کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1278097 | 1497641 | 2009 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Effects of surface modifications of the LMNi3.9Co0.6Mn0.3Al0.2 alloy in a KOH/NaBH4 solution upon its electrode characteristics within a Ni–MH secondary battery Effects of surface modifications of the LMNi3.9Co0.6Mn0.3Al0.2 alloy in a KOH/NaBH4 solution upon its electrode characteristics within a Ni–MH secondary battery](/preview/png/1278097.png)
This study examined the effects of surface modifications of the LMNi3.9Co0.6Mn0.3Al0.2 (LM; Lanthanum rich misch metal) alloy in KOH solutions, both with and without NaBH4, on its electrode characteristics in a nickel–metal–hydride (Ni–MH) secondary battery at low and ambient temperatures. The activation behavior, discharge capacity, rate capability, and electrochemical catalytic activity of the alloy were significantly improved by surface treatment with a KOH/NaBH4 solution. This phenomenon is attributable to the alkaline treatment's removal of the oxide film and corrosion products on the surface of the alloy that can hinder surface activation, as well as its formation of a nickel- and cobalt-rich layer that exhibits high catalytic activity on the surface.
Journal: International Journal of Hydrogen Energy - Volume 34, Issue 1, January 2009, Pages 481–486