Polymer Electrolyte Membranes

2019 ◽  
Vol 23 ◽  
pp. 82-89
Author(s):  
Ponnusamy Senthil Kumar ◽  
C. Femina Carolin
Keyword(s):  
Fuel Cells ◽  
Polymer Electrolyte ◽  
Proton Conductivity ◽  
Chemical Structure ◽  
Polymer Electrolyte Membrane ◽  
Polymer Electrolyte Membranes ◽  
Electrolyte Membrane ◽  
Chemical Structures ◽  
Different Types ◽  
Electrolyte Membranes

Polymer electrolyte membranes (PEM) with good properties are essential for the improvement of electrochemical operations. The increase in properties of polymer electrolyte membranes will develop the performance of polymer electrolyte membranes in the fuel cells. The importance of polymer electrolyte membranes is increasing recently due to its activity and simplicity in energy associated applications like automobiles and various portable applications. PEM has various properties like proton conductivity, chemical stability, mechanical properties, thermal stability and so on. These properties are enhanced and influenced by various factors like morphology, the molecular weight of the membranes, chemical structures, cross linkages etc. The present chapter attempts to summarize about the properties of polymer electrolyte membrane involved in the different types of electrochemical utilizations. Keywords: Polymer electrolyte membrane, fuel cells, morphology, proton conductivity, chemical structure.

Fabrication of a polymer electrolyte membrane with uneven side chains for enhancing proton conductivity

RSC Advances ◽  
2016 ◽  
Vol 6 (83) ◽  
pp. 79593-79601 ◽  
Author(s):  
Yunfeng Zhang ◽  
Cuicui Li ◽  
Xupo Liu ◽  
Zehui Yang ◽  
Jiaming Dong ◽  
...  
Keyword(s):  
Polymer Electrolyte ◽  
Proton Conductivity ◽  
Polymer Electrolytes ◽  
Polymer Electrolyte Membrane ◽  
Polymer Electrolyte Membranes ◽  
Side Chains ◽  
Short Side ◽  
Electrolyte Membrane ◽  
Electrolyte Membranes ◽  
Transfer Channels

Enhancement of proton conductivity of polymer electrolyte membranes was achieved by broadening the proton transfer channels via attaching acid groups to both long and short side chains of polymer electrolytes simultaneously.

Simulation model of the fractal patterns in ionic conducting polymer films

Open Physics ◽  
2010 ◽  
Vol 8 (1) ◽  
Author(s):  
Shahizat Amir ◽  
Nor Mohamed ◽  
Siti Hashim Ali
Keyword(s):  
Polymer Electrolyte ◽  
Polymer Electrolyte Membrane ◽  
Fractal Dimensions ◽  
Growth Patterns ◽  
Polymer Electrolyte Membranes ◽  
Electrolyte Membrane ◽  
Ionic Conducting ◽  
Electrolyte Membranes ◽  
Fractal Patterns ◽  
The Media

AbstractNormally polymer electrolyte membranes are prepared and studied for applications in electrochemical devices. In this work, polymer electrolyte membranes have been used as the media to culture fractals. In order to simulate the growth patterns and stages of the fractals, a model has been identified based on the Brownian motion theory. A computer coding has been developed for the model to simulate and visualize the fractal growth. This computer program has been successful in simulating the growth of the fractal and in calculating the fractal dimension of each of the simulated fractal patterns. The fractal dimensions of the simulated fractals are comparable with the values obtained in the original fractals observed in the polymer electrolyte membrane. This indicates that the model developed in the present work is within acceptable conformity with the original fractal.

scholarly journals Modeling the local potential at Pt nanoparticles in polymer electrolyte membranes

2015 ◽  
Vol 17 (15) ◽  
pp. 9802-9811 ◽  
Author(s):  
Mohammad Javad Eslamibidgoli ◽  
Pierre-Éric Alix Melchy ◽  
Michael H. Eikerling
Keyword(s):  
Polymer Electrolyte ◽  
Analytical Model ◽  
Potential Distribution ◽  
Polymer Electrolyte Membrane ◽  
Pt Nanoparticles ◽  
Polymer Electrolyte Membranes ◽  
Local Potential ◽  
Electrolyte Membrane ◽  
Electrolyte Membranes

We present a physical–analytical model for the potential distribution at Pt nanodeposits in a polymer electrolyte membrane (PEM).

High-performance binary cross-linked alkaline anion polymer electrolyte membranes for all-solid-state supercapacitors and flexible rechargeable zinc–air batteries

2019 ◽  
Vol 7 (18) ◽  
pp. 11257-11264 ◽  
Author(s):  
Min Wang ◽  
Nengneng Xu ◽  
Jing Fu ◽  
Yuyu Liu ◽  
Jinli Qiao
Keyword(s):  
Energy Storage ◽  
Solid State ◽  
Polymer Electrolyte ◽  
High Performance ◽  
Polymer Electrolyte Membrane ◽  
Polymer Electrolyte Membranes ◽  
Energy Storage And Conversion ◽  
Electrolyte Membrane ◽  
Electrolyte Membranes ◽  
Zinc Air Batteries

A high-performance binary cross-linked alkaline anion polymer electrolyte membrane was fabricated for energy storage and conversion devices.

scholarly journals Composite Polymers Development and Application for Polymer Electrolyte Membrane Technologies—A Review

Molecules ◽  
2020 ◽  
Vol 25 (7) ◽  
pp. 1712 ◽  
Author(s):  
Gabriele G. Gagliardi ◽  
Ahmed Ibrahim ◽  
Domenico Borello ◽  
Ahmad El-Kharouf
Keyword(s):  
Fuel Cells ◽  
Polymer Electrolyte ◽  
Proton Conductivity ◽  
Direct Methanol Fuel Cells ◽  
Polymer Electrolyte Membrane ◽  
Composite Membranes ◽  
Pem Fuel Cells ◽  
Chemical Degradation ◽  
Electrolyte Membrane ◽  
Nafion Membranes

Nafion membranes are still the dominating material used in the polymer electrolyte membrane (PEM) technologies. They are widely used in several applications thanks to their excellent properties: high proton conductivity and high chemical stability in both oxidation and reduction environment. However, they have several technical challenges: reactants permeability, which results in reduced performance, dependence on water content to perform preventing the operation at higher temperatures or low humidity levels, and chemical degradation. This paper reviews novel composite membranes that have been developed for PEM applications, including direct methanol fuel cells (DMFCs), hydrogen PEM fuel cells (PEMFCs), and water electrolysers (PEMWEs), aiming at overcoming the drawbacks of the commercial Nafion membranes. It provides a broad overview of the Nafion-based membranes, with organic and inorganic fillers, and non-fluorinated membranes available in the literature for which various main properties (proton conductivity, crossover, maximum power density, and thermal stability) are reported. The studies on composite membranes demonstrate that they are suitable for PEM applications and can potentially compete with Nafion membranes in terms of performance and lifetime.

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