Organic Nanoionics in Polymers for Energy Conversion System

MATERIALS RIG SEMINAR

Associate Professor Manabu Tanaka

Department of Applied Chemistry, Tokyo Metropolitan University

https://m-tanaka.fpark.tmu.ac.jp/1cv_en.html

 Nanoionics is known as unique phenomena and properties connected with fast ion transport in all-solid-state nanoscale systems, especially ininorganic materials. We first revealed similar fast ion transport in organic polymer nanofibers fabricated by electrospinning and named this phenomenon “Organic Nanoionics” [1]. First, I will present such unique proton, anion, and lithium ion transport properties in the electrospun polymer nanofibers [2,3]. Then, I will share our work on polymer electrolyte membranes for fuel cells and secondary batteries [4-6]. The ion conductive polymer nanofiber composite electrolyte membranes showed improved electrolyte characteristics and fuel cell/battery performances by utilizing fast ion transport properties based on organic nanoionics. Finally, our recent work on hydrogen production by anion exchange membrane water electrolysis will be also presented [7].

 

[1] M. Tanaka, Polymer Journal, 48, 51 (2016). [2] R. Takemori, M. Tanaka, et al., RSC Advances, 4, 20005 (2014). [3] T. Watanabe, M. Tanaka, et al., Nanoscale, 8, 19614 (2016). [4] M. Tanaka, et al., “Electrospun Sulfonated Polyimide Nanofibers for Polymer Electrolyte Composite Membranes”, in “Polyimides - Advances in Blends and Nanocomposites”, M.-D. Damaceanu, R. N. Darie-Nita, Eds, Chapter 9, pp325-352, Elsevier (2023). [5] M. Tanaka et al., Journal of Power Sources, 342, 125 (2017). [6] T. Watanabe, M. Tanaka, et al., Journal of Power Sources, 423, 255 (2019). [7] Y. Nara, M. Tanaka, et al., Polymers for Advanced Technology, 33, 2863 (2022).