1. Influence of PEG Stoichiometry on Structure-Tuned Formation of Self-Assembled Submicron Nickel Particles.
- Author
-
Pu, Bingxue, Wang, Liping, Guo, Heng, Yang, Jian, Chen, Haiyuan, Zhou, Yajun, Yang, Jin, Zhao, Bin, and Niu, Xiaobin
- Subjects
- *
NICKEL compounds synthesis , *MAGNETIZATION , *THERMAL stability , *SCANNING electron microscopy , *X-ray diffraction , *THERMOGRAVIMETRY - Abstract
Self-assembled submicron nickel particles were successfully synthesized via the one-step surfactant-assisted solvothermal method. The impact of surfactant and reducing agent stoichiometry is investigated in this manuscript. Different morphologies and structures of Ni particles, including flower-like nanoflakes, hydrangea-like structures, chain structures, sphere-like structures, and hollow structures were prepared through different processing conditions with two parameters such as temperature and time. Based on scanning electron microscopy (SEM), X-ray diffraction (XRD), thermal gravimetric analysis (TGA) and vibrating sample magnetometry (VSM), the submicron nickel particles show good saturation magnetization and excellent thermal stabilities with a possible growth mechanism for the variety of the structure-tuned formation. Importantly, the microwave absorption properties of the submicron nickel particles were studied. The lowest reflection loss of Ni-P9/T200/H15 with a thin layer thickness of 1.7 mm can reach -42.6 dB at 17.3 GHz. [ABSTRACT FROM AUTHOR]
- Published
- 2018
- Full Text
- View/download PDF