メタル・オーガニック・フレームワークにおける格子寸法と孔径の継続的な変化

Shuai Yuan¹, Lan Huang², Zhehao Huang^3,4

¹Department of Chemistry, Texas A&M University, College Station, Texas 77843-3255, United States.

Journal of the American Chemical Society

|February 15, 2020

まとめ

研究者は有機結合剤を混ぜることで連続変数金属有機フレームワーク (CVMOF) を開発した. これは,高度な材料の適用のために,毛穴の大きさや表面積などのMOFの特性を正確に調整することができます.

科学分野:

材料科学
ナノテクノロジー
化学について

背景:

メタル・オーガニック・フレームワーク (MOF) は,格子メトリック制御を通じて調節可能な特性を提供します.
MOFの性質の継続的な変化を達成することは大きな課題でした.

研究の目的:

連続変数MOF (CVMOF) を混合リンク器戦略を用いて合成し,特徴づけること.
MOFの単位細胞の寸法,表面積,および毛穴の大きさを正確に制御することを実証する.

主な方法:

Zr6クラスターベースのMOFに,長さや比率の異なる有機リンク材を組み込む.
単結晶X線 difraktion,粉末X線 difraktion,光 quenching,および分子シミュレーションを使用して特徴づけました.

主要な成果:

混合結合剤の均質な組み込みで,別々の相ではなく固体溶液を形成する.
セルエッジの長さ (17.8332.63 Å),BET表面積 (5853791 m2g−1) および毛穴のサイズ (最大15.9 Å) の連続調節.

結論:

ミックス・リンカーのアプローチにより,前例のない漁獲能力を有するCVMOFが作られます.
この合成戦略は,異なる金属ノードを持つ様々なMOFシステムに適用できます.

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