MoS2/核桃壳活性炭复合纳米材料的制备及其电催化析氢性能研究

摘要

以钼酸铵为钼源、硫脲为硫源, 使用核桃壳活性炭通过水热法成功制备二硫化钼 (MoS2) /核桃壳活性炭复合纳米材料.研究了MoS2含量对复合纳米材料形貌、尺寸及电化学性能的影响, 通过X射线粉末衍射仪、冷场发射扫描电子显微镜、比表面积及孔隙度分析仪、线性扫描伏安法对复合纳米材料的结构、形貌、电化学性能进行分析和表征.结果表明, MoS2质量分数为80％的MoS2/核桃壳活性炭复合纳米材料的电催化析氢反应活性最好.%The molybdenum disulfide (MoS2) /walnut-peel-activated carbon nanocomposites were synthesized by a hydrothermal method using ammonium molybdate as the molybdenum source and thiourea as sulfur source.The effects of different quality of MoS2 loading on the morphology, size and electrochemical properties were studied.Scanning electron microscopy (SEM), X-ray diffraction (XRD) and linear cyclic voltammetry (LSV) were applied to characterize the morphology, structure and electrochemical properties of synthesized materials.The results showed that80％ (weight ratio) MoS2/walnut-shell-activated carbon nanocomposites had the best performance of electrochemical hydrogen evolution reaction.