Poly(1-vinylimidazole)/Pd-impregnated Nafion for direct methanol fuel cell applications

Poly(N-vinylimidazole)-l-Poly(tetrahydrofuran) Amphiphilic Conetworks and Gels: Synthesis, Characterization, Thermal and Swelling Behavior

“…For instance, its applications range from catalysts and ionic liquids to pharmaceutical compounds and a variety of specialty chemicals. Synthetic polymers with imidazole moieties, especially polymers containing vinylimidazole and benzimidazole, have recently received significant interest in order to utilize the unique chemical properties of the imidazole ring, e.g., as component in fuel cells and metal ion complexing membranes, gene delivery vectors, electrophoresis medium, ion imprinted matrices, enzyme immobilization carrier, corrosion protective coatings, polyampholyte microgels, catalysts, and catalyst supports, etc. These recent examples clearly indicate that poly( N -vinylimidazole) (PVIm) is a versatile polymer, and it possesses a variety of unique properties and provides several new application possibilities.…”

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 .…”

Membranes for Direct Alcohol Fuel Cells

“…A binary PVA/chitosan [153] and a ternary Nafion composite with PVA, polyimide (PI) and 8-trimethoxy silylpropyl glycerin ether-1,3,6-pyrenetrisulfonic acid (TSPS) has also been reported [154]. [156], chitosan/phosphotungstic acid [157], PVI/Pd [158], and PBI/zirconium phosphate [159]. Styrene have been grafted to Nafion using supercritical CO 2 for polymer impregnation [160], or grafted to Nafion surface via plasma-induced polymerization [161].…”

“…3, such as Nafion/Pd [24], Nafion/PFEP [143], Nafion/Fe 2 O 3 -sulphated [88], are reported to have RMPD close to unity, while Nafion/PVI/Pd [158], and Nafion/titanosulfonate [88] with β r 1, exhibit significantly high RMPD. These examples clearly indicate that the correlation between membrane selectivity and DMFC performance is quite weak, as already quoted by Ahmad et al [9], and other factors beyond the membrane characteristics should be taken into account.…”