Heteropolyacid-encapsulated self-assembled materials for anhydrous proton-conducting electrolytes

Article Abstract:

A novel proton-conducting structure and mechanism consisting of 12-phosphotungstic acid (PWA) and polystyrene sulfonic acid (PSS) is proposed. Surprisingly, this material formed the PWA-encapsulated structure by the self-assembly of -SO3H onto the PWA surface and had the high anhydrous proton conductivity of 1 x [10.sup.-2] S [cm.sup.-1] at 180 degree Celsius.

Plastics Material and Resin Manufacturing, Plastics materials and resins, Industrial Organic Chemicals, Cyclic Crude and Intermediate Manufacturing, Polystyrene, Styrene Resins, Polystyrene Resins NEC, Sulfonic Acids, Structure, Chemical properties

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Mechanisms of ion and water transport in perfluorosulfonated ionomer membranes for fuel cells

Article Abstract:

Various membranes are examined to clarify transport mechanisms of ions and water molecules in perfluorosulfonated ionomer membranes. The water transference coefficients for the Li- and Na- form membranes showed higher values than those of the H-form membranes, while the water permeabilities gave the inverse tendency.

All Other Basic Inorganic Chemical Manufacturing, Industrial inorganic chemicals, not elsewhere classified, Potassium & Sodium Compounds, Sodium & Sodium Compounds, Lithium Compounds, Sodium compounds

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Anhydrous protonic conductivity of a self-assembled acid-base composite material

Article Abstract:

The preparation for a self-assembled acid-base complex consisting of acidic surfactant monododecyl phosphate (MDP) and basic surfactant 2-undecylimidzole (UI) molecules with long hydrophobic chain is presented. The features of these UI-MDP composite materials are discussed.

Electrochemistry, Membranes (Technology)

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