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Novel ABPBI/POSS composite membranes for high-temperature PEMFC applications

journal contribution
posted on 13.09.2016, 09:30 authored by Qingting Liu, Xujin BaoXujin Bao, Daniel M. Rogers, Siqin Zou
Novel organic-inorganic composite membranes involving poly(2,5- benzimidazole) (ABPBI) and polyhedral oligomeric silsesquioxane (POSS) were prepared via in-situ synthesis followed by phosphoric acid doping. The formation of composites was characterized by SEM, XRD and FTIR. The results of water uptake showed that POSS cores emerged extraordinary water absorbability. When doping in phosphoric acid solution, phosphoric acid absorption in composites was dominated by functional groups linked to POSS cores. The excellent proton conductivities i.e. above 0.1S/cm at 100~160oC achieved from anhydrous ABPBI/OA-POSS composite membranes with 241wt.% of phosphoric acid absorption, make them very good candidates as the membranes for high temperature polymer electrolyte membrane fuel cell (PEMFC) applications.

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Materials

Published in

ECS Transactions

Volume

30

Pages

25 - 32

Citation

LIU, Q. ... et al., 2011. Novel ABPBI/POSS composite membranes for high-temperature PEMFC applications. ECS Transactions, 30 (1), pp.25-32.

Publisher

© Electrochemical Society

Version

VoR (Version of Record)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Publication date

2011

Notes

Closed access.

ISSN

1938-6737

eISSN

1938-5862

Language

en

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