Preparation method of Bi-MoS2 nano composite material for electrocatalytic synthesis of ammonia

The invention relates to a preparation method of a Bi-MoS2 nano composite material for electrocatalytic synthesis of ammonia, and belongs to the technical field of nano materials. The Bi-MoS2 nanocomposite takes molybdenum disulfide as a substrate, and bismuth nanocrystals are compounded on the molybdenum disulfide substrate; molybdenum disulfide is used as a substrate, and bismuth nanocrystals and molybdenum disulfide nanosheets are compounded through a hydrothermal reaction. The preparation process is simple and feasible, low in cost and environment-friendly, excellent electrochemical activity can be shown under the condition that precious metal is not utilized, the ammonia yield can reach 15 microgram h mg cat, and the Faraday efficiency can reach 25%. 本发明涉及一种用于电催化合成氨的Bi-MoS2纳米复合材料的制备方法，属于纳米材料技术领域；所述Bi-MoS2纳米复合材料以二硫化钼为基底，铋纳米晶体复合在二硫化钼基底上；以二硫化钼为基底，通过水热反应将铋纳米晶体与二硫化钼纳米片进行复合。本发明的制备过程简单可行，成本低廉且对环境友好，在不利用贵金属的条件下能够表现出优异的电化学活性，氨产率可达～15μg h-1mg-1cat，法拉第效率可达～25％。