Measurement of the Young’s modulus of Nafion membranes by Brillouin light scattering
Brillouin light scattering from acoustic phonons has been used to investigate the elastic properties of Nafion 115 membranes in the…
Proton-Conducting Electrolytes Based on Silylated and Sulfonated Polyetheretherketone: Synthesis and Characterization
A derivative of polyetheretherketone (PEEK) having sulfonic acid groups and silicon‐containing substituents covalently bound to the aromatic backbone has been…
High Ionic Exchange Capacity Polyphenylsulfone (SPPSU) and Polyethersulfone (SPES) Cross-Linked by Annealing Treatment: Thermal Stability, Hydration Level and Mechanical Properties.
Thermal stability, hydration and mechanical properties of thermally cross-linked sulfonated aromatic polymers (SAP) with high ionic exchange capacity (IEC) were…
Electrodes for PEM Fuel Cells
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Properties of Proton-Conducting Sulfonated Aromatic Polymer Membranes: Stress-Strain Tests and Dynamical Analysis.
The mechanical properties of sulfonated aromatic polymers (SAPs: SPEEK and SPPSU) are studied by tensile stress–strain tests and dynamic mechanical…
Hybrid Materials for Polymer Electrolyte Membrane Fuel Cells: Water Uptake, Mechanical and Transport Properties
The water uptake, transport and mechanical properties of organic–inorganic hybrid materials based on sulfonated and silylated, cross-linked polyetheretherketone (called SOSi-PEEK/N,…
SPEEK-TiO2 Nanocomposite Hybrid Proton Conductive Membranes Via in Situ Mixed Sol-Gel Process
Hybrid membranes based on highly sulfonated poly(ether ether ketone) (SPEEK, DS = 0.9) where titania network was dispersed by in situ sol–gel…
A Simple New Route to Covalent Organic/Inorganic Hybrid Proton Exchange Polymeric Membranes
The development of proton exchange membranes as electrolytes for polymer electrolyte fuel cells operating at intermediate temperatures has been achieved…
Novel Nafion – zirconium phosphate composite membranes with enhanced stability of proton conductivity at medium temperature and high relative humidity
In order to increase the stability of Nafion conductivity at temperatures higher than 100 °C, composite membranes made of recast Nafion…
Thermal Stability and Thermodynamic Properties of Hybrid Proton-Conducting Polyaryl Etherketones
The thermal and structural stability of sulfonated cross-linked PEEK (polyether ether ketone) and its silicon-containing class II hybrid derivatives were…
SPEEK/PPSU-Based Organic-Inorganic Membranes: Proton Conducting Electrolytes in Anhydrous and Wet Environments
A telechelic organic–inorganic polymer (SiPPSU) where –SiPh(OH)2 groups are covalently linked to the polymeric chain of polyphenylsulfone (PPSU) was prepared…
On the decay of Nafion conductivity at high Temperature and relative Humidity
The irreversible conductivity decay exhibited by Nafion 117 membranes above certain values of temperature and relative humidity (RH) has been…