I&EC 259 |
| The need for an efficient, highly proton-conducting electrolyte with high operational temperature for polymer electrolyte fuel cells (PEFC) has resulted in the increased attention to the option of the ionic liquids as fuel cell electrolytes. Ionic liquids have unique physicochemical properties such as, immeasurably low vapor pressure, potential to maintain high ionic conductivity over a wide range of temperature, and greater thermal and electrochemical stability. If task-oriented property, proton conductivity in the present case, is molecularly designed in ionic liquids, the scope for the utility of the ionic liquids will immediately expand to fuel cell applications. We have recently recognized that Bronsted acid-base systems, constituting a very important subgroup of ionic liquids, are proton conducting and serve as fuel cell electrolytes under non-humidifying and elevated temperature conditions. In this talk, I shall therefore, discuss the expedient means of the preparation and characterization of a novel series of protic ionic liquids, and evaluate the proton conduction behavior of the systems, with emphasis on the development of strategies to prepare proton conducting ion-gels containing protic ionic liquids for their potential use as polymer electrolytes under non-humidifying conditions for a new mesothermal fuel cell. |
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Ionic Liquids: Not Just Solvents Anymore OR Ionic Liquids: Parallel Futures (Sponsored by Green Chemistry and Engineering, Separation Science and Technology and Novel Chemistry with Industrial Applications Sub-Divisions)
8:30 AM-12:30 PM, Wednesday, 29 March 2006 Georgia World Congress Center -- B314, Oral
Division of Industrial and Engineering Chemistry |