Biomembranes for fuel cell electrolytes employing anhydrous proton conducting uracil composites

Masanori Yamada, Itaru Honma

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)


The controls of proton transfer through membranes involve 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 fuel cells (PEFC) due to the fluidic nature of water, although the cell operation above the boiling point (>100 °C) has been considered to provide a higher efficiency and an easier humidity management. We show that biomembranes consisting of uracil and chitin phosphate have large anhydrous proton conductivities over a wide temperature range from room temperature to 160 °C with sufficient thermal stabilities. Water-free conductivities exceeding 10-3 S cm-1 have been obtained in the elastic polymeric material, and the fuel cell employing the biomembrane as an electrolyte exhibited a stable current generation under non-humidified H2/O2 conditions at 160 °C.

Original languageEnglish
Pages (from-to)2064-2069
Number of pages6
JournalBiosensors and Bioelectronics
Issue number11
Publication statusPublished - 2006 May 15


  • Biomembrane
  • Conducting material
  • Fuel cell
  • Polymer electrolyte
  • Proton transfer
  • RNA


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