Improvement of the barrier properties of Nafion® by fluoro-modified montmorillonite

Preparation and properties of high performance nanocomposite proton exchange membrane for fuel cell

“…The present system of Nafion ® /MMT-POP-diamine provides promising results by two factors: (i) the improved compatibility of MMT-POP-diamine compared to other inorganic fillers employed previously [20]; and (ii) the highly anisotropic morphology of the MMT platelets that could be more effective in blocking the passage of methanol than materials with other geometries [14,15]. Yet, the proton conductivity of the composite membrane is still substantially lower than that of Nafion ® itself.…”

“…Recently, the composite membranes have been prepared by the addition of ceramic oxide such as silica, titania, zirconia, mixed silicon-titanium oxides, zeolites, silicon-aluminum oxides, and montmorillonite in the Nafion ® membrane [9][10][11][12][13][14][15][16][17][18][19][20]. Rhee et al reported that the ion channel size of Nafion ® composite membranes with 3 wt% HSO 3 -MMT loading were reduced from 3.84 to 2.94 nm [19].…”

Nafion–clay nanocomposite membranes: Morphology and properties

“…Several papers describe the synthesis and characterization of Nafion membranes based on sulfonated [23][24][25][26][27][28], fluoro-modified [29,30] conventional organo-modified [31][32][33] or native clays [33]. Other approaches for synthesizing Nafionclay hybrids have also been reported [34,35].…”

Effects of tin phosphate nanosheet addition on proton-conducting properties of sulfonated poly(ether sulfone) membranes

“…One possible approach to solving these problems is to add an inorganic compound to the organic matrix [9][10][11][12][13][14]. It has been reported that the chemical, thermal, and mechanical stabilities of membranes can be improved by dispersing an inorganic filler in the organic matrix.…”

“…It has also been reported that rapid ionic transfer through the interface between the two different materials occurs in some proton-conducting organic/inorganic composite materials [12,15]. Higher stabilities, greater proton conductivity, or better fuel-cell performance have been reported for some composite systems such as Nafion/TiO 2 , SPEEK/WO 3 , SPES/ heteropoly acid (H 3 PW 12 O 40 ), SPES/boron phosphate (BPO 4 ), or SPEEK/ organically treated montmorillonite (OMMT) [12][13][14][16][17][18][19].…”