Journal of Applied Electrochemistry

, Volume 6, Issue 2, pp 127–134

A special type of raney-alloy catalyst used in compact biofuel cells

  • U. Gebhardt
  • J. R. Rao
  • G. J. Richter
Article

Abstract

In developing implantable biofuel cells to generate higher power it is essential to prepare very thin and highly active electrodes in order to produce the required energy in as small a volume as possible. A method has been developed for glucose electrodes which enables us to produce firmly adhering active layers on very thin foils (up to 50 μn) of homogeneous alloys, containing platinum and a ferrous metal, by controlled anodic dissolution of the non-noble metal. Such electrodes are roughly 10 to 20 times more active than conventional glucose anodes. The activity is remarkably increased by the addition of tungsten and tantalum to the alloy. So far it has been possible to transfer 17 out of the 24 available electrons of the glucose molecule.

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References

  1. [1]
    G. Raab, personal communication; R. Dötzer and H. Kohlmüller, DOS 1909031.Google Scholar
  2. [2]
    J. Giner and P. Malachesky, Proc. Artificial Heart Program Conf., Washington, D.C., June 1969, p. 839.Google Scholar
  3. [3]
    S. J. Yao, M. Michuda, F. Markley and S. K. Wolfson, Jr in ‘From Electrocatalysis to Fuel Cells’ (G. Sandstede, Ed.), Seattle, Univ. of Washington Press (1972) p. 291.Google Scholar
  4. [4]
    S. J. Yao, A. J. Appleby and S. K. Wolfson, JrZeitschrift f. Physikalische Chemie, Neue Folge 82 (1972) 225.Google Scholar
  5. [5]
    B. Y. C. Wan and A. C. C. Tseung,Medical and Biological Engineering, January 1974, p. 14.Google Scholar
  6. [6]
    M. L. B. Rao and R. F. Drake,J. Electrochem. Soc. 116, 3 (1969) 334.Google Scholar
  7. [7]
    J. R. Rao, G. Richter, F. v. Sturm, E. Weidlich and M. Wenzel,Biomedical Engineering 9 (1974) 98.Google Scholar
  8. [8]
    J. R. Rao and G. Richter,Naturwissenschaften 61 (1974) 200.Google Scholar

Copyright information

© Chapman and Hall Ltd. 1976

Authors and Affiliations

  • U. Gebhardt
    • 1
  • J. R. Rao
    • 1
  • G. J. Richter
    • 1
  1. 1.Forschungslaboratorien der Siemens AGErlangenGermany

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