Ni-Co双金属氧化物纳米结构制备及其在超级电容器中的应用  

Preparation of Ni-Co Bimetallic Oxide Nanostructures and Its Applications in Supercapacitors

作　　者：张慧[1] 李莎[1] 刘畅[1] 李朗[1] 万厚钊[1] 王浩[1] ZHANG Hui LI Sha LIU Chang LI Lang WAN Hou-zhao WANG Hao(Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Hubei Key Laboratory of Ferro ＆ Piezoelectric Materials and Devices, Faculty of Physics and Electronic Science, Hubei University, Hubei Wuhan 450062, Chin)

机构地区：[1]湖北大学物理与电子科学学院铁电压电材料与器件湖北省重点实验室,湖北武汉430062

出　　处：《广州化工》2017年第15期54-56,81,共4页GuangZhou Chemical Industry

基　　金：湖北省自然科学基金青年基金项目(过渡金属硫化物中空纳米结构及其阵列的储能机理研究No.2016CFB102)

摘　　要：超级电容器作为一种新型的储能器件,近年来已经成为电化学储能领域的研究热点。在各种电极材料中,过渡金属氧化物是较理想的选择,这是由于它们在电极/电解液界面可发生快速可逆的法拉第氧化还原反应。本文采用水热法通过调剂反应源镍、钴元素的比例获得不同比例的Ni-Co双金属氧化物纳米棒。结果表明,双金属氧化物Co1.29Ni1.71O4和NiCo_2O_4双金属氧化物的比电容值明显高于单金属NiO和Co_3O_4,表现出较好的倍率特性。因此,双金属氧化物的实施为解决过渡金属氧化物循环性能和倍率特性不足的问题提供了一条新的途径。Supercapacitor has become a research hotspot in the field of electrochemical energy storage in recent years as a new kind of energy storage device. In a variety of electrode materials, transition metal oxide is an ideal choice. This is due to their rapid reversible faraday oxidation- reduction reaction at the electrode/electrolyte interface. Different proportions of Ni-Co bimetallic oxide nanorods were obtained by hydrothermal method by adjusting the ratio of nickel and cobalt. The results showed that the specific capacitance of bimetallic oxide Co1.29 Ni1.71 04 and NiCo2O4 was obviously higher than that of single metal NiO and Co3O4, which showed a better ratio characteristics. Therefore, the implementation of bimetallic oxide provided a new way to solve the problem of transition metal oxide cycle performance and insufficient ratio characteristics.

关 键 词：镍钴氧化物 纳米棒 电极材料 超级电容器 

分 类 号：TQ152[化学工程—电化学工业]