Enhanced performance and durability of composite membranes containing anatase titanium oxide for fuel cells operating under low relative humidity

Ae Rhan Kim, Vinothkannan Mohanraj, Kyu Ha Lee, Ji Young Chu, Byung-Hyun Park, Myung-Kwan Han, Dong Jin Yoo

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)

Abstract

In this work, sulfonated diblock copolymers (SDBCs) were prepared by polycondensation of sulfonated poly(ether-ether-ketone) (SPEEK) and hydrophobic oligomer, which were combined with sintered anatase titanium oxide (S-An-TiO 2) to create a hybrid membrane for apply in proton exchange membrane fuel cells (PEMFCs) operating with low relative humidity (RH). Then, a series of composite membranes (SDBC/S-An-TiO 2) were prepared by varying the wt% of S-An-TiO 2 blended with SDBC. The results showed that appropriate quantity (ie, 15 wt%) of S-An-TiO 2 can significantly improve the proton conductivity and physiochemical properties of prepared composite membrane, as well as the PEMFC performance and durability under 20% RH. The 1.5 wt% of SDBC/S-An-TiO 2 offers high current output, power output, and durability values at 60°C under 20% RH, which are 0.207 A cm −2, 0.074 W cm −2 and over 90 hours, respectively. These results can be attributed to the good interfacial compatibility between S-An-TiO 2 and SDBC.

Original languageEnglish
Pages (from-to)4835-4851
Number of pages17
JournalInternational Journal of Energy Research
Volume46
Issue number4
Early online date21 Nov 2021
DOIs
Publication statusPublished - 16 Mar 2022
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2021 John Wiley & Sons Ltd.

Funder

This research was supported by Basic Science Research through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (NRF‐2021R1I1A1A0105090511). This work was supported by grants from the Medical Research Center Program (NRF‐2017R1A5A2015061) through the National Research Foundation (NRF), which is funded by the Korean government (MSIP). This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT and Future Planning (NRF‐2020R1A2B5B01001458).

Ministry of Science, ICT and Future Planning, Grant/Award Number: NRF‐2020R1A2B5B01001458); National Research Foundation (NRF), Grant/Award Number: NRF‐2017R1A5A2015061; Ministry of Education, Grant/Award Number: NRF‐2021R1I1A1A0105090511 Funding information

This research was supported by Basic Science Research through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (NRF-2021R1I1A1A01050905). This work was supported by grants from the Medical Research Center Program (NRF-2017R1A5A2015061) through the National Research Foundation (NRF), which is funded by the Korean government (MSIP). This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT and Future Planning (NRF-2020R1A2B5B01001458).

Keywords

  • anatase TiO
  • composite membrane
  • durability
  • low humidity condition
  • performance
  • proton conductivity

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Fuel Technology
  • Nuclear Energy and Engineering
  • Renewable Energy, Sustainability and the Environment

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