کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1490702 | 992330 | 2005 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Structure and electrochemical performance of nickel hydroxide synthesized by rapid quench method Structure and electrochemical performance of nickel hydroxide synthesized by rapid quench method](/preview/png/1490702.png)
Nickel hydroxide with amorphous structure has been synthesized successfully by chemical precipitation method combined with rapid quench technique. The microstructure and morphology of the prepared samples were analyzed by XRD, Raman spectra, IR spectra, and SEM. The electrochemical performance of the sample was characterized by cyclic voltammetry, electrochemical impedance spectroscopy, and charge/discharge tests. The discharge capacity of the amorphous nickel hydroxide is 330.0 mAh g−1 at 0.2C, much higher than that of the theoretical capacity of β-nickel hydroxide (289.0 mAh g−1). Moreover, the amorphous nickel hydroxide exhibits higher electrochemical reaction reversibility, lower electrochemical impedance, and better cyclic stability compared with β-nickel hydroxide.
Journal: Materials Research Bulletin - Volume 45, Issue 12, December 2010, Pages 2001–2005