降低氧化石墨烯表面上的Ni纳米粒子在超临界的异醇中合成
Yulia Ioni1, Anna Popova1, Sergey Maksimov2
1Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, 119991 Moscow, Russia.
Nanomaterials (Basel, Switzerland)
|November 24, 2023
概括
研究人员开发了一种使用超临界异醇制造均-石墨烯纳米复合材料的新方法. 这一过程确保纳米粒子在减少的石墨烯氧化物上得到很好的分散,用于先进的应用.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术纳米技术
- 化学 化学 化学
背景情况:
- 铁磁纳米粒子和石墨烯材料的纳米复合材料对于催化,传感器和吸收至关重要.
- 在降解氧化石墨烯 (rGO) 基板上确保纳米粒子分散性和同质性对于所需的产品特性至关重要.
研究的目的:
- 引入一种新的,可复制的方法来制造纳米粒子/减少氧化石墨烯 (Ni/rGO) 纳米复合材料.
- 通过超临界流体处理研究离子的同时减少和石墨烯氧化物的脱氧.
主要方法:
- 石墨烯氧化物薄膜的超临界异醇处理与内置的Ni2+盐.
- 使用X射线衍射 (XRD),里埃变换红外光谱 (FTIR),拉曼光谱,传输电子显微镜 (TEM) 和高分辨率TEM (HRTEM) 的表征.
主要成果:
- 对Ni/rGO复合制剂的可复制方法进行了证明.
- 超临界异醇治疗同时降低了Ni2+到Ni(0) 并去氧化了石墨烯氧化物基质.
- 由此产生的复合膜在rGO表面均分布的27nm纳米颗粒上表现出磁性.
结论:
- 超临界异醇处理为制造磁性Ni/rGO纳米复合材料提供了一个有效的途径.
- 该方法确保了纳米颗粒在rGO基板上的良好的分散性和同质性.
- 需要对超临界异甲醇的复合材料制造机制进行进一步的研究.
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