介绍了两步水热反应制备石墨烯/二硫化钼/钴（RGO/MoS₂/Co）复合物的方法，在保护气体Ar气中通过800℃退火提高Co的纯度。为了探究RGO/MoS₂/Co复合物在柔性自旋器件方面的应用，利用X射线衍射、透射电镜、拉曼等技术对RGO/MoS₂/Co的结构和形貌进行表征，并结合磁性测试（VSM）探讨其微观结构和磁性行为。结果发现，大小约10~20 nm钴粒子成功嵌入到网状交联的RGO/MoS₂中，复合物在低温和常温下均表现出铁磁性，使其有望应用于设计的柔性自旋器件中。

RGO/MoS₂/Co nanocomposites are fabricated through a facile two-step hydrothermal process and annealed in Ar at 800℃ to improve the purity of Co.The microstructure and magnetic properties of RGO/MoS₂/Co nanocomposites are investigated by means of VSM and the structure and morphology of the nanocomposites are analyzed by X-ray diffraction (XRD),high-resolution transmission electron microscopy (HRTEM) and Raman spectra (RAMAN).These results display that Co nanoparticles with a size of 10-20 nm are trapped in the network of the crumpled RGO/MoS₂.Magnetization measurements demonstrate that RGO/MoS₂/Co shows ferromagnetic property,which supplies possibility that it can be used in the flexible spintronic devices designed.

徐一帆(1991-),女,硕士研究生,主要研究方向为低维纳米材料,xuyifan8@whu.edu.cn