Liu Liming, Wang Honghang, Yi Zichuan, Deng Quanrong, Lin Zhidong, Zhang Xiaowen
Zhongshan Branch of State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Zhongshan Institute, Zhongshan 528402, PR China.
Hubei Key Laboratory of Plasma Chemistry and Advanced Materials, Wuhan Institute of Technology, Wuhan 430073, PR China.
Micron. 2018 Feb;105:30-34. doi: 10.1016/j.micron.2017.11.008. Epub 2017 Nov 21.
Bismuth (Bi) nanoparticles are prepared by using NaBi(MoO) nanosheets in the beam of electrons emitted by transmission electron microscope. The formation and growth of Bi nanoparticles are investigated in situ. The sizes of Bi nanoparticles are confined within the range of 6-10nm by controlling irradiation time. It is also observed that once the diameter of nanoparticles is larger than 10nm, the Bi particles are stable as a result of the immobility of large nanoparticles. In addition, some nanoparticles on the edges form nanorods, which are explained as the result of a coalescence process, if the irradiation period is longer than 10min. The in situ research on Bi nanoparticles facilitates in-depth investigations of the physicochemical behavior and provides more potential applications in various fields such as sensors, catalysts and optical devices.
通过在透射电子显微镜发射的电子束中使用NaBi(MoO)纳米片来制备铋（Bi）纳米颗粒。对Bi纳米颗粒的形成和生长进行了原位研究。通过控制辐照时间，Bi纳米颗粒的尺寸被限制在6-10nm范围内。还观察到，一旦纳米颗粒的直径大于10nm，由于大纳米颗粒的固定性，Bi颗粒是稳定的。此外，如果辐照时间超过10分钟，边缘上的一些纳米颗粒会形成纳米棒，这被解释为聚结过程的结果。对Bi纳米颗粒的原位研究有助于深入研究其物理化学行为，并在传感器、催化剂和光学器件等各个领域提供更多潜在应用。
