Fabrication of Zirconium Nitride Sintered Bodies and the Application for Electrode Materials
| Autor: | Hidehiko Kobayashi, Takashi Mitamura, Tomohiko Ogata, Hirokuni Hoshino |
|---|---|
| Rok vydání: | 1989 |
| Předmět: |
Tafel equation
Materials science Metallurgy General Chemistry Zirconium nitride Condensed Matter Physics Electrochemistry chemistry.chemical_compound Chemical engineering chemistry visual_art Electrode Materials Chemistry Ceramics and Composites visual_art.visual_art_medium Relative density Ceramic Cyclic voltammetry Polarization (electrochemistry) |
| Zdroj: | Journal of the Ceramic Society of Japan. 97:1189-1194 |
| ISSN: | 1882-1022 0914-5400 |
| DOI: | 10.2109/jcersj.97.1189 |
| Popis: | The electrochemical behavior of ZrN in 1M H2SO4, 1M Na2SO4 and 1M NaOH solutions was investigated using cyclic voltammetry. A fine ZrN powder with the average particle size of 26nm was synthesized by the reduction-nitridation of ZrO2 in the presence of Mg, and hot-pressed under 20MPa at 1400° to 1900°C for 1h. Ceramics with the relative density of 93% were obtained by hot-pressing at 1480°C, and the electrical resistivity was nearly equal to that of Ti. Since the ZrN electrodes showed a stable and reproducible voltammogram under cathodic polarization, the hydrogen evolution potential and Tafel's slope were examined. On the other hand, under anodic polarization the electrodes showed the dissolution of ZrN and a passive state. |
| Databáze: | OpenAIRE |
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