1T/2H-二硫化钼的制备及其电析氢性能研究

Preparation of 1T/2H MoS_(2) and Their Electrochemical Hydrogen Evolution Property

二硫化钼作为一种天然二维材料,对于取代贵金属铂基催化剂进行析氢反应具有巨大的潜力.然而电导率较差和本征活性低限制了其在析氢反应中的应用.通过探索前驱体铵源和钼源的比例和加入丙酸含量的影响,制备了具有更多活性位点和更高电导率的1T/2H-二硫化钼,并对其电析氢反应性能进行了测试.结果表明:1T/2H-二硫化钼的电析氢性能较2H-二硫化钼有极大的优势,效率更高.

As a natural two-dimensional material,molybdenum disulfide has great potential for hydrogen evolution reactions that replace precious metal platinum-based catalysts.However,poor conductivity and low intrinsic activity limit its application in hydrogen evolution reactions.By exploring the effects of the ratio of precursor ammonium sources and molybdenum sources and the content of propionic added,1T/2H phase molybdenum disulfide with more active sites and higher conductivity is prepared,and its performance in electrolysis hydrogen reaction is tested.The results show that the electrocatalytic hydrogen evolution performance of 1T/2H-molybdenum disulfide has great advantages and higher efficiency than 2H-molybdenum disulfide.