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    • 7. 发明授权
    • Catalytic nanoporous membranes
    • 催化纳米多孔膜
    • US08518845B2
    • 2013-08-27
    • US12610897
    • 2009-11-02
    • Michael J. PellinJohn N. HrynJeffrey W. Elam
    • Michael J. PellinJohn N. HrynJeffrey W. Elam
    • B01J20/28B01J35/00B01J27/22B01J27/224B01J27/24B01J23/00B01J23/02B01J21/04B01J20/00
    • C23C16/045B01J23/22B01J23/26B01J23/42B01J23/462B01J23/755B01J35/065B01J35/1057B01J35/1061B01J37/0226B01J37/0238B01J37/0244C23C16/18C23C16/402C23C16/403C23C16/405C23C16/407C23C16/45525C23C16/45555
    • A nanoporous catalytic membrane which displays several unique features Including pores which can go through the entire thickness of the membrane. The membrane has a higher catalytic and product selectivity than conventional catalysts. Anodic aluminum oxide (AAO) membranes serve as the catalyst substrate. This substrate is then subjected to Atomic Layer Deposition (ALD), which allows the controlled narrowing of the pores from 40 nm to 10 nm in the substrate by deposition of a preparatory material. Subsequent deposition of a catalytic layer on the inner surfaces of the pores reduces pore sizes to less than 10 nm and allows for a higher degree of reaction selectivity. The small pore sizes allow control over which molecules enter the pores, and the flow-through feature can allow for partial oxidation of reactant species as opposed to complete oxidation. A nanoporous separation membrane, produced by ALD is also provided for use in gaseous and liquid separations. The membrane has a high flow rate of material with 100% selectivity. Also provided is a method for producing a catalytic membrane having flow-through pores and discreet catalytic clusters adhering to the inside surfaces of the pores.
    • 纳米多孔催化膜,显示几个独特的特征包括可以穿过膜的整个厚度的孔。 该膜具有比常规催化剂更高的催化和产物选择性。 阳极氧化铝(AAO)膜用作催化剂底物。 然后将该衬底经受原子层沉积(ALD),其允许通过沉积预备材料在衬底中将孔的受控变窄从40nm至10nm。 随后在孔的内表面上沉积催化剂层将孔径减小到小于10nm,并允许较高程度的反应选择性。 小孔径允许控制哪些分子进入孔隙,而与完全氧化相反,流通特征可以允许反应物物质的部分氧化。 还提供由ALD生产的纳米多孔分离膜,用于气相和液体分离。 该膜具有高流速的材料,具有100%的选择性。 还提供了一种制备具有粘附到孔的内表面的流通孔和分散催化剂簇的催化膜的方法。