Solid-state protonics is a new research field attracting much current attention. One of the most urgent subjects in this field is to create a novel proton conductor, from the viewpoint of developing new energy and energy conservation technologies, including photovoltaic, hydrogen storage and fuel cell technologies. In this work, we report on a proton-conductive organic-inorganic hybrid system, which is a coordination polymer. Such a metal-dimer system with multi-redox property has a large potentiality for the creation of new-functional and high-performance materials in metal-complex solids [1].We have developed several kinds of proton conductors, which are 0-D, 1-D, 2-D and 3-D coordination polymers. From the complex-plane impedance measurements, all the coordination polymers were found to be highly proton-conductive at room temperature. New highly proton-conductive coordination materials, conductive mixed-valent nanotube-MOF   and highly- concentrated hydrogen-storage nano-materials are also presented.

Solid-state protonics for clean energy

244th National Meeting (2012)

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