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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/115578

    Title: Power generation by a pH-regulated conical nanopore through reverse electrodialysis
    Authors: Hsu, Jyh-Ping;Lin, Sheng-Chang;Lin, Chih-Yuan;Tseng, Shiojenn
    Keywords: Power generation;Reverse electrodialysisby;pH-regulated conical nanopore
    Date: 2017-10-31
    Issue Date: 2018-11-15 12:10:35 (UTC+8)
    Abstract: To assess the possibility of energy harvesting through reverse electrodialysis (RED), we consider the electrokinetic behavior of the ion transport in a pH-regulated conical nanopore connecting two large reservoirs having different bulk salt concentrations, taking account of the effect of osmotic flow. In particular, we examine the influence of the ion diffusion direction, the solution pH, and the bulk concentration ratio on that behavior in detail, and discuss the underlying mechanisms. We show that the geometrically asymmetric nature of the nanopore yields profound and interesting phenomena arising mainly from the distribution of ions in its interior. Assuming a single polymeric nanopore, a power density of 18.2 W/m2 can be generated. We show that the present system has the potential of serving as an ion-selective and a salinity gradient power generation device. The maximum power efficiency which is based on assuming a linear ionic distribution in nanopore can yield appreciable deviation, especially if pH deviates significantly from 7, where the presence of H+ and OH− needs be considered.
    Relation: Journal of Power Sources 366, p.169-177
    DOI: 10.1016/j.jpowsour.2017.09.022
    Appears in Collections:[Graduate Institute & Department of Mathematics] Journal Article

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