Preparation and Modification of Synthetic Graphene from Biomolecule-based Carbon Nanodots

在最初的提案中，我概述了一个工作计划，包括三个目标，即鉴定和表征具有明确电化学特性的碳基点，并测试它们在超级电容器和闪存设备中的潜力。在追求这一目标的过程中，我已经取得了很有希望的结果，为进一步的研究打开了大门。简而言之，我使用碳纳米点（CNDs）作为具有有趣电化学性质的三维涡轮层石墨烯（3d -ts-石墨烯）网络的前体。据我们所知，这是第一个由生物分子合成的高质量3d -ts-石墨烯网络的例子。在第一个资助期的后半段，我将测试3d -ts-石墨烯在电子电路和闪存等新电子应用方面的应用。在接下来一年的时间里，我将寻找新的方法来修饰3d -ts-石墨烯的形态。这将通过选择新的起始原料和改变反应条件来实现。因此，诸如缺陷密度、孔径和活性表面积等参数将被调整。由此获得的反应机制的见解和Kaner小组的专业知识将用于研究在铜表面合成2d -石墨烯的方法。最后，将制作和测试具有金属和金属氧化物簇的复合材料，用于电荷存储应用。

In the initial proposal, I outlined a workplan including three objectives, namely, the identification and characterization of carbon based dots with defined electrochemical properties, and testing their potential in supercapacitors and in flash memory devices. In pursuit of this goal, I have achieved promising results which open the door for further research. Briefly, I used carbon nanodots (CNDs) as precursors for three-dimensional turbostratic graphene (3D-ts-graphene) networks with interesting electrochemical properties. To the best of our knowledge, this is the first example of high quality 3D-ts-graphene networks synthesized from biomolecules. Within the second half of the first funding period I will test 3D-ts-graphene towards new electronic applications such as electronic circuits and Flash memories. In the follow-up period of one year, I will identify new methods to modify the morphology of the 3D-ts-graphene. This will be done by selecting new starting materials and modification of the reaction conditions. Thereby, parameters such as defect density, pore size, and active surface area will be tuned. Insights into the reaction mechanism thus obtained and the expertise in the Kaner group will be used to study approaches to synthesize 2D-graphene on copper surfaces. Finally, composite materials with metals and metal oxide clusters will be fabricated and tested towards charge storage applications.