Application of spirobiindane-based microporous poly(ether sulfone)s as polymeric binder on solid alkaline exchange membrane fuel cells
- Title
- Application of spirobiindane-based microporous poly(ether sulfone)s as polymeric binder on solid alkaline exchange membrane fuel cells
- Author
- 이영무
- Keywords
- Poly(ether sulfone)s; Spirobiindane moieties; Internal void spaces; SAEMFCs
- Issue Date
- 2018-12
- Publisher
- ELSEVIER SCIENCE BV
- Citation
- JOURNAL OF MEMBRANE SCIENCE, v. 568, page. 67-75
- Abstract
- In this report, we introduced spirobiindane group to poly(arylene ether sulfone) (PES) to build the structure of polymers with intrinsic microporosity (PIMs). A novel PESs (QOH-SBIs), which have spirobiindane and tetra (quaternary ammonium) hydroxide pendant moieties, were synthesized for anion-conducting binder material in membrane electrode assembly (MEA) of solid alkaline exchange membrane fuel cell (SAEMFC). The time-lag method was used to check the high gas permeability of the polymers. The high permeability is due to the micro-pores at the molecular level that is formed by the difference in chain thicknesses between two alternating units, thick spirobiindane group and thin arylene ether sulfone group. QOH-SBIs shows a semi-rigid chain conformation in a solution. The inter-chain spacing and chain conformation were measured with wide angle X-ray diffraction (WAXD) and small angle neutron scattering (SANS), respectively. High gas permeability directly affected the performance of SAEMFC. The MEA with spirobiindane-modified PES shows much higher maximum power density than that of spirobiindane-free PESs.
- URI
- https://www.sciencedirect.com/science/article/pii/S0376738818317101?via%3Dihubhttps://repository.hanyang.ac.kr/handle/20.500.11754/120991
- ISSN
- 0376-7388; 1873-3123
- DOI
- 10.1016/j.memsci.2018.09.048
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > ENERGY ENGINEERING(에너지공학과) > Articles
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