| 초록 |
A concentration gradient is a promising source of energy that can be converted into electrical energy by an ion exchange membrane. The movement of charged ions through membrane channels generates an ionic current that flows down an electrochemical gradient. Since nanopores can substantially increase the ion transportation compared with non-structured membranes, anodic aluminum oxide (AAO) membrane has been previously employed as nanofluidic system. In this study, to enrich the charge density on the AAO, the surface of AAO membrane was functionalized with 3-(aminopropyl)triethoxysilane (APTES). Then, the APTES-modified AAO was filled with positively-charged hydrogel of poly(3-acrylamidopropyl) trimethylammonium chloride. By applying the prepared composite membranes to salted solutions, we investigated their energy harvesting performance. |
