In this study, we investigated electric explosion of iron wire in distilled water with different energy input adjusted by charging voltage. The as-prepared samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS), showing the presence of iron and multiple iron-based compounds oxides with contents influenced by the experimental conditions. In particular, pure FeO(OH) nanoparticles were obtained using electric explosion of iron wire with energy input of 1125 J at charging voltage of 15 kV. Analysis of discharge current and resistive voltage data indicate that the high energy input induced by strong plasma discharge at high charging voltage is a key factor to form FeO(OH). This study presents a one-step method to synthesize FeO(OH) nanoparticles using electric explosion of iron wire.

在这项研究中，我们研究了通过充电电压调节的不同能量输入的蒸馏水中铁丝的电爆炸。所制备的样品通过 X 射线衍射 (XRD)、扫描电子显微镜 (SEM)、透射电子显微镜 (TEM) 和 X 射线光电子能谱 (XPS) 进行表征，表明存在铁和多种铁基化合物含量受实验条件影响的氧化物。特别是，在充电电压为 15 kV 时，使用能量输入为 1125 J 的铁丝电爆炸获得纯 FeO(OH) 纳米颗粒。放电电流和电阻电压数据分析表明，高充电电压下强等离子体放电引起的高能量输入是形成FeO(OH)的关键因素。