Influence of PEG Stoichiometry on Structure-Tuned Formation of Self-Assembled Submicron Nickel Particles

Bingxue Pu; Liping Wang; Heng Guo; Jian Yang; Haiyuan Chen; Yajun Zhou; Jin Yang; Bin Zhao; Xiaobin Niu

doi:10.3390/ma11020222

Influence of PEG Stoichiometry on Structure-Tuned Formation of Self-Assembled Submicron Nickel Particles

Materials (Basel). 2018 Jan 31;11(2):222. doi: 10.3390/ma11020222.

Authors

Bingxue Pu¹, Liping Wang², Heng Guo³, Jian Yang⁴, Haiyuan Chen⁵, Yajun Zhou⁶, Jin Yang⁶, Bin Zhao⁷, Xiaobin Niu⁸

Affiliations

¹ State Key Laboratory of Electronic Thin Film and Integrated Devices, School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054, China. pubingxue@foxmail.com.
² State Key Laboratory of Electronic Thin Film and Integrated Devices, School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054, China. lipingwang@uestc.edu.cn.
³ State Key Laboratory of Electronic Thin Film and Integrated Devices, School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054, China. guohenguestc@gmail.com.
⁴ State Key Laboratory of Electronic Thin Film and Integrated Devices, School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054, China. yangjian.22@163.com.
⁵ State Key Laboratory of Electronic Thin Film and Integrated Devices, School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054, China. haiyuanchen@foxmail.com.
⁶ State Key Laboratory of Electronic Thin Film and Integrated Devices, School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054, China. yjzhou9180@gmail.com.
⁷ School of Architecture and Urban Planning, Shandong Jianzhu University, Jinan 250101, China. zbkite@sdjzu.edu.cn.
⁸ State Key Laboratory of Electronic Thin Film and Integrated Devices, School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054, China. xbniu@uestc.edu.cn.

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.

Keywords: Ni nanoparticles; magnetic materials; microwave absorption; solvothermal method.