孔金属有機フレームワークに変換する
Kentaro Kadota, You-Lee Hong1,2, Yusuke Nishiyama1,3
1NMR Science and Development Division, RIKEN SPring-8 Center and RIKEN-JEOL Collaboration Center, Yokohama, Kanagawa 230-0045, Japan.
Journal of the American Chemical Society
|October 4, 2021
まとめ
研究者は環境条件下で二酸化炭素 (CO2) を 多孔性金属有機フレームワーク (MOF) に変換しました この新しい方法はCO2から安定したMOFを生成し,炭素捕獲と材料合成の持続可能な経路を提供します.
科学分野:
- 材料科学
- 化学について
- 持続可能性
背景:
- 二酸化炭素 (CO2) を機能的な材料に変換することは,炭素中立社会にとって極めて重要です.
- メタル・オーガニック・フレームワーク (MOF) は,多孔性材料として広く研究されているが,CO2の惰性により,その合成は未知のものである.
- MOFリンカーの合成のための既存の方法は,しばしば厳しい条件または高いエネルギー投入を必要とします.
研究 の 目的:
- 環境条件下でCO2からMOFを直接合成する方法を開発する.
- MOFの建設のための再生可能資源としてのCO2の可能性を調査する.
- MOF合成におけるCO2の化学的惰性の課題を克服する.
主な方法:
- 周りの温度と圧力で1ポット合成アプローチが採用されました.
- ピペラジンとCO2からブリッジング・ディカルバマート・リンカーの in situ 形成
- キュービック [Zn4O (piperazine dicarbamate) ]3MOFの結晶化
主要な成果:
- CO2から高孔質の結晶MOFを合成した.
- 結果として得られるMOFは,表面積が大きい (∼2366 m2 g−1) で,CO2含有量が大きい (>30 wt %).
- ディカルバマート結合体は,熱力学的に不安定であるが,MOF格子の中で安定し,永久の多孔性を確保する.
結論:
- CO2を原料として使用したMOF合成の新しく効率的な方法を示した.
- 開発されたMOFは,CO2のキャプチャと貯蔵のアプリケーションに重要な可能性を秘めています.
- この研究は CO2 を先進的な材料の持続可能な構成要素として活用する新たな道を開きます
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