Hydrogel-based Nanochannel Membrane Utilizing AAO for Concentration Gradient Power Generation
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초록
내용
Nanofluidic channels has unique fluidic transport properties in the nanometer scale that can be utilized as a promising platform to improve the performance of conventional ion exchange membrane. In this regard, we fabricated poly(acrylic acid) (PAAc) hydrogel incorporated with anodic aluminium oxide (AAO) membrane as nanofluidics model system to utilize electric energy from the membrane. A commercialized AAO membrane with 20 nm pore diameter was functionalized by 3-(mercaptopropyl) trimethoxysilane (MPTS) silane coupling agent to promote interfacial adhesion and improve its properties. Then, PAAc hydrogel was synthesized onto the functionalized AAO membrane to build homogeneous nanochannel membrane structure. This model nanochannel system membrane utilizing hydrogel and AAO improve the energy harvesting performance in concentration cell application.