The State of Water in Proton Conducting Membranes [electronic resource]

• Ngôn ngữ: eng
• Ký hiệu phân loại: 666.8 Synthetic and artificial minerals and building materials
• Thông tin xuất bản: Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2010
• Mô tả vật lý: Size: 45 p. : , digital, PDF file.
• Bộ sưu tập: Metadata
• ID: 256966
• Chủ đề: 1. 30 direct energy conversion; 2. 36 materials science; 3. Fuel cells, proton conducting membranes

Tóm tắt

The research carried out under grant No. DE-FG02-07ER46371, "The State of Water in Proton Conducting Membranes", during the period June 1, 2008 - May 31, 2010 was comprised of three related parts. These are: 1. An examination of the state of water in classical proton conduction membranes with the use of deuterium T1 NMR spectroscopy (Allcock and Benesi groups). 2. A dielectric relaxation examination of the behavior of water in classical ionomer membranes (Macdonald program). 3. Attempts to synthesize new proton-conduction polymers and membranes derived from the polyphosphazene system. (Allcock program) All three are closely related, crucial aspects of the design and development of new and improved polymer electrolyte fuel cell membranes on which the future of fuel cell technology for portable applications depends.