We study the kinetic characteristics and properties of the product of the process of synthesizing nickel nanopowders by the hydrogen reduction of Ni(OH)₂ hydroxide compound under nonisothermal conditions. It is shown that the process of hydrogen reduction of the nanopowder of Ni(OH)₂ hydroxide takes place within the temperature range 210–300°C with the maximal specific rate equal to 9.44·10⁻⁸ kg/sec recorded at a temperature of 285°C. The activation energy of the process of reduction of Ni(OH)₂ nanopowder under nonisothermal conditions was estimated as ≈ 54 kJ/mole, which confirms the kinetic conditions of limiting of the process. It is shown that the elevation of temperature up to 285°C enables us to efficiently increase the rate of the total process of hydrogen reduction of Ni(OH)₂ nanopowder (with guaranteeing high quality of the products of reduction). The obtained Ni nanoparticles mainly have round shapes and the sizes from ten to several tens of nanometers with a mean value of 50 nm.

我们研究了在非等温条件下通过氢还原Ni（OH）₂氢氧化物化合物合成镍纳米粉体过程的产物的动力学特性和性能。结果表明，Ni（OH）₂氢氧化物纳米粉体的氢还原过程是在210–300°C的温度范围内发生的，最大比重等于9.44·10 ^-8 kg / sec。 285℃。Ni（OH）₂还原过程的活化能非等温条件下的纳米粉估计为≈54 kJ / mol，这证​​实了限制该过程的动力学条件。结果表明，温度升高到285°C使我们能够有效提高Ni（OH）₂纳米粉氢还原全过程的速率（同时保证还原产物的高质量）。所获得的Ni纳米颗粒主要为圆形，尺寸为十至几十纳米，平均值为50nm。