Fujioka Daiki, Ikeda Shingo, Akamatsu Kensuke, Nawafune Hidemi, Kojima Kazuo
Department of Applied Chemistry, College of Life Sciences, Ritsumeikan University 1-1-1 Noji-Higashi Kusatsu-City Shiga 525-8577 Japan
Electronic Materials Research Division, Osaka Research Institute of Industrial Science and Technology 1-6-50 Morinomiya, Joto-ku Osaka 536-8553 Japan.
RSC Adv. 2019 Feb 22;9(12):6438-6443. doi: 10.1039/c9ra00182d.
Nickel-nanoparticle-containing polyimide composite films were prepared by liquid-phase reduction of Ni ions with potassium borohydride (KBH). The nanoparticles were amorphous with diameters of approximately 10-20 nm, depending on the KBH concentration and reduction temperature. At high KBH concentrations, the nanoparticles appeared to contain various nickel boride species. The number of nanoparticles and Ni content both increased upon repeated adsorption/reduction of Ni ions, where the particle growth was inhibited by the rigid polymer chain and the formation of smaller particles was favored.
通过用硼氢化钾（KBH）对镍离子进行液相还原制备了含镍纳米颗粒的聚酰亚胺复合薄膜。纳米颗粒为非晶态，直径约为10 - 20纳米，这取决于KBH的浓度和还原温度。在高KBH浓度下，纳米颗粒似乎包含各种硼化镍物种。通过重复吸附/还原镍离子，纳米颗粒的数量和镍含量均增加，其中颗粒生长受到刚性聚合物链的抑制，并且更有利于形成较小的颗粒。
