Bao_20160509-D-037-Int. J. Hydrog. Energy-review.pdf (366.52 kB)
Novel octopus shaped organic-inorganic composite membranes for PEMFCs
journal contribution
posted on 2016-06-27, 11:24 authored by Qingting Liu, Quan Sun, Na Ni, Fang Luo, Rong Zhang, Shengfei Hu, Xujin BaoXujin Bao, Fan Zhang, Feng Zhao, Xiao Li© 2016 Hydrogen Energy Publications LLC.Phosphoric acid doped polybenzimidazoles are among the most interesting proton exchange membrane materials for high temperature proton exchange membrane fuel cell applications. As a major challenge the proton conducting decline due to free phosphoric acid leaching during the long term fuel cell operation is addressed by fixing overmuch phosphoric acid in the polymer matrix. Novel organic-inorganic composite membranes are prepared via in situ synthesis of poly(2,5-benzimidazole) (ABPBI) and OctaAmmonium POSS (AM-POSS) hybrid composites (ABPBI/AM-POSS) following phosphoric acid doping and membrane casting procedures. Compared with the pristine ABPBI membrane, the introduction of AM-POSS into ABPBI polymer membrane caused water and phosphoric acid absorbilities increasing dramatically, resulting in the significant increase of proton conductivities at whether hydrous or anhydrous condition. ABPBI/3AM composite membranes with phosphoric acid uptake above 250% showed best proton conductivities from room temperature to 160 °C, indicating these composite membranes could be excellent candidates as a polymer electrolyte membrane for low and intermediate temperature applications.
Funding
This work was financially supported by the Hubei Provincial Key Technology R&D Program (Grant no. [2013]2-3), Science and Technology Department of Hubei Province (Grant no. 2013BAA086)and the Human Resource and Social Security Ministry for Returned Chinese Scholars, China (Grant no. [2014]240
History
School
- Aeronautical, Automotive, Chemical and Materials Engineering
Department
- Materials
Published in
International Journal of Hydrogen EnergyCitation
LIU, Q. ...et al., 2016. Novel octopus shaped organic-inorganic composite membranes for PEMFCs. International Journal of Hydrogen Energy, 41 (36), pp. 16160-16166.Publisher
© Hydrogen Energy Publications. Published by ElsevierVersion
- NA (Not Applicable or Unknown)
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
2016Notes
This paper was accepted for publication in the journal International Journal of Hydrogen Energy and the definitive published version is available at http://dx.doi.org/10.1016/j.ijhydene.2016.05.078ISSN
0360-3199Publisher version
Language
- en