The deposition and reoxidation of lithium on gold in the underpotential range from acetonitrile solutions with small amounts of water
✍ Scribed by D. Wagner; H. Gerischer
- Book ID
- 103062790
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- English
- Weight
- 527 KB
- Volume
- 34
- Category
- Article
- ISSN
- 0013-4686
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✦ Synopsis
Voltammetric and coulometric studies of the underpotential deposition of lithium on gold electrodes have been carried out. The deposition begins at an underpotential of about 1.6 V, but the deposited lithium reacts with the small amounts of water present in the electrolyte and a lithium hydroxide layer is formed. This hydroxide layer stabilizes a lithium hydride monolayer which is formed underneath at more negative potentials but still before bulk lithium can be deposited. This hydride layer, however, contains some excess of lithium which can form an alloy with the gold substrate. The kinetics of the deposition and the reoxidation processes are discussed.