Electrochemistry of Zinc Oxide
Zinc oxide is a semiconducting material and is commonly found in the corrosion products of zinc and its alloys. Many passive films formed on zinc electrodes in various electrolytes have been shown to have some of the semiconducting properties of ZnO, and the semiconducting properties have been found to play an important role in the corrosion behavior of zinc in many situations. However, correlations between the electrochemical behavior of zinc oxide and the corrosion of zinc are still lacking. Also, zinc oxide is notable as one of the most frequently used materials in studies of semiconductor electrochemical and photoelectrochemical phenomena. Much of the early understanding of semiconductor electrochemistry was actually obtained from these studies. It is thus felt that a systematic overview of the electrochemical properties of zinc oxide would be useful not only for a deeper understanding of many zinc corrosion phenomena but also for further research on the semiconducting behavior of zinc oxide itself.
KeywordsPassive Film Zinc Oxide Space Charge Region Space Charge Layer Zinc Electrode
Unable to display preview. Download preview PDF.