摘要在世界范围内,石墨烯基杂化纳米材料吸引了越来越多的兴趣。受益于他们化学成分和协同作用的电化学催化性能对催化功能的影响,这些石墨烯基纳米材料将在新型电催化剂的前沿创新发挥重要的作用。我们总结了石墨烯基复合纳米材料的在控制形状、尺寸和结构方面的设计和合成的最近进展情况。进而合成了一系列γ-三氧化二铁与聚苯胺-石墨烯的多级杂化纳米结构材料,得到了合成度高,负载良好的以铁氧化物为活性中心的电催化传感电极材料,并利用一系列测试手段对材料结构进行了表征,同时对亚硝酸盐离子进行了电化学检测,并表现了较高的检测灵敏度。43208
关键词:石墨烯,γ-三氧化二铁,聚苯胺,电化学传感
毕业论文设计说明书外文摘要
Title Preparation of electrocatalytic electrode materials for iron oxide as active center
Abstract
Graphene based hybrid nanomaterials have attracted more and more interest in the world. Benefit from their chemical composition and synergistic effect of the electrochemical catalytic performance on the catalytic function of these graphene based nano materials will play an important role in the innovation of the new type of electro catalyst. We summarize the recent progress in the design and synthesis of graphene based composites in terms of shape, size, and structure. And synthesized a series of gamma ferric oxide and polyaniline graphite ene multilevel hybrid nanostructured materials, the synthesis of high load good with iron oxide as the active center of electrocatalytic sensing electrode materials, and the a series of tests were used to characterize the structure of materials, and the electrochemical detection of nitrite ion, and the performance of the high detection sensitivity.
Keywords Graphene, γ-Fe2O3, Polyaniline, Electrochemical
目 次
1. 绪论 1
1.1 亚硝酸盐 1
1.2 石墨烯 3
1.2.1 石墨烯的发现 3
1.2.2 石墨烯的结构特点 3
1.2.3 石墨烯的制备 4
1.2.4 石墨烯的功能化 5
1.3 石墨烯基纳米复合材料 5
1.3.1 碳/金属(金属氧化物)复合材料 6
1.3.2 石墨烯掺杂非金属复合材料 6
1.3.3 过渡金属氧化物/石墨烯复合材料 8
2. 以铁氧化物为活性中心的复合电极材料的制备 9
2.1 引言 9
2.2 实验药品与仪器 9
2.3 氧化还原法制备石墨烯 10
2.4 磁性三氧化二铁的制备 11
2.3.1 制备方法 11
2.3.2 实验步骤 11
2.5 石墨烯-γ三氧化二铁的制备 11
2.4.1 制备方法 11
2.4.2 实验步骤 12
2.6 聚苯胺掺杂石墨烯复合材料的制备 12
2.5.1 制备方法 12
2.5.2 聚苯胺石墨烯的制备