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Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/21834

Title: Novel octopus shaped organic-inorganic composite membranes for PEMFCs
Authors: Liu, Qingting
Sun, Quan
Ni, Na
Luo, Fang
Zhang, Rong
Hu, Shengfei
Bao, Xujin
Zhang, Fan
Zhao, Feng
Li, Xiao
Keywords: Poly(2,5-benzimidazole)
OctaAmmonium POSS
Phosphoric acid
Proton conductivity
Proton exchange membrane fuel cells
Issue Date: 2016
Publisher: © Elsevier
Citation: LIU, Q. ...et al., 2016. Novel octopus shaped organic-inorganic composite membranes for PEMFCs. International Journal of Hydrogen Energy, 41 (36), pp. 16160-16166.
Abstract: © 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.
Description: This paper is in closed access until 13th June 2017.
Sponsor: 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
Version: Accepted for publication.
DOI: 10.1016/j.ijhydene.2016.05.078
URI: https://dspace.lboro.ac.uk/2134/21834
Publisher Link: http://dx.doi.org/10.1016/j.ijhydene.2016.05.078
ISSN: 0360-3199
Appears in Collections:Closed Access (Materials)

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