scholarly journals Ion exchange capacity controlled biphenol-based sulfonated poly(arylene ether sulfone) for polymer electrolyte membrane water electrolyzers: Comparison of random and multi-block copolymers

2021 ◽  
pp. 119370
Author(s):  
Song-Yi Han ◽  
Duk Man Yu ◽  
Yong-Hwan Mo ◽  
Su Min Ahn ◽  
Jang Yong Lee ◽  
...  
Keyword(s):  
Block Copolymers ◽  
Ion Exchange ◽  
Polymer Electrolyte ◽  
Polymer Electrolyte Membrane ◽  
Exchange Capacity ◽  
Ion Exchange Capacity ◽  
Electrolyte Membrane ◽  
Arylene Ether ◽  
Sulfonated Poly

scholarly journals Promising Potential of Eugenol (Clove) Based Organic Membrane for Polymer Electrolyte Membrane Fuel Cell

2021 ◽  
Vol 2117 (1) ◽  
pp. 012037
Author(s):  
E C Muliawati ◽  
A Budianto ◽  
A Hamid
Keyword(s):  
Fuel Cell ◽  
Polymer Electrolyte ◽  
Polymer Electrolyte Membrane ◽  
Proton Conductor ◽  
Exchange Capacity ◽  
Methanol Permeability ◽  
Ion Exchange Capacity ◽  
Electrolyte Membrane ◽  
Solvent Absorption

Abstract Fuel cell is one of alternative method to replace fossil fuel energy. The important component of fuel cell is a membrane that used for separating cathode and anode also as a proton conductor. The purpose of this research is to produce polymer electrolyte membrane from poly (eugenol sulfonate) (PES) as polymer matrix, characterize the resulting membrane analysis using ionic properties analysis by calculating ionic conductivity using impedance spectroscopy, ion exchange capacity (IEC), solvent absorption analysis by calculating water uptake and methanol permeability, and studying mechanism Proton transport that occurs on the membrane. This research was initiated by making polymer of PES, and then fabrication and characterization of electrolytic polymer membrane. The formed membrane has an optimal proton conductivity of 0.00095 S.cm-1 with PES composition of 22% (wt).

scholarly journals Polymer Electrolyte Membrane Fuel Cell Performance of a Sulfonated Poly(Arylene Ether Benzimidazole) Copolymer Membrane

2016 ◽  
Vol 2016 ◽  
pp. 1-8
Author(s):  
Hasan Ferdi Gerçel ◽  
Çağla Gül Tosun ◽  
Levent Akyalçın
Keyword(s):  
Fuel Cell ◽  
Polymer Electrolyte ◽  
Polymer Electrolyte Membrane ◽  
Proton Exchange ◽  
Cell Performance ◽  
Proton Nuclear Magnetic Resonance ◽  
Resonance Spectroscopy ◽  
Electrolyte Membrane ◽  
Arylene Ether ◽  
Sulfonated Poly

Disodium-3,3′-disulfonate-4,4′-dichlorodiphenylsulfone (SDCDPS) and 5,5′-bis[2-(4-hydroxyphenyl)benzimidazole] (HPBI) monomers were synthesized. Binding these monomers via nucleophilic aromatic polycondensation reaction, a sulfonated poly(arylene ether benzimidazole) copolymer was synthesized. Structures of monomers and copolymer were confirmed by proton nuclear magnetic resonance spectroscopy (1H NMR) and Fourier transform infrared (FTIR) spectroscopy analyses. Proton exchange membrane was prepared by dissolving copolymer in dimethylacetamide (DMAc) and casting onto a glass plate. Copolymer membrane was doped with sulfuric acid to ensure proton exchange character. Single cell performance of the copolymer membrane was tested in a polymer electrolyte membrane fuel cell test station. The highest power density of the membrane was measured as 23.7 mW cm−2 at 80°C. Thermogravimetric analysis (TGA) showed that as the degree of disulfonation is increased thermal stability of the copolymer is increased.

scholarly journals Enhanced Performance of Polymer Electrolyte Membranes via Modification with Ionic Liquids for Fuel Cell Applications

Membranes ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 395
Author(s):  
Jonathan Teik Ean Goh ◽  
Ainul Rasyidah Abdul Rahim ◽  
Mohd Shahbudin Masdar ◽  
Loh Kee Shyuan
Keyword(s):  
Ionic Liquids ◽  
Fuel Cell ◽  
Ion Exchange ◽  
Polymer Electrolyte ◽  
Proton Conductivity ◽  
Polymer Electrolyte Membrane ◽  
Exchange Capacity ◽  
Ion Exchange Capacity ◽  
Casting Technique ◽  
The Impact

The polymer electrolyte membrane (PEM) is a key component in the PEM fuel cell (PEMFC) system. This study highlights the latest development of PEM technology by combining Nafion® and ionic liquids, namely 2–Hydroxyethylammonium Formate (2–HEAF) and Propylammonium Nitrate (PAN). Test membranes were prepared using the casting technique. The impact of functional groups in grafting, morphology, thermal stability, ion exchange capacity, water absorption, swelling and proton conductivity for the prepared membranes is discussed. Both hybrid membranes showed higher values in ion exchange capacity, water uptake and swelling rate as compared to the recast pure Nafion® membrane. The results also show that the proton conductivity of Nafion®/2–HEAF and Nafion®/PAN membranes increased with increasing ionic liquid concentrations. The maximum values of proton conductivity for Nafion®/2–HEAF and Nafion®/PAN membranes were 2.87 and 4.55 mScm−1, respectively, equivalent to 2.2 and 3.5 times that of the pure recast Nafion® membrane.

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