一种无校准的光学发射光谱方法来确定用于AuAg二元纳米粒子合成的火花放电等离子体的组成
Attila Kohut1, Lajos Péter Villy1, Gergely Kohut2
1Department of Optics and Quantum Electronics, University of Szeged, Szeged, Hungary.
Applied spectroscopy
|October 30, 2023
概括
火花放电发生器使用火花除产生纳米粒子. 一种新的光学发射光谱法量化了火花等离子体中的原子混合,这对于合金纳米粒子合成至关重要.
科学领域:
- 材料科学与工程 材料科学与工程
- 等离子体物理学的物理.
- 纳米技术纳米技术
背景情况:
- 火花放电发生器 (SDGs) 对于连续,可扩展的纳米粒子合成,包括合金,是有效的.
- 了解电极切除过程中的原子混合是优化合金纳米粒子形成的关键,特别是对于不相似的材料.
- 光学发射光谱 (OES) 是分析火花等离子体的宝贵工具,但需要进行定量成分分析.
研究的目的:
- 开发和验证一种无校准的光学发射光谱学 (OES) 方法,用于在二元纳米粒子生成中进行定量等离子体组成分析.
- 用新型OES方法研究火花等离子体中的原子混合过程.
- 为了证明该方法对与等离子体研究相关的合金金银 (AuAg) 系统的适用性.
主要方法:
- 引入无校准的OES方法,使用多元组合的博尔茨曼图.
- 该方法使用不同元素的原子排放线的强度比来估计数度比.
- 使用合成光谱和来自合金AuAg电极的实验性火花光谱进行验证.
主要成果:
- 拟议的多元组合博尔茨曼图形法允许直接估计火花等离子体中总数度比.
- 该方法通过合成数据成功测试,并使用AuAg合金进行实验验证.
- 该研究证明了OES技术的稳定性和能力,用于定量分析火花等离子体组成.
结论:
- 开发的无校准OES方法提供了对火花除过程中原子混合的定量见解.
- 该技术增强了使用火花放电发生器合成合金纳米粒子的理解和控制.
- AuAg系统作为一个强大的验证案例,突出了该方法对各种材料组合的潜力.
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