Partially sulfonated Poly(arylene ether sulfone)/organically modified metal oxide nanoparticle composite membranes for proton exchange membrane for direct methanol fuel cell

Lee, Wonmok; Gil, Seung Chul; Kim, Haekyoung; Han, Kyu‐Sung; Lee, Hyunjung

doi:10.1016/j.compscitech.2016.04.020

Cited by 29 publications

(1 citation statement)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…18 The modification of functional polymers with hydrophilic polymers has been reported to enhance organic-organic phases and thermal characteristics. 19,20 However, the modification of polymers with nonorganic materials likes clay, 21 silica, 22 metal oxides, 23 and carbon nanotubes 24 are necessary for improving the features of PEM. Therefore, some researchers have sought ways to form quality PEMs by creating new membrane materials with comparable or good fuel cell applications.…”

Section: Molten Carbonate Fuel Cell (Mcfc) Mcfc Uses Liquidmentioning

confidence: 99%

A review of alternative polymer electrolyte membrane for fuel cell application based on sulfonated poly(ether ether ketone)

2021

View full text Add to dashboard Cite

A proton exchange membrane (PEM) is a crucial component in a fuel cell application as a proton carrier and separator for the anode and cathode. Sulfonated poly(ether ketone ether) (SPEEK) has been recognized as one of the promising alternatives PEM in fuel cell application due to the advantagious properties of SPEEK, including the high thermal stability, proton conductivity, mechanical strength, low fuel crossover, and easy to operate. The proton conductivity properties of SPEEK are influenced by the degree of sulfonation (DS). In practical, high DS of SPEEK-based membrane will produce high proton conductivity and a high density of sulfonic acid functional groups grafted into the polymer backbone. However, the excessive production of DS will have side effects on the stability of membrane dimensional and chemical properties.Meanwhile, the low DS of SPEEK has reduced the ability to diffuse the proton within the polymeric matrix. Therefore, getting the optimal DS SPEEK is very important to fabricate the alternative of PEM. But this process is hard. Thus, the researchers have modified the SPEEK membrane with various types of nanoparticles as a filler. This is one of the promising efforts to improve the SPEEK membrane properties and fuel cell application performance. This review aimed to discuss eight conductive materials such as silica, clay, metal oxide, heteropolyacids, carbon, graphene, metal organic framework, and zeolite used as fillers to develop the PEM component based on SPEEK for fuel cell applications. This review also comprehensively discusses the characterization of SPEEK-based membrane modification, including mechanical properties, water intake, proton conductivity, thermal properties, fuel permeability, crystal and structural analysis, chemical oxidation stability, and single-cell performance. Thus, this article can serve as a reference for researchers to planning the best strategies to optimize the properties and performance of the SPEEKbased membrane for fuel cell application.

show abstract