Degradation behaviors of perfluorosulfonic acid polymer electrolyte membranes for polymer electrolyte membrane fuel cells under varied acceleration conditions

2012 ◽  
Vol 129 (3) ◽  
pp. 1586-1592 ◽  
Author(s):  
Shichun Mu ◽  
Cheng Xu ◽  
Qing Yuan ◽  
Ying Gao ◽  
Feng Xu ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Polymer Electrolyte ◽  
Polymer Electrolyte Membrane ◽  
Polymer Electrolyte Membranes ◽  
Perfluorosulfonic Acid ◽  
Electrolyte Membrane ◽  
Electrolyte Membranes ◽  
Degradation Behaviors

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.

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.

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.

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).

Polymer Electrolyte Membrane Technology for Fuel Cells

MRS Bulletin ◽  
2005 ◽  
Vol 30 (8) ◽  
pp. 587-590 ◽  
Author(s):  
Raj G. Rajendran
Keyword(s):  
Fuel Cells ◽  
Fuel Cell ◽  
Polymer Electrolyte ◽  
Polymer Electrolyte Membrane ◽  
Pem Fuel Cell ◽  
Perfluorosulfonic Acid ◽  
Cell Systems ◽  
Cell Technology ◽  
Electrolyte Membrane ◽  
Perfluorosulfonic Acid Membranes

AbstractThe concept of using an ion-exchange membrane as an electrolyte separator for polymer electrolyte membrane (PEM) fuel cells was first reported by General Electric in 1955. However, a real breakthrough in PEM fuel cell technology occurred in the mid-1960s after DuPont introduced Nafion®, a perfluorosulfonic acid membrane. Due to their inherent chemical, thermal, and oxidative stability, perfluorosulfonic acid membranes displaced unstable polystyrene sulfonic acid membranes.Today, Nafion® and other related perfluorosulfonic acid membranes are considered to be the state of the art for PEM fuel cell technology. Although perfluorosulfonic acid membrane structures are preferred today, structural improvements are still needed to accommodate the increasing demands of fuel cell systems for specific applications. Higher performance, lower cost, greater durability, better water management, the ability to perform at higher temperatures, and flexibility in operating with a wide range of fuels are some of the challenges that need to be overcome before widespread commercial adoption of the technology can be realized. The present article will highlight the membrane properties relevant to PEM fuel cell systems, the development history of perfluorosulfonic acid membranes, and the current status of R&D activities in PEM technology.

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.

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