二硫化钼基纳米复合材料的构筑与应用

Advances in Synthesis and Applications of Molybdenum Disulfide Based Nanocomposites

二硫化钼(Mo S_2)具有典型的层状结构,易于形成寡层Mo S_2纳米片,具有丰富的光、电、催化性能,在光电信息与能源转换等领域有广泛应用潜力.采用含钼化工原料并通过湿化学、气相沉积等方法制备寡层Mo S_2纳米片,继而构筑Mo S_2纳米片基功能纳米复合材料,是目前国内外的研究热点;但是,以化工钼试剂为原料制备Mo S_2纳米片的工艺路线长且不绿色.而辉钼矿是以层状Mo S_2为主要组分的矿物,在我国储量大,是制备寡层Mo S_2纳米材料的良好原料,因此,以经提纯处理的层状结构辉钼矿为直接原料,采用插层-剥离技术制备寡层Mo S_2纳米片是一种低碳经济途径.

Molybdenum disulfide（ Mo S_2） with a typical layered structure easily forms few-layered Mo S_2 nanosheets,and has a wealth of optical,electrical and catalytic performance with wide application potentials in areas such as photo-electrical and energy conversion. The preparation of few-layered Mo S_2 nanocrystals and Mo S_2-based nanocomposites using molybdenum-containing chemicals as starting materials by wet-chemical and vapor-deposition methods are the cutting-edge focuses of recent research. However,the synthesis of Mo S_2 nanocrystals from chemical reagents with a long route is not low-carbon and environment friendly. Molybdenite is a typical layered mineral and composed of layered Mo S_2 units. The amount of molybdenite in China is huge and it is a green and low-carbon way to prepare few-layered Mo S_2 nanomaterials via the intercalation-exfoliation strategy using the purified molybdenite as the direct raw materials.