Surface-modified Nafion membrane by trioctylphosphine-stabilized palladium nanoparticles for DMFC applications

Effect of Mea Hot-Pressing on the Performance of Direct Methan Ol Fuel Cells

“…The mixtures were stirred for about 30min and sonicated for at least 1h. based on a research, after sonication, the catalyst ink became quite viscous, then the catalyst slurry was evenly sprayed on carbon paper (GDL 30BC) with a spray gun (GP-2, Fuso Seiki, Japan) [8,9]. The load of the catalyst for the anode and cathode are all 3mg.cm -2 .…”

Solid-state synthesis of Pt/C cathode catalysts for direct methanol fuel cells

“…[3][4][5] Despite many technological advantages of DMFCs, there are drawbacks associated with DMFCs such as high material cost, methanol crossover from the anode to the cathode side, the slow kinetic reaction of methanol, low catalytic activity of the catalysts, low power density, low Pt utility efficiency of the Pt/C catalysts, etc. [6][7][8][9][10][11] In addition, the loading of the catalysts is considerably high in DMFCs as compared to hydrogen-based proton exchange membrane fuel cells (PEMFCs) due to the low catalytic activity of the catalysts, which severely cause charge-mass transfer limitations and hence further decrease the overall efficiency of DMFCs. 12 In order to demonstrate an efficient DMFC, it is crucial to synthesize Pt/C catalysts with high catalytic activities by engineering their structure, morphology, and composition.…”

Conductivity and methanol permeability of sulfonated polystyrene membrane with dispersed montmorillonite nanoclay

“…Relevant work includes the modification of Nafion® membranes [3], the preparation of new hydrocarbon materials [4, 5] and the synthesis of new composite materials [6]. The modifications of Nafion® are developed toward methanol crossover reduction and water retention at high temperature [7]. The inorganic fillers were certainly introduced to reduce methanol permeability [8], and heteropolyacids with strong acidity were suitable for modifying Nafion® to keep moisture at high temperature [9].…”