[Cu ((bpy-n) 2 ((SiF6)) ]による非常に選択的な二酸化炭素吸収 (bpy-1 = 4,4'-ビピリジン; bpy-2 = 1,2-ビス ((4-ピリジル) エステン)
Stephen D Burd1, Shengqian Ma, Jason A Perman
1Department of Chemistry, CHE205, University of South Florida, 4202 East Fowler Avenue, Tampa, Florida 33620, USA.
Journal of the American Chemical Society
|February 10, 2012
まとめ
この研究では,炭酸二酸化炭素 (CO2) に対してメタン (CH4) に対して高い選択性を有する多孔調整ポリマー (PCP) が示されています. この材料は,金属の開いた場所なしに優れたCO2キャプチャを実現し,ガスの分離のための新しいアプローチを提供します.
科学分野:
- マテリアルサイエンス 材料科学
- 化学 化学は化学です.
- 化学工学は化学工学というものです.
背景:
- 孔状調整ポリマー (PCP) は,ガス分離アプリケーションで研究されています.
- PCPの選択性は,しばしば開かれた金属部位の存在と関連付けられています.
研究 の 目的:
- CO2,CH4,N2,H2Oに対する,既知のPCP, [Cu(bpy-n) ((2) (((SiF ((6)) ] のガス選択性を評価する.
- オープンな金属部位がないPCPで,高いCO2/CH4選択性を達成できるかどうかを判断する.
主な方法:
- ガス吸収測定は298Kと1 atmで実施した.
- 2つの関連するPCP, [Cu(bpy-1) ((2) ((SiF ((6)) ]と [Cu(bpy-2) ((2) ((SiF ((6)) ]が合成され,テストされました.
主要な成果:
- [Cu ((bpy-1) ((2) ((SiF ((6))) ]は,開いた金属部位のないPCPの中で298Kと1 atmで最も高いCO2吸収を示した.
- このPCPは,約10.5:1のCO2/CH4の相対吸収を示し,開かれた金属部位がない化合物の記録となった.
- [Cu ((bpy-2) ((2) ((SiF ((6))) ]はまた,高いCO2/CH4選択性を示した (約. 8:1) より大きな毛孔にもかかわらず.
結論:
- 金属の開いた部位のない多孔な調整ポリマーは,重要なCO2/CH4選択性を達成することができます.
- 研究されたPCPは,選択的なCO2捕獲と分離のための有望なプラットフォームを提供します.
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