Nanofiber mats electrospun from composite proton exchange membranes prepared from poly(aryl ether sulfone)s with pendant sulfonated aliphatic side chains

RSC Advances ◽  
2014 ◽  
Vol 4 (48) ◽  
pp. 25195-25200 ◽  
Author(s):  
Limei Wang ◽  
Jianhua Zhu ◽  
Jifu Zheng ◽  
Suobo Zhang ◽  
Liyan dou
Keyword(s):  
Pore Structure ◽  
Composite Membrane ◽  
Proton Exchange Membranes ◽  
Proton Exchange ◽  
Side Chains ◽  
High Porosity ◽  
Aryl Ether ◽  
Electrospun Nanofiber ◽  
Nanofiber Mats

The electrospun nanofiber mats revealed high porosity and an interconnected open pore structure. The nanofibers are clearly visible and uniform throughout the composite membrane, which was completely pore-filled.

Poly(aryl ether ketone) containing flexible tetra-sulfonated side chains as proton exchange membranes

2014 ◽  
Vol 5 (4) ◽  
pp. 1477-1486 ◽  
Author(s):  
Jinhui Pang ◽  
Sinan Feng ◽  
Yingying Yu ◽  
Haibo Zhang ◽  
Zhenhua Jiang
Keyword(s):  
Proton Exchange Membranes ◽  
Proton Exchange ◽  
Side Chains ◽  
Aryl Ether ◽  
Aryl Ether Ketone ◽  
Ether Ketone

scholarly journals Recent Progress in the Development of Aromatic Polymer-Based Proton Exchange Membranes for Fuel Cell Applications

Polymers ◽  
2020 ◽  
Vol 12 (5) ◽  
pp. 1061 ◽  
Author(s):  
Raja Rafidah R. S. ◽  
Rashmi W. ◽  
Khalid M. ◽  
Wong W. Y. ◽  
Priyanka J.
Keyword(s):  
Fuel Cells ◽  
Fuel Cell ◽  
Proton Conductivity ◽  
Elevated Temperatures ◽  
Proton Exchange Membranes ◽  
Proton Exchange ◽  
Operating Conditions ◽  
Polymer Chains ◽  
Membrane Electrode ◽  
Aryl Ether

Proton exchange membranes (PEMs) play a pivotal role in fuel cells; conducting protons from the anode to the cathode within the cell’s membrane electrode assembles (MEA) separates the reactant fuels and prevents electrons from passing through. High proton conductivity is the most important characteristic of the PEM, as this contributes to the performance and efficiency of the fuel cell. However, it is also important to take into account the membrane’s durability to ensure that it canmaintain itsperformance under the actual fuel cell’s operating conditions and serve a long lifetime. The current state-of-the-art Nafion membranes are limited due to their high cost, loss of conductivity at elevated temperatures due to dehydration, and fuel crossover. Alternatives to Nafion have become a well-researched topic in recent years. Aromatic-based membranes where the polymer chains are linked together by aromatic rings, alongside varying numbers of ether, ketone, or sulfone functionalities, imide, or benzimidazoles in their structures, are one of the alternatives that show great potential as PEMs due totheir electrochemical, mechanical, and thermal strengths. Membranes based on these polymers, such as poly(aryl ether ketones) (PAEKs) and polyimides (PIs), however, lack a sufficient level of proton conductivity and durability to be practical for use in fuel cells. Therefore, membrane modifications are necessary to overcome their drawbacks. This paper reviews the challenges associated with different types of aromatic-based PEMs, plus the recent approaches that have been adopted to enhance their properties and performance.

The Progress of Hybrid Proton Exchange Membranes Prepared by SPAEKs for Direct Methanol Fuel Cells

2012 ◽  
Vol 512-515 ◽  
pp. 1442-1445
Author(s):  
Hai Dan Lin ◽  
He Zhang ◽  
Xiao Ying Yang
Keyword(s):  
Fuel Cell ◽  
Proton Exchange Membrane ◽  
Direct Methanol Fuel Cells ◽  
Proton Exchange Membranes ◽  
Proton Exchange ◽  
Layer By Layer ◽  
Aryl Ether ◽  
Fuel Cell Performance ◽  
Nanocomposite Layer ◽  
Direct Methanol

This review summarizes efforts in developing proton exchange membranes (PEMs) with excellent electrochemical fuel cell performance prepared by SPAEK in proton exchange membrane fuel cell (PEMFC) applications. Over the past few decades, much polyelectrolyte has been extensively studied to improve the properties as alternatives with lower cost and considerable performances for PEMFC. Sulfonated poly(aryl ether ketone) (SPAEK), fell into this category, which offers the attribute of adjustable proton conductivity, excellent mechanical and thermal stability. The discussion will cover crosslinking, organic-inorganic nanocomposite, layer-by-layer approaches.

Crosslinking effect in nanocrystalline cellulose reinforced sulfonated poly(aryl ether ketone) proton exchange membranes

2018 ◽  
Vol 323 ◽  
pp. 5-15 ◽  
Author(s):  
Chuangjiang Ni ◽  
Hanbing Wang ◽  
Qi Zhao ◽  
Baijun Liu ◽  
Zhaoyan Sun ◽  
...  
Keyword(s):  
Proton Exchange Membranes ◽  
Nanocrystalline Cellulose ◽  
Proton Exchange ◽  
Aryl Ether ◽  
Aryl Ether Ketone ◽  
Ether Ketone ◽  
Sulfonated Poly

scholarly journals Sulfonated Poly(aryl ether ketone)s Containing the Hexafluoroisopropylidene Diphenyl Moiety Prepared by Direct Copolymerization, as Proton Exchange Membranes for Fuel Cell Application†

2004 ◽  
Vol 37 (21) ◽  
pp. 7960-7967 ◽  
Author(s):  
Peixiang Xing ◽  
Gilles P. Robertson ◽  
Michael D. Guiver ◽  
Serguei D. Mikhailenko ◽  
Serge Kaliaguine
Keyword(s):  
Fuel Cell ◽  
Proton Exchange Membranes ◽  
Proton Exchange ◽  
Aryl Ether ◽  
Fuel Cell Application ◽  
Aryl Ether Ketone ◽  
Ether Ketone ◽  
Sulfonated Poly

Comb-shaped polysulfones containing sulfonated polytriazole side chains for proton exchange membranes

2018 ◽  
Vol 554 ◽  
pp. 232-243 ◽  
Author(s):  
Kihyun Kim ◽  
Bo-Kyung Jung ◽  
Taeyun Ko ◽  
Tae-Ho Kim ◽  
Jong-Chan Lee
Keyword(s):  
Proton Exchange Membranes ◽  
Proton Exchange ◽  
Side Chains
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