Biomembranes for fuel cell electrolytes employing anhydrous proton-conducting uracil composites

Masanori Yamada, Itaru Honma

Research output: Contribution to specialist publicationArticle

5 Citations (Scopus)


The control of proton transfer through membranes involves fundamental properties of chemical energy conversion in industrial devices as well as living systems. In particular, ion-exchange membranes are generally used as superior proton-conductors for polymer electrolyte membrane fuel cells (PEMFCs) because of the fluidic nature of water, although cell operation above water's boiling point (>100°C) has been considered to provide higher efficiency and easier humidity management. We show that biomembranes consisting of uracil and chitin phosphate have high anhydrous proton conductivities over a wide temperature range, from room temperature to 160°C, with sufficient thermal stability. Water-free conductivities exceeding 10-3 S/cm have been obtained in the elastic polymeric material, and a fuel cell employing the biomembrane as an electrolyte exhibited stable current generation under non-humidified H2/O2 conditions at 160°C.

Original languageEnglish
Number of pages5
Specialist publicationFuel Cells Bulletin
Publication statusPublished - 2006 May


Dive into the research topics of 'Biomembranes for fuel cell electrolytes employing anhydrous proton-conducting uracil composites'. Together they form a unique fingerprint.

Cite this