论文部分内容阅读
采用AAO模板及后处理方法合成了圆盘状α-Co(OH)2并研究了其电化学电容性能.在该合成方法中,先采用阳极氧化铝模板结合交流电沉积的方法获得钴纳米线,而后将其在碱液中通过溶解氧氧化生成终端产物.用红外光谱(FT-IR),X射线衍射(XRD)和场发射扫描电子显微镜(FE-SEM)表征了产物的结构和形貌;用循环伏安、恒电流充放电测试方法对其电化学性能进行了测试.此外,对圆盘状Co(OH)2的形成机理进行了初步探讨.结果表明,用此方法合成的Co(OH)2具有圆盘状形貌,属α相态,且表现出较好的电容特性.
The disc-shaped α-Co (OH) 2 was synthesized by AAO template and the post-treatment method, and its electrochemical capacitance performance was studied.In this method, anodic alumina template and AC deposition were used to obtain cobalt nanowires, The product was then oxidized to the end product by dissolved oxygen in alkaline solution.The structure and morphology of the product were characterized by FT-IR, XRD and FE-SEM. The electrochemical performance was tested by cyclic voltammetry and galvanostatic charge-discharge test. In addition, the formation mechanism of disc-shaped Co (OH) 2 was also discussed. The results show that Co (OH) ) 2 has a disk-like morphology, which belongs to the α phase state and shows better capacitance characteristics.