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You searched for: Journal name Journal of membrane science Remove constraint Journal name: Journal of membrane science Subject term ambient temperature Remove constraint Subject term: ambient temperature Subject term cations Remove constraint Subject term: cations Subject term clay Remove constraint Subject term: clay
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1. High-temperature proton exchange membranes based on polybenzimidazole and clay composites for fuel cells

Author:
David Plackett; Ana Siu; Qingfeng Li; Chao Pan; Jens Oluf Jensen; Søren Fæster Nielsen; Anastasia A. Permyakova; Niels J. Bjerrum
Source:
Journal of membrane science 2011 v.383 no.1-2 pp. 78-87
ISSN:
0376-7388
Subject:
X-radiation; ambient temperature; artificial membranes; cations; clay; dimensional stability; electric power; fuel cells; hydrogen; hydrogen bonding; infrared spectroscopy; ion exchange; permeability; phosphoric acid; polymers; relative humidity; salts; tensile strength
Abstract:
... Good dispersion of modified laponite clay was achieved in polybenzimidazole (PBI) solutions which, when cast and allowed to dry, resulted in homogeneous and transparent composite membranes containing up to 20wt% clay in the polymer. The clay was organically modified using a series of ammonium and pyridinium salts with varying polarity and hydrogen-bonding capacity. Clay modification by ion-exchang ...
DOI:
10.1016/j.memsci.2011.08.038