Novel partially fluorinated graft block copolymer ionomer as potential proton exchange membrane material

Polymer ◽  
2016 ◽  
Vol 95 ◽  
pp. 91-101 ◽  
Author(s):  
Cigdem Bilir ◽  
Tuba Erdogan ◽  
Serhat Odabas ◽  
Elif Erdal Unveren
Keyword(s):  
Block Copolymer ◽  
Proton Exchange Membrane ◽  
Proton Exchange ◽  
Membrane Material ◽  
Exchange Membrane

scholarly journals Mechanical behavior of a hydrated perfluorosulfonic acid membrane at meso and nano scales

RSC Advances ◽  
2019 ◽  
Vol 9 (17) ◽  
pp. 9594-9603 ◽  
Author(s):  
Cong Feng ◽  
Yan Li ◽  
Kunnan Qu ◽  
Zhiming Zhang ◽  
Pengfei He
Keyword(s):  
Mechanical Properties ◽  
Fuel Cells ◽  
Mechanical Behavior ◽  
Internal Structure ◽  
Proton Exchange Membrane ◽  
Proton Exchange ◽  
Membrane Material ◽  
Perfluorosulfonic Acid ◽  
The Stability ◽  
Exchange Membrane

Perfluorosulfonic acid (PFSA) is widely used as the membrane material for proton-exchange membrane fuel cells, and its mechanical properties directly affect the stability and the life of the internal structure of the proton exchange membrane.

A New Type of High Temperature Membrane for Proton Exchange Membrane Fuel Cells

2006 ◽  
Author(s):  
Jinjun Shi ◽  
Jiusheng Guo ◽  
Bor Jang
Keyword(s):  
High Temperature ◽  
Fuel Cell ◽  
Low Temperature ◽  
Proton Exchange Membrane ◽  
Carbon Monoxide Poisoning ◽  
Pem Fuel Cell ◽  
Proton Exchange ◽  
Membrane Material ◽  
New Type ◽  
Exchange Membrane

The proton exchange membrane (PEM) fuel cell operated at high temperature is advantageous than the current low temperature PEM fuel cell, in that high temperature operation promotes electro-catalytic reaction, reduces the carbon monoxide poisoning, and possibly eliminates methanol crossover in Direct Methanol Fuel Cell (DMFC). However, current commercially viable membranes for PEMFC and DMFC, such as the de-facto standard membrane of Dupont Nafion membrane, only work well at temperatures lower than 80°C. When it is operated at temperatures of higher than 80°C, especially more than 100°C, the fuel cell performance degrades dramatically due to the dehydration. Therefore, high temperature proton exchange membrane material is now becoming a research and development focus in fuel cell industry. In this paper, a new type of high temperature PEM membrane material was investigated. This new type of membrane material was optimally selected from polyether ether ketone (PEEK)-based materials, poly (phthalazinon ether sulfone ketone) (PPESK). The performance of the sulfonated PPESK membrane with degree of sulfonation (DS) of 93% was studied and compared to that of Nafion (®Dupont) 117 membrane. The result showed SPPESK has a comparable performance to Nafion (®Dupont) 117 at low temperature (<80°C) and better performance at high temperature (>80°C). The other advantage of SPPESK is that it has much lower cost than that of Nafion. These characteristics make SPPESK an attractive candidate for high temperature proton exchange membrane material.

Sulfonated graphene oxide-decorated block copolymer as a proton-exchange membrane: improving the ion selectivity for all-vanadium redox flow batteries

2018 ◽  
Vol 6 (36) ◽  
pp. 17740-17750 ◽  
Author(s):  
Md. Abdul Aziz ◽  
Sangaraju Shanmugam
Keyword(s):  
Graphene Oxide ◽  
Block Copolymer ◽  
Proton Exchange Membrane ◽  
Ion Selectivity ◽  
Proton Exchange ◽  
Discharge Time ◽  
Redox Flow Batteries ◽  
Sulfonated Graphene ◽  
Exchange Membrane ◽  
Vanadium Redox

A SPEKS/sGO composite membrane with superior ion selectivity and chemical stability was synthesized. The composite and pristine SPEKS membranes exhibited a 10.4- and 6.5-times greater self-discharge time compared with the commercial Nafion-212 membrane.

Inorganic modification of block copolymer for medium temperature proton exchange membrane application

2010 ◽  
Vol 351 (1-2) ◽  
pp. 168-177 ◽  
Author(s):  
Mayur K. Mistry ◽  
Namita Roy Choudhury ◽  
Naba K. Dutta ◽  
Robert Knott
Keyword(s):  
Block Copolymer ◽  
Proton Exchange Membrane ◽  
Proton Exchange ◽  
Medium Temperature ◽  
Exchange Membrane

A sulfonated polybenzophenone/polyimide copolymer as a novel proton exchange membrane

RSC Advances ◽  
2015 ◽  
Vol 5 (62) ◽  
pp. 50082-50086 ◽  
Author(s):  
Takahiro Miyahara ◽  
Junpei Miyake ◽  
Soichi Matsuno ◽  
Masahiro Watanabe ◽  
Kenji Miyatake
Keyword(s):  
Fuel Cell ◽  
Block Copolymer ◽  
Proton Conductivity ◽  
Proton Exchange Membrane ◽  
Gas Permeability ◽  
Proton Exchange ◽  
High Proton Conductivity ◽  
High Proton ◽  
Exchange Membrane

A sulfonated polybenzophenone/polyimide block copolymer membrane exhibited high proton conductivity, good dimensional and mechanical stabilities, and low gas permeability, which are attractive for fuel cell applications.

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