Journal article
H/D isotope effects in high temperature proton conductors
The atomic mass ratio of ca. 2 between deuterium and hydrogen is the highest for any pair of stable isotopes and results in significant and measurable H/D isotope effects in high temperature proton conductors containing these species. This paper discusses H/D isotope effects manifested in O-H/O-D vibration frequencies, the mobility of H+/D+ carriers, the kinetics of the electrochemical oxidation of H2/D2, the solubilities of H2O/D2O and, finally, the spontaneous electromotive force that appears across H2/D2 cells with proton conducting electrolytes.
Comparable work on tritium-exchanged materials is also discussed. The results highlight the usefulness of isotope effects in the study of high temperature proton conductors.
| Language: | English |
|---|---|
| Year: | 2015 |
| Pages: | 9-13 |
| ISSN: | 18727689 and 01672738 |
| Types: | Journal article |
| DOI: | 10.1016/j.ssi.2015.03.028 |
| ORCIDs: | Bonanos, Nikolaos |
Atomic mass Carrier mobility Deuterium Electrochemical oxidation High temperature proton conductor Hydrogen Isotope effect Isotopes Proton conductor Isotope effect Hydrogen Deuterium Tritium Zero point energy Proton conductors Proton-conducting electrolyte Protons Stable isotopes Tritium Vibration frequency Zero-point energies
