Three new alkaline earth metal based MOFs have been synthesized by using 4,4'-sulfobisbenzoic acid (SBBA) and alkaline earth metal salts M(NO(3))(2), M = Ca, Sr, Ba. These MOFs exhibit interesting structural diversity, variable chemical stability as well as proton conductivity.

Uracil-terminated telechelic sulfonated polyimides (SPI-U) were transformed into noncovalent network membranes through biocomplementary hydrogen bonding recognition in the presence of an adenine-based crosslinking agent. SPI-U membrane exhibited dramatically improved methanol permeability, oxidative stability, proton conductivity, and selectivity relative to those of the standard SPI.

A new open-framework aluminophosphate Na6[(AlPO4)8(OH)6]·8H2O (JU103) has been synthesized by utilization of the organotemplate-free synthetic route in alkali metal-containing system. The as-prepared JU103 possesses two-dimensional intersecting 8-ring channels. Sodium ions and water molecules in the channels facilitates JU103 excellent proton conductivity up to 3.59 × 10(-3) S cm(-1) (293 K, 98...

A review. In this paper, were reviewed the aminomethylenephosphonic acids which have several synthesis routes and many applications as separation of metals and rare earth by solvant extraction, N-C-P in medicinal chemistry, pesticides/herbicides and water-decontamination systems, organometallic complexes: MOF, gas absorption, proton conductivity and Magnetic shielding tensors / aminotris(methyl...

Proton exchange membranes (PEMs) for polymer electrolyte fuel cells (PEFCs) have recently been developed by our original techniques of the γ-ray or electron-beam crosslinking and graft polymerization. Our additional main focus is the use of cylindrical damage in polymers produced by bombardment of high-energy ions, that is called a latent track. We are taking the approach using this ion track t...

Reduction of the operating temperature to an intermediate temperature range between 350 °C and 600 °C is a necessity for Solid Oxide Fuel/Electrolysis Cells (SOFC/SOECs). In this respect the application of proton-conducting oxides has become a broad area of research. Materials that can conduct protons and electrons at the same time, to be used as electrode catalysts on the air electrode, are es...

Lyotropic liquid-crystalline (LLC) materials are important in designing porous materials, and acids are as important in chemical synthesis. Combining these two important concepts will be highly beneficial to chemistry and material science. In this work, we show that a strong acid can be used as a solvent for the assembly of nonionic surfactants into various mesophases. Sulfuric acid (SA), 10-la...

The environmental benefits of fuel cells have been increasingly appreciated in recent years. Among candidate electrolytes for solid-oxide fuel cells, yttrium-doped barium zirconate has garnered attention because of its high proton conductivity, particularly in the intermediate-temperature region targeted for cost-effective solid-oxide fuel cell operation, and its excellent chemical stability. H...

(Received February 1, 2008) As pointed out by Kutschera and Wójcik, very low concentration of protons combined with a specific density dependence of effective neutron– proton interaction could lead to a localization of “proton impurities” in neutron medium at densities exceeding four times normal nuclear matter density. We study consequences of the localization of protons for transport processe...

A series of fluorinated sulfonated poly (ether amide)s (SPAs) were synthesized for proton exchange membrane fuel cell applications. A polycondensation reaction of 4,4’-oxydianiline, 2-sulfoterephthalic acid monosodium salt, and tetrafluorophenylene dicarboxylic acids (terephthalic and isophthalic) or fluoroaliphatic dicarboxylic acids produced SPAs with sulfonation degrees of 80–90%. Controllin...