New inorganic–organic proton conducting membranes based on Nafion and hydrophobic fluoroalkylated silica nanoparticles

Mechanical and Dynamic Mechanical Analysis of Proton‐Conducting Polymers

“…More recently, this author showed that when silica nanoparticles in the concentration range 0 < C < 1.6 are fluoroalkylated (hydrophobic), storage modulus increases and the intensity of the a relaxation peak decreases as C raises [69]. This dual behavior is ascribed to the fact that functionalized silica particles can interact with both the polar domains and the fluorocarbon hydrophobic domains.…”

Sulfonated hydrocarbon membranes for medium-temperature and low-humidity proton exchange membrane fuel cells (PEMFCs)

“…Under a fully hydrated condition, sulfonated ZrO 2 nanoparticles exhibited proton conductivity of 0.01 S cm −1 at 120 • C. Since its proton conductivity was higher than that of Nafion ® at 120 • C and 70% RH, the resulting composite is expected to show improved low humidity PEMFC performances [232]. Also, the use of hydrophobic fluoroalkylated silica afforded the formation of composite membranes with remarkable mechanical and thermal stability, and good proton conductivity [233].…”

Synthesis, studies and fuel cell performance of “core–shell” electrocatalysts for oxygen reduction reaction based on a PtNix carbon nitride “shell” and a pyrolyzed polyketone nanoball “core”

“…The resulting gas diffusion electrodes (GDEs) are hot-pressed onto the membranes as previously described [30]. Single fuel cell tests are executed as described elsewhere using a back pressure of the reagents equal to either 4 bar and 1 bar [40].…”