Abstract The transport of ionic species in nano-fluidic channels has recently attracted tremendous interest in various research areas. This is because extraordinary nanoscale transport phenomena have been achieved in these materials, including ultrafast and highly selective ion movement. A variety of organic and inorganic materials have been employed to construct nano-channels or nano-pores with controlled sizes and dimensions. In particular, because of its unique two-dimensional planar architecture, as well as the possession of numerous oxygenated functionalities, GO has emerged as a promising building block for high-performance nano-fluidic ion channels. The simple exfoliation-reconstruction approach can readily assemble individual GO sheets into a free-standing, layered, film-like structure. In addition to its utilization as a versatile solid support for nano-fluidic ion transport, GO can play different but positive roles as a filler in composite electrolytes, as a mixed proton/electron conductor, and as a selective ion permeation membrane. Herein, we summarize the recent advances in the transport of ionic species within GO-based electrolytes. Moreover, the perspectives and current challenges of this promising field are discussed.

中文翻译：

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氧化石墨烯中的电荷传输

摘要 纳米流体通道中离子物质的传输最近引起了各个研究领域的极大兴趣。这是因为在这些材料中已经实现了非凡的纳米级传输现象，包括超快和高选择性离子运动。各种有机和无机材料已被用于构建具有受控尺寸和尺寸的纳米通道或纳米孔。特别是，由于其独特的二维平面结构，以及拥有众多氧化功能，GO 已成为高性能纳米流体离子通道的有前途的构建块。简单的剥离-重建方法可以很容易地将单个 GO 片组装成独立的、分层的、薄膜状结构。除了用作纳米流体离子传输的多功能固体载体外，GO 还可以作为复合电解质中的填料、混合质子/电子导体和选择性离子渗透膜发挥不同但积极的作用。在此，我们总结了基于 GO 的电解质中离子物质传输的最新进展。此外，还讨论了这个有前途的领域的前景和当前挑战。