2次元における共性自己組み立て:共性有機フレームワークのナノスフィアを結晶型および多孔型薄膜に接続する
Himadri Sekhar Sasmal1, Arjun Halder1, Shebeeb Kunjattu H2
1Department of Chemical Sciences , Indian Institute of Science Education and Research (IISER) Kolkata , Mohanpur 741246 , India.
Journal of the American Chemical Society
|November 30, 2019
まとめ
研究者は溶液処理可能な共性有機フレームワーク (COF) のナノスフィアと薄膜を開発しました. この突破はCOFの不溶性を克服し,薬物投与,センシング,ガス分離のための膜での応用を可能にします.
科学分野:
- 材料科学
- ナノテクノロジー
- ポリマー化学
背景:
- 溶性有機フレームワーク (COF) の不溶性は,薬物投与や光電子などの分野での応用を妨げています.
- 溶液処理可能なCOFの開発は,高度な材料とデバイスの製造に不可欠です.
研究 の 目的:
- 均一で溶液処理可能な,結晶で多孔なCOFナノスフィアを作成する方法を開発する.
- これらのナノスフィアを使用して,オーダーされた配列を持つ自立したCOF薄膜の製造を実証する.
- 分子分離におけるCOF薄膜の応用を研究する.
主な方法:
- 同質な溶液からCOFナノスフィアを合成するために,核形成と成長の空間的および時間的な制御.
- 液体対液体のインターフェイスでCOFナノスフィアのメソスケールの共性自己組み立てが薄膜を形成します.
- 複合材料の製造のために,COFの薄膜をアルミニウムの空洞繊維膜に鋳造する.
主要な成果:
- 調節可能なサイズ (25-570 nm) の均一なCOFナノスフィアが合成された.
- 自立型,結晶型,多孔型COF薄膜 (21~630nm厚さ) を長距離で製造した.
- COF薄膜複合材料は,ガスペア (He/O2,He/CO2,He/N2) の選択的な分離を示した.
結論:
- 開発された方法は,溶液処理可能なCOFの生産を可能にし,主要な制限を克服します.
- メソスケールの共性自己組み立ては,注文されたCOF薄膜への多用途な経路を提供します.
- 膜に統合されたCOF薄膜は,先進的なガス分離技術の可能性を示しています.
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