| 羟基氧化镍的电解制备，结构表征和电化学性能研究 |
| |
| 引用本文： | 孙艳芝,潘军青,万平玉,许淳淳,刘小光.羟基氧化镍的电解制备，结构表征和电化学性能研究[J].中国化学工程学报,2007,15(2):262-267. |
| |
| 作者姓名： | 孙艳芝 潘军青 万平玉 许淳淳 刘小光 |
| |
| 作者单位： | [1]College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China [2]College of Science, Beijing University of Chemical Technology, Beijing 100029, China |
| |
| 摘 要： | NiOOH was prepared by one-step electrolysis of spherical Ni（OH）2 and the effects of electrolysis parameters were examined. The highly pure NiOOH was obtained after electrolysis at a current density of 60mA.g^-1 and 30℃ with anodic potential controlled in the range of 1.73-1.85V （vs. Zn/ZnO） for 360min. The NiOOH samriles were characterized bv X-ray oowder diffraction （XRD） and scanning electron microscope （SEM） analysis.Resuits indicate that the electrolysis product is spherical NiOOH doped with graphite. Charge and discharge tests show that the prepared NiOOH offers a discharge capacity of over 270mAh·g^-1 at current density of 30mA·g^-1 and can be directly used as cathode material of alkaline Zn/NiOOH batteries. Galvanostatic charge/discharge and cyclic voltammetry （CV） tests reveal good cycling reversibility, of the NiOOH electrode.
|
| 关 键 词： | NiOOHNiOOH电极材料 NIOOH 电解制备 结构特性 电化学性能 电流密度 放电能力 |
| 收稿时间： | 12 April 2006 |
| 修稿时间： | 2006-04-122006-09-19 |
Electrolytic Preparation, Structure Characterization and Electrochemical Performance of NiOOH |
| |
| Yanzhi SUN, Junqing PAN, Pingyu WAN, Chunchun XU,Xiaoguang LIU.Electrolytic Preparation, Structure Characterization and Electrochemical Performance of NiOOH[J].Chinese Journal of Chemical Engineering,2007,15(2):262-267. |
| |
| Authors: | Yanzhi SUN Junqing PAN Pingyu WAN Chunchun XU Xiaoguang LIU |
| |
| Affiliation: | 1.College of Materials Science and Engineering, Beijing Umversity of Chemical Technology, Beijing 100029, China;2.College of Science, Beijing University of Chemical Technology, Beijing 100029, China |
| |
| Abstract: | NiOOH was prepared by one-step electrolysis of spherical Ni(OH)2 and the effects of electrolysis parameters were examined.The higly pure NiOOH was obtained after electrolysis at a current density of 60mA·g-1 and 30℃ with anodic potential controlled in the range of 1.73-1.85V (vs.Zn/ZnO) for 360min.The NiOOH samples were characterized by X-ray powder diffraction (XRD) and scanning electron microscope (SEM) analysis.Results indicate that the electrolysis product is spherical NiOOH doped with graphite.Charge and discharge tests show that the prepared NiOOH offers a discharge capacity of over 270mAh·g-1 at current density of 30mA·g-1 and can be directly used as cathode material of alkaline Zn/NiOOH batteries.Galvanostatic charge/discharge and cyclic voltammetry (CV) tests reveal good cycling reversibility of the NiOOH electrode. |
| |
| Keywords: | NiOOH electrolysis current density discharge capacity cycling reversibility |
| 本文献已被 CNKI 维普 万方数据 ScienceDirect 等数据库收录！ |
| 点击此处可从《中国化学工程学报》浏览原始摘要信息 |
|
点击此处可从《中国化学工程学报》下载全文 |
