节点文献
Al代α-Ni（OH）2的结构与电化学性能
The Structure and Electrochemical Performance of Al-doped α-Ni（OH）2
【摘要】 采用化学共沉积法制备了Al代α-Ni（OH）2并对其结构和电化学性能进行了研究。采用XRD,IR,SEM和TGA等方法研究了其结构特征和热稳定性,采用循环伏安法研究了所制备的α-Ni（OH）2的电化学性能。结果表明:采用25mol％的Al取代的方法得到的晶体结构为α-Ni（OH）2,且试样可以在碱性溶液中稳定存在。与β-Ni（OH）2相比,其具有较大的扩散系数,电极反应受扩散控制。
【Abstract】 Al-substituted a-Ni(OH)2 was synthesized by chemical co-precipitation and its structure and thermal stability were studied through XRD, IR, SEM and TGA. The electrochemical properties were studied by cyclic voltammetric method. The results show that the 25mol% Al-substituted Ni(OH)2 is a-Ni(OH)2 and stable in alkali solution. Compared with )3-Ni(OH)2, the proton diffusion coefficient for a-Ni (OH)2 prepared in this paper is higher and the electrode reaction is controlled by the diffusion.
【关键词】 α-Ni（OH）2；
循环伏安；
电化学性能；
【Key words】 a-Ni(OH)2； cyclic voltammetry； electrochemical performance；
【Key words】 a-Ni(OH)2； cyclic voltammetry； electrochemical performance；
- 【文献出处】 稀有金属材料与工程 ,Rare Metal Materials and Engineering , 编辑部邮箱 ,2003年10期
- 【分类号】O614
- 【被引频次】16
- 【下载频次】175