SCOPE
Hydrogen production
Maturity Level
TRL 2-3
Development Level
Prototype
Proton exchange liquid crystal polymers
Entity:
Polymers based on polyethers, polyoxazolidines and other heteroatomic precursors, as an alternative to perfluorinated polyethylene acid sulphonates (Nafion type), with liquid crystal characteristics. They facilitate the transport of protons by means of an innovative and more selective mechanism. Unlike Nafion-type membranes, these polymers do not require the critical presence of moisture to facilitate proton conductivity and they allow more selective transport of protons, reducing problems such as cross-over.
Challenges met
- Dependence on Nafion type membranes and need for minimum humidity conditions for operation.
Scope of application
Electrochemical cell type devices and fuel cells, applicable to electricity production in stationary environments, large or medium-sized electric generators, electric motors for heavy transport (ships, trucks, etc.) and mobility at the utility level (cars, motorcycles, vans, etc.).
In particular, proton transport membranes are essential in fuel cells and there is currently only one commercially available type (Nafion-type membranes). The potential lies in replacing these membranes.
Main publications
- Jordi Guardià, Marta Giamberini, José Antonio Reina, Xavier Montané
Synthesis and characterization of dendronized side chain liquid crystalline Poly(2-oxazoline)s towards biomimetic ion channels
European Polymer Journal
Volume 196, 112273 (2023)
https://doi.org/10.1016/j.eurpolymj.2023.112273.
- K. A. Bogdanowicz, G. A. Rapsilber, J. A. Reina and M. Giamberini
Liquid Crystalline Polymeric Wires for Selective Proton Transport, Part 1: Wires Preparation
Polymer
92, 50-57 (2016)
https://www.sciencedirect.com/science/article/abs/pii/S0032386116302191
Related projects
- “Development of biomimetic membranes for proton transport and CO2 adsorption, and catalysis to obtain methanol” (ENE2017-86711-C3-3-R), (83,490.00 euro), PI: Ricard García-Valls
- “Membrane-electrode assemblies for an integrated circular energy system based on fuel cells and CO2 capture and photo-electro-catalytic conversion” EMECARBON (PID2020-116322RB-C32) (127.050,00 € ), PIs: Dr. Ricard García Valls and Dr. Alberto Puga
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