Electrochemical reaction of nanocrystalline Co3O4 thin film with Lithium
| Autor: | Zheng-Wen Fu, Qi-Zong Qin, Ye Zhang, Ying Wang |
|---|---|
| Rok vydání: | 2004 |
| Předmět: |
Materials science
Scanning electron microscope Analytical chemistry chemistry.chemical_element General Chemistry Condensed Matter Physics Electrochemistry Nanocrystalline material Pulsed laser deposition chemistry Chemical engineering X-ray photoelectron spectroscopy General Materials Science Lithium Cyclic voltammetry Thin film |
| Zdroj: | Solid State Ionics. 170:105-109 |
| ISSN: | 0167-2738 |
| DOI: | 10.1016/j.ssi.2004.02.020 |
| Popis: | The electrochemical reaction of lithium and nanocrystalline Co 3 O 4 thin films fabricated by reactive pulsed laser deposition was investigated using X-ray diffraction, scanning electron microscopy, X-ray photoelectron spectroscopy, cyclic voltammetry and galvanostatic measurements. Our new finding is that during the first discharge process of nanocrystalline Co 3 O 4 film-based lithium cell Co 3 O 4 thin film reacts with lithium and forms nano-sized metallic Co and Li 2 O, but after charging to 3.0 V CoO instead of Co 3 O 4 is generated and the subsequent discharge/charge processes are reversible. A reaction mechanism of nanocrystalline Co 3 O 4 thin film with lithium is proposed. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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