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

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
School of Architecture and Urban Planning, Shandong Jianzhu University, Jinan 250101, China
Authors to whom correspondence should be addressed.
Materials 2018, 11(2), 222;
Received: 2 January 2018 / Revised: 29 January 2018 / Accepted: 29 January 2018 / Published: 31 January 2018
(This article belongs to the Special Issue Advanced Functional Nanomaterials and Their Applications)
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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. View Full-Text
Keywords: Ni nanoparticles; solvothermal method; magnetic materials; microwave absorption Ni nanoparticles; solvothermal method; magnetic materials; microwave absorption

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Pu, B.; Wang, L.; Guo, H.; Yang, J.; Chen, H.; Zhou, Y.; Yang, J.; Zhao, B.; Niu, X. Influence of PEG Stoichiometry on Structure-Tuned Formation of Self-Assembled Submicron Nickel Particles. Materials 2018, 11, 222.

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