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Acid–Base Chemistry and Proton Conductivity

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High Temperature Polymer Electrolyte Membrane Fuel Cells

Abstract

Acid–base chemistry deals with proton transfer from an acid to a base and represents an effective approach to the development of proton conducting materials. The acidity difference (ΔpK a) of the two components dictates the extent of proton transfer and therefore the ionicity and other properties of an acid–base system. Only an appropriate acidity matching allows for formation of extensive hydrogen bond networks which in turn promotes the proton dynamics and Grotthuss mechanism of the proton conductivity. To frame the hypothesis initial effort is made to compile information of acid–base systems including aqueous solutions, ionic liquids, solid crystals, acid-doped basic polymers, base-doped acidic polymers as well as inorganic solid acids. Upon further validation, the insight might open vision to avenues of material sciences in the field of proton conducting materials.

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Acknowledgments

This work was financially supported by Innovation Fund Denmark (4M Centre 0603-00527B) and Danish Council for Independent Research, Technology and Production Science (no.11-117035/FTP).

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Authors and Affiliations

  1. Section of Proton Conductors, Department of Energy Conversion and Storage, Technical University of Denmark, Kemitorvet 207, 2800, Lyngby, Denmark

    Qingfeng Li, David Aili & Jens Oluf Jensen

  2. Department of Chemical Engineering, Case Western Reserve University, Cleveland, OH, 44106, USA

    Robert F. Savinell

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  1. Qingfeng Li
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  2. David Aili
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  4. Jens Oluf Jensen
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Correspondence to Qingfeng Li .

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Editors and Affiliations

  1. Department of Energy Conversion and Storage, Technical University of Denmark, Lyngby, Denmark

    Qingfeng Li

  2. Department of Energy Conversion and Storage, Technical University of Denmark, Lyngby, Denmark

    David Aili

  3. Danish Power Systems, Kvistgård, Denmark

    Hans Aage Hjuler

  4. Department of Energy Conversion and Storage, Technical Univeristy of Denmark, Lyngby, Denmark

    Jens Oluf Jensen

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Li, Q., Aili, D., Savinell, R.F., Jensen, J.O. (2016). Acid–Base Chemistry and Proton Conductivity. In: Li, Q., Aili, D., Hjuler, H., Jensen, J. (eds) High Temperature Polymer Electrolyte Membrane Fuel Cells. Springer, Cham. https://doi.org/10.1007/978-3-319-17082-4_3

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  • DOI: https://doi.org/10.1007/978-3-319-17082-4_3

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