Kinetics and Catalysis ( IF 1.3 ) Pub Date : 2021-08-19 , DOI: 10.1134/s0023158421040066 Yu. V. Larichev 1, 2
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Abstract
A new procedure for studying the sizes of metal nanoparticles in supported catalysts by dynamic light scattering (DLS) is proposed. The applicability of DLS to the determination of the particle sizes of active components in a set of different supported metal catalysts, which were previously characterized by TEM and XRD analysis, was found. A good agreement between data obtained using different methods was demonstrated. The application of the new approach makes it possible to reliably identify large nanoparticles, which are often difficult to identify reliably using standard methods due to their small amount in the samples. The procedure proposed is characterized by high rapidity, and it allows one to obtain information on particle sizes 20–30 min after the start of analysis.
中文翻译：
用于研究负载金属催化剂的动态光散射
摘要
提出了一种通过动态光散射 (DLS) 研究负载型催化剂中金属纳米颗粒尺寸的新方法。发现了 DLS 可用于测定一组不同负载金属催化剂中活性组分的粒径，这些催化剂先前已通过 TEM 和 XRD 分析进行表征。证明了使用不同方法获得的数据之间的良好一致性。新方法的应用使得可靠地识别大型纳米颗粒成为可能，而这些大型纳米颗粒通常难以使用标准方法可靠地识别，因为它们在样品中的含量很少。所提出的程序的特点是快速，它允许人们在分析开始后 20-30 分钟获得有关颗粒大小的信息。
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