Probing the dynamics of Cu nanoparticle growth inside metal-organic frameworks upon electron beam irradiation

Mezenov Yuri A.; Bruyere Stephanie; Kulachenkov Nikita K.; Yankin Andrei N.; Rzhevskiy Sergey S.; Alekseevskiy Pavel V.; Gilemkhanova Venera D.; Bachinin Semyon V.; Dyachuk Vyacheslav; Krasilin Andrei A.; Zollinger Julien; Belmonte Thierry; Nomine Alexandre; Milichko Valentin A.

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Probing the dynamics of Cu nanoparticle growth inside metal-organic frameworks upon electron beam irradiation

机译：电子束照射时金属 - 有机框架内Cu纳米粒子生长动力学

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Metal-organic frameworks (MOFs) represent a unique platform for fabrication of nanoparticles (NPs) of diverse composition and crystallinity. The growth of NPs from constituent parts of MOFs is usually initiated by external stimuli such as temperature, light and electron irradiation. Herein, the kinetics and NP growth mechanisms remain unexplored. Here, we utilized electron irradiation to initiate the nucleation and growth of crystalline Cu NPs of tunable size from several nanometers to hundreds of nanometers inside MOF as a precursor. Simultaneously, the process of the NPs growth, captured in real time using transmission electron microscope, demonstrates the evolution of their size, shape and spatial distribution. We also analyze the NP growth by the classical kinetic theory taking into account a phase transformation. Our results contribute to crystal engineering and developing of functional MOF-based nanocomposites.

机译：金属有机骨架（MOF）是制备不同成分和结晶度的纳米颗粒（NPs）的独特平台。MOF组成部分的NP生长通常是由温度、光和电子辐射等外部刺激引起的。在此，动力学和NP生长机制仍有待探索。在这里，我们利用电子辐照作为前驱体，在MOF内启动可调谐尺寸从几纳米到数百纳米的结晶铜纳米颗粒的成核和生长。同时，利用透射电子显微镜实时捕捉到的纳米颗粒生长过程显示了它们的大小、形状和空间分布的演变。我们还利用考虑相变的经典动力学理论分析了NP的生长。我们的研究结果有助于晶体工程和功能性MOF基纳米复合材料的开发。

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《Photonics and Nanostructures: Fundamentals and Applications》 |2020年第1期|共6页
作者
Mezenov Yuri A.; Bruyere Stephanie; Kulachenkov Nikita K.; Yankin Andrei N.; Rzhevskiy Sergey S.; Alekseevskiy Pavel V.; Gilemkhanova Venera D.; Bachinin Semyon V.; Dyachuk Vyacheslav; Krasilin Andrei A.; Zollinger Julien; Belmonte Thierry; Nomine Alexandre; Milichko Valentin A.;
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作者单位

ITMO Univ Dept Phys &

Engn Kronverksky Pr 49 St Petersburg 197101 Russia;

ITMO Univ Dept Phys &

Engn Kronverksky Pr 49 St Petersburg 197101 Russia;

ITMO Univ Dept Phys &

Engn Kronverksky Pr 49 St Petersburg 197101 Russia;

ITMO Univ Dept Phys &

Engn Kronverksky Pr 49 St Petersburg 197101 Russia;

ITMO Univ Dept Phys &

Engn Kronverksky Pr 49 St Petersburg 197101 Russia;

ITMO Univ Dept Phys &

Engn Kronverksky Pr 49 St Petersburg 197101 Russia;

ITMO Univ Dept Phys &

Engn Kronverksky Pr 49 St Petersburg 197101 Russia;

ITMO Univ Dept Phys &

Engn Kronverksky Pr 49 St Petersburg 197101 Russia;

ITMO Univ Dept Phys &

Engn Kronverksky Pr 49 St Petersburg 197101 Russia;

ITMO Univ Dept Phys &

Engn Kronverksky Pr 49 St Petersburg 197101 Russia;

Univ Lorraine CNRS IJL F-54000 Nancy France;

Univ Lorraine CNRS IJL F-54000 Nancy France;

ITMO Univ Dept Phys &

Engn Kronverksky Pr 49 St Petersburg 197101 Russia;

ITMO Univ Dept Phys &

Engn Kronverksky Pr 49 St Petersburg 197101 Russia;

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正文语种 eng
中图分类光学;
关键词
Metal-organic framework; Nanoparticles; Crystal growth; Electron microscopy;

机译：金属 - 有机框架;纳米粒子;晶体生长;电子显微镜;

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Probing the dynamics of Cu nanoparticle growth inside metal-organic frameworks upon electron beam irradiation

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