二硫化钼纳米片/碳纳米纤维杂化材料的制备及其析氢性能

以碳纳米纤维（CNFs）作为负载基体和反应器采用静电纺丝技术和碳化工艺生长和调控二硫化钼（MoS₂）纳米片。通过改变前驱体溶液浓度来调控纳米片的形貌和结构，利用MoS₂纳米片的高催化活性和CNFs高比表面积、良好的稳定性以及高电导率的协同作用，研究不同形貌和结构的杂化纳米材料在电催化析氢方面的应用，探索杂化材料形貌与性能之间的潜在规律。运用多种分析测试技术对制备得到的纳米杂化材料进行表征，并对所制备的MoS₂/CNFs杂化材料的电催化析氢性能（HER）进行研究，研究表明近似皮芯结构的MoS₂/CNFs-10杂化材料的电催化析氢性能最好，初始析氢过电位在220 mV，Tafel斜率为110 mV·dec^-1。

Synthesis and Hydrogen Evolution Performance of Molybdenum Disulfide Nanosheets/Carbon Nanofibers Hybrid Materials

Carbon nanofibers (CNFs) was produced as load matrix and reactor based on the electrospinning technology and carbonization process, which is used as nanoreactor for the grouth and regulation of molybdenum disulfide (MoS₂) nanosheets. Taking the advantage of high catalytic activity of MoS₂ nanosheets, high specific surface area, good stability, and high electrical conductivity of carbon nanofibers (CNFs), we have investigated the electrocatalytic activity of MoS₂/CNFs with different morphologies and structures for hydrogen evolution reaction (HER). A variety of analytical techniques were used to investigate the prepared hybrid nanomaterials. Meanwhile, MoS₂/CNFs hybrid materials were used to study the electrocatalytic activity, and it is found that the MoS₂/CNFs-10 with core-shell structure for HER has the best electrocatalytic activity with onset potential of 220 mV and Tafel slope of 110 mV·dec^-1.