阴离子盐对电泳沉积制备石墨烯薄膜的影响研究
关键词：阴离子盐；电泳沉积；石墨烯
The study of anionic salt’s impact of electrophoretic deposition of graphene film
Abstract: As an allotrope of carbon,graphene has become a research hotspot due to its unique two-dimensional structure and excellent mechanical,electrical,optical and thermal properties.Graphene nanosheet(GNS) films were deposited on Cu substrates using electrophoretic deposition.The effect of different anionic salts on the thickness,morphology and structure of the GNS film was investigated by using scanning electron microscope and Ramam spectrum.The effects on morphology structure of GNS films by different EPD parameters,including deposition temperature,deposition time and deposition voltage were studied systematically to obtain the optimum conditions.The experimental results showed that graphene films prepared by Mg(NO3)2•6H2O are best.Graphene films prepared by MgSO4•6H2O are poor.It was unable to deposit the graphene films.The GNS film electrophoretically deposited for 2 min at a deposition voltage of 100 V and a deposition temperature of 40℃ is smooth and uniform.
KeyWords：anionic salt;electrophoretic deposition;graphene
目录
1 引言 1
1.1 石墨烯简介 1
1.1.1 石墨烯的发现史和特性 2
1.1.2 石墨烯的制备方法 3
1.1.3 石墨烯的结构表征技术 6
1.1.4 石墨烯的应用前景 7
1.2 液相超声剥离法制备石墨烯分散液 8
1.3 电泳沉积制备石墨烯薄膜 9
1.4 研究目的 10
1.5 研究内容 10
1.6 主要研究方案、技术路线与可行性分析 10
2 实验部分 12
2.1 实验仪器、试剂与材料 12
2.1.1 主要实验仪器 12
2.1.2 主要试剂与材料 12
2.2 石墨烯薄膜的制备装置 12
2.3 石墨烯的制备 13
2.3.1 石墨烯分散液的制备 13
2.3.2 石墨烯薄膜的制备 13
2.3.3 MgCl2•6H2O、Mg(NO3)2•6H2O和MgSO4•6H2O三种阴离子盐对沉积石墨烯薄膜的影响 13
2.3.4 水洗工艺前后的对比 14
2.3.5 电泳温度的选择 14
2.3.6 电泳时间的选择 14
2.3.7 电泳电压的选择 14
2.4 电泳沉积石墨烯薄膜的表征 14
2.4.1 拉曼光谱（Raman） 14
2.4.2 扫描电子显微镜（SEM） 15
3 结果与讨论 16
3.1 MgCl2•6H2O、Mg(NO3)2•6H2O和MgSO4•6H2O三种阴离子盐对沉积石墨烯薄膜的影响 16
3.2 水洗工艺前后的对比 17
3.3 沉积石墨烯电泳温度的选择 17
3.4 沉积石墨烯电泳时间的选择 19
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