التفاصيل البيبلوغرافية
| العنوان: |
Inherent emf relaxation of electrochemical cells with nanocrystalline Ag electrodes |
| المؤلفون: |
Schröder, Alexandra1, Fleig, Jürgen1, Maier, Joachim1 Sofia.Weiglein@fkf.mpg.de, Sitte, Werner2 |
| المصدر: |
Electrochimica Acta. May2006, Vol. 51 Issue 20, p4176-4181. 6p. |
| مصطلحات موضوعية: |
*ELECTROCHEMICAL analysis, *SILVER, *ELECTRIC resistors, *CRYSTAL growth |
| مستخلص: |
Abstract: The open circuit voltage of the electrochemical cell Ag (nano)|solid silver electrolyte|Ag (macro) is found to be inherently unstable. Even under conditions which support the morphological stability of the arrangement of nanocrystalline silver, the particles grow significantly as soon as they function as electrodes; i.e. when they are in contact with a silver electrolyte and connected electronically at the same time. The process is shown to be due to electrochemical Ostwald ripening with the interfacial transfer of Ag+ through the Ag/electrolyte interface being the rate limiting step. Its activation energy is 0.01eV. The decay is in good agreement with modelling results. [Copyright &y& Elsevier] |
| قاعدة البيانات: |
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