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首页> 外文期刊>RSC Advances >Green and facile edge-oxidation of multi-layer graphene by sodium persulfate activated with ferrous ions
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Green and facile edge-oxidation of multi-layer graphene by sodium persulfate activated with ferrous ions

机译：用铁离子激活的过硫酸钠的多层石墨烯的绿色和容易边缘氧化

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Effective edge oxidation of graphene with high structural integrity is highly desirable yet technically challenging for most practical applications. In this work, we have developed a green and facile strategy to obtain edge-oxidized graphene with good dispersion stability and high electrical conductivity by exploiting high edge reactivity of highly conductive multi-layer graphene and oxidizing radicals (SO _(4) ~(?) ˙) generated from sodium persulfate (Na _(2) S _(2) O _(8) ) with ferrous ion (Fe ~(2+) ) activation. Owing to high structural integrity of pristine graphene and effective edge oxidation, the obtained edge-oxidized graphene exhibited excellent dispersion stability and satisfactory electrical conductivity ( i.e. ≥240 S cm ~(?1) ). Moreover, the oxidation degree of pristine graphene can be well controlled by adjusting treatment time. The obtained edge-oxidized graphene is expected to find a variety of applications in many fields of anti-static films, energy storage materials, flexible sensors and high-performance nanocomposites.
机译：具有高结构完整性的石墨烯的有效边缘氧化是非常理想的，但对于大多数实际应用而言，在技术上具有挑战性。在这项工作中，我们通过利用高导电多层石墨烯和氧化自由基（如此_（4）〜（如此）用铁离子（Fe〜（2+））激活，从过硫酸钠（Na _（2）S _（2）O _（8））产生的χ）活化。由于原始石墨烯和有效边缘氧化的高结构完整性，所获得的边缘氧化石墨烯表现出优异的分散稳定性和令人满意的导电性（即≥240Scm〜（α1））。此外，通过调节治疗时间可以很好地控制原始石墨烯的氧化程度。预期所获得的边缘氧化石墨烯在抗静电膜，储能材料，柔性传感器和高性能纳米复合材料的许多领域中找到各种应用。

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