摘要电极材料作为衡量超级电容器性能的重要因素之一,是研究工作的热点。 如何降低电极材料的成本,并提高电极材料整体的性能,是研究人员一直探索 的课题。基于以上的背景,本论文做了如下的研究:78037
首先,将氮掺杂碳包覆凹凸棒石 ATP@NC 填塞到泡沫镍的孔道中,利用水 热-煅烧法在泡沫镍上负载具有分层结构的 NiCo2O4 纳米棒。通过各类测试手段 对样品的结构、形貌和性能进行表征分析。
然后,采用碳纳米管(CNTs)为泡沫镍网孔的填塞物,利用两步水热法将电 导率优于 NiCo2O4 的 NiCo2S4 负载到泡沫镍上。通过不同测试手段对样品的结 构、形貌和性能进行了表征分析。
毕业论文关键词:超级电容器,氮掺杂,凹凸棒石,泡沫镍,水热法,NiCo2O4,NiCo2S4,CNTs。
Title:Study on preparation and electrochemical performance of electrode composite for supercapacitor
Abstract: Electrode material, one of the most crucial factors restricting the performance of supercapacitor, has been the hot area of research。 How to reduce the cost of electrode material and improve the whole property of material is always the researchers’ issue。 Based on the background above, the main contents of work in this paper are summarized as follow:
Firstly, ATP@NC was firstly filled in the partial channels of nickel foam and then NiCo2O4 nanorods with a layer structure supported by Ni foam was prepared via hydrothermal - calcination strategy。 The morphology, structure and properties were characterized by multiple test methods。
Additionally, carben nanotubes(CNTs) were used as the filler of mesh on nickel foam, NiCo2S4 which is superior to NiCo2O4 in conductivity was loaded successfully on nickel foam via two-step hydrothermal method。 The morphology, structure and properties of samples were also characterized by multiple test methods。
Key words: supercapacitor, nitrogen-doped, attapulgite, nickel foam, hydrothermal method, NiCo2O4, NiCo2S4, CNTs。
目 录
1。绪论 1
1。1引言 1
1。2超级电容器的工作原理及结构 1
1。2。1赝电容器 1
1。2。2超级电容器的结构 2
1。3超级电容器电极材料的研究进展 2
1。3。1过渡金属氧化物 3
1。3。2过渡金属硫化物 4
1。4本课题的主要研究内容 4
2。ATP@NC填塞泡沫镍负载NiCo2O4的制备及电化学性能研究 6
2。1引言 6
2。2实验部分 6
2。2。1实验原料 6
2。2。2实验仪器 7
2。2。3实验步骤 7
2。2。4表征与测试 8
2。3结果与讨论 10
2。3。1形貌分析 10
2。3。2XRD分析 12
2。3。3电化学性能分析 14
2。4小结 17
3。CNTs填塞泡沫镍负载NiCo2S4的制备及电化学性能研究 19
3。1引言