氮和氧在气相合成银纳米颗粒成核和生长中的作用

IF 5.8 3区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Nanoscale Pub Date : 2025-06-25 DOI:10.1039/d5nr01526j

Salomé Trillot, Patrizio Benzo, Sophie Barre, Nathalie Tarrat, Magali Benoit, Kremena Makasheva, Caroline Bonafos

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引用次数: 0

摘要

在本研究中，我们在气相中合成了银纳米粒子（AgNPs），并探索了少量反应气体对其结构性质的影响。通过原子分辨率的透射电子显微镜（TEM）和原位发射光谱相结合的方法，研究了银在气相中的成核机制。我们的研究结果表明，离子诱导成核机制在引入少量氧气（低于0.5%）后观察到的AgNP表面密度显著增加中起关键作用。这些结果为反应气体对纳米颗粒形成的影响提供了关键的见解，并强调了在等离子体环境中驱动纳米颗粒成核的机制

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Role of Nitrogen and Oxygen in the nucleation and growth of Silver Nanoparticles in gas-phase synthesis

In this study, we synthesized silver nanoparticles (AgNPs) in the gas phase and explored the influence of a small amount of reactive gases on their structural properties. Through a combined approach of transmission electron microscopy (TEM) with atomic resolution and in situ optical emission spectroscopy, we investigated the nucleation mechanisms of silver in the gas phase. Our findings put forward the ion-induced nucleation as mechanisms playing a pivotal role in the significant increase in AgNP surface density observed upon the introduction of a small amount of oxygen (below 0.5%). These results provide key insights into on the impact of reactive gases on nanoparticles formation and underline the mechanism driving their nucleation in plasma environments

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来源期刊

Nanoscale CHEMISTRY, MULTIDISCIPLINARY-NANOSCIENCE & NANOTECHNOLOGY

CiteScore

12.10

自引率

3.00%

发文量

1628

审稿时长

1.6 months

期刊介绍： Nanoscale is a high-impact international journal, publishing high-quality research across nanoscience and nanotechnology. Nanoscale publishes a full mix of research articles on experimental and theoretical work, including reviews, communications, and full papers.Highly interdisciplinary, this journal appeals to scientists, researchers and professionals interested in nanoscience and nanotechnology, quantum materials and quantum technology, including the areas of physics, chemistry, biology, medicine, materials, energy/environment, information technology, detection science, healthcare and drug discovery, and electronics.