Polybenzimidazole membranes

Zhang J, Tang Y, Song C, Zhang J (2007) Polybenzimidazole-membrane-based PEM fuel cell in the temperature range of 120-200°C. J Power Sources 172(1) 163-71... [Pg.344]

Li, Q., Hjuler, H.A., and Bjerrum, N.J., Phosphoric acid doped polybenzimidazole membranes physiochemical characterization and fuel cell applications, J. Appl. Electrochem., 31, 773, 2001. [Pg.306]

Tabk 8. Performance of cellulose acetate and polybenzimidazole membranes in reverse osmosis test ... [Pg.37]

As shown in Fig. 14, PIM-1 and PIM-7 have been found to exhibit substantially higher O /Nj selectivities (a(O2/N2)>3.0) than other polymers of similar permeability [41]. Other thermally rearranged [78] polyimides show excellent CO /CH separation selectivities. These materials were also shown to function as fuel cell membranes when doped with H3PO4 and proton conductivities of 0.15 S cm" were observed at 130°C [78] that is, higher than polybenzimidazole membranes. [Pg.25]

Wanga Y, Chnng TS, Gruender M. 2012. Sulfonated polybenzimidazole membranes for pervaporation dehydration of acetic acid. J. Membr. Sci. 415-416 486-495. [Pg.211]

W. C. Brinegar. Reverse osmosis process employing polybenzimidazole membranes. US Patent 3720607,... [Pg.79]

P. Staiti, M. Minutoli, Influence of composition and acid treatment on proton conduction of composite polybenzimidazole membranes. Journal of Power Sources 94 (2001) 9-13. [Pg.87]

Normal PEFC operating temperatures using PFSA or polyaryl membranes are in the range of 80 °C with new developments aiming at temperatures up to 120 °C [3, 4]. Higher operating temperatures up to 180 °C can be achieved with phosphoric acid doped polybenzimidazole membranes [5]. [Pg.240]

Hou H, Sun G, He R, Wu Z, Sun B (2008) Alkali doped polybenzimidazole membrane for high performance alkaline direct methanol fuel cell. J Power Sources 182 95-99... [Pg.32]

Hou H, Wang S, Jiang Q, Jin W, Jiang L, Sun G (2011) Durability study of KOH doped polybenzimidazole membrane for air-breathing alkaline direct ethanol fuel cell. J Power Sources 196 3244-3248... [Pg.216]

He R, Li Q, Jensen JO, Bjerrum NJ (2007) Eloping phosphoric acid in polybenzimidazole membranes for high temperature proton exchange membrane fuel cell. J Polym Sci Pol Chem... [Pg.225]

Wycisk R, Lee JK, Pintauro PN (2005) Sulfonated polyphosphazene-polybenzimidazole membranes for DMFCs. J Electrochem Soc 152 A892-A898... [Pg.226]

Li Q, Pan C, Jensen JO, Noye P, Bjerrum NJ (2007) Cross-linked polybenzimidazole membranes for fuel cells. Chem Mater 19 350-352... [Pg.226]

Nores-Pondal FJ, Buera MP, Corti HR (2010) Thermal properties of phosphoric acid-doped polybenzimidazole membranes in water and methanol-water mixtures. J Power Sources 195 6389-6397... [Pg.354]

C.H. Shen, L.C. Jheng, S.L.C. Hsu, J.T.W. Wang, Phosphoric acid-doped cross-linked porous polybenzimidazole membranes for proton exchange membrane fuel cells, J. Mater. Chem. 21 (39) (2011) 15660-15665. [Pg.266]

Jiao, K. and Li, X. (2010) A three-dimensional non-isothermal model of high temperature proton exchange membrane fuel cells with phosphoric acid doped polybenzimidazole membranes. Fuel Cells, 10, 351. [Pg.836]

Asymmetric polybenzimidazole membranes have been developed for RO applications, in the form of hollow fibers [154] and flat film membranes [155] for water transport. By comparison with cellulose acetate, FBI has very attractive chemical, flammability and thermal properties. There are two problems encountered in attempting the preparation of such membranes for TEM (1) deformation during drying and (2) lack of contrast. Often specific methods must be developed for each membrane type, although method development is quite time consuming. [Pg.215]

Staiti P, Lufrano F, Arico AS, Passalacqua E, Antonucci V (2001) Sulfonated polybenzimidazole membranes - preparation and physico-chemical characterization. J Membr Sci... [Pg.428]

Table 3.2. Measured and simulated io of the HOR in a PEM fuel cell [8, 47]. (Data reprinted from Electrochimica Acta, 52.7, Song C, et al., PEM fuel cell reaction kinetics in the temperatme range of23-120 C, 2552-61 and from Journal of Power Sources, 172.1, Zhang J, et al.. Polybenzimidazole-membrane-based PEM fuel cell in the temperature range of 120-200 C, 163-71, both 2007, with permission from Elsevier.)...

Li Q, Hjuler HA, Bjerrum NJ. Phosphoric acid doped polybenzimidazole membranes Physicochemical characterization and fuel cell apphcations. J Appl Electrochem... [Pg.888]

For phosphoric acid-doped polybenzimidazole membranes with an intermediate Ap Ta (3.5), hydrogen bonds are likely formed as shown by infrared spectroscopy [61, 62] and molecular dynamic simulation [63]. The overall proton conductivity of the acid-doped membranes is at least an order of magnitude lower than that of pure phosphoric acid due to the presence of the solid polymer phase. The polymer does not seem to interrupt the extensive hydrogen bond network of the phosphoric acid, though it does decrease the percolation within the liqmd-like part of the phosphoric acid domain. As a result, the proton conducting mechanism remains the same, i.e., primarily via the Grotthuss... [Pg.50]

Sll, Fig. 4.5) are depicted along with B2. Again, all TGAs indicate excellent and similar thermal stabilities of all membranes up to 300 °C. Therefore, it can be concluded that both sulfonated and phosphonated polymers can be selected as acidic cross-linkers for polybenzimidazole membranes. [Pg.77]

Liao J, Li QF, Rudbeck HC et al (2011) Oxidative degradation of polybenzimidazole membranes as electrolytes for high temperature proton exchange membrane fuel cells. Fuel Cells 11 745-755... [Pg.88]

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