Abstract In this study, a simple fabrication of carbon composited Fe3O4 nanoparticles was carried out under reflux condition using glucose as a carbon precursor. The carbon composited Fe3O4 nanoparticles having a core-shell structure were synthesized in a low-temperature and low-pressure atmosphere instead of in an autoclave. Simple carbonization without inert gas and extra heating was complemented by adding sulfuric acid, which has an important role as a carbonization catalyst. In addition, sulfuric acid also acted as the controller of such surface properties as surface area by an etching effect. The prepared nanoparticles have uniform and continuous carbon layers, which have several functions, such as stable dispersibility and an increase of electron conductivity. carbon composited Fe3O4 nanoparticles were investigated with zeta-potential, particle size distribution, Fourier transform infrared, scanning electron microscopy, transmission electron microscopy, Raman spectroscopy, and a vibrating sample magnetometer. The results provide clear evidence that carbon-coated Fe3O4 nanoparticles are applicable in electrochemical industrial fields.

中文翻译：

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通过常压液体反应在水性溶剂中的高分散性碳复合 Fe3O4 纳米粒子

摘要 在本研究中，以葡萄糖为碳前驱体，在回流条件下简单制备了碳复合 Fe3O4 纳米颗粒。具有核壳结构的碳复合Fe3O4纳米粒子是在低温低压气氛中而不是在高压釜中合成的。简单的碳化不需要惰性气体和额外的加热，通过添加硫酸来补充，硫酸具有重要的碳化催化剂作用。此外，硫酸还通过蚀刻效应作为表面积等表面特性的控制者。制备的纳米粒子具有均匀连续的碳层，具有稳定的分散性和增加电子传导性等多种功能。用 zeta 电位研究了碳复合 Fe3O4 纳米粒子，粒度分布、傅里叶变换红外、扫描电子显微镜、透射电子显微镜、拉曼光谱和振动样品磁强计。结果提供了明确的证据，表明碳包覆的 Fe3O4 纳米粒子适用于电化学工业领域。