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Temperature: a nonnegligible factor for the formation of a structurally stable, self-assembled reduced graphite oxide hydrogel

机译:温度:形成结构稳定的自组装还原氧化石墨水凝胶的不可忽略的因素

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摘要

The three-dimensional (3D) architecture of reduced graphite oxide (rGO) hydrogels is of interest in applications such as supercapacitors, soft machines and regenerative medicine, etc. The structural stability of the rGO hydrogel is the foundation for these applications. However, little attention has been paid to this issue. Here, the structural and performance stabilities of rGO hydrogels prepared at different temperatures were investigated in detail. It was found that 40 degrees C was the most effective condition for the reduction of graphite oxide, as the reducibility of vitamin C was embodied successfully and the network of the rGO hydrogel was formed. The rGO hydrogel prepared at 40 degrees C showed the best structural stability with time, the lowest electrical resistance and the highest mechanical strength. These results provide guidance for the synthesis of structurally stable rGO hydrogels and their further applications in electrical devices.
机译:还原型氧化石墨(rGO)水凝胶的三维(3D)结构在诸如超级电容器,软机和再生医学等应用中受到关注。rGO水凝胶的结构稳定性是这些应用的基础。但是,对此问题很少关注。在这里,详细研究了在不同温度下制备的rGO水凝胶的结构和性能稳定性。发现40℃是还原氧化石墨的最有效条件,因为维生素C的还原性得以成功体现,并且rGO水凝胶网络形成。在40摄氏度下制备的rGO水凝胶显示出随时间变化的最佳结构稳定性,最低的电阻和最高的机械强度。这些结果为结构稳定的rGO水凝胶的合成及其在电气设备中的进一步应用提供了指导。

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