多酸-生物质基碳纳米管复合材料的合成与表征

Synthesis and Characterization of Polyoxometalate-biomass-based Carbon Nanotube Composites

采用自制的生物质基碳纳米管和Keggin类型磷钼酸原料,原位设计合成新型多酸-生物质基碳纳米管复合纳米材料,并系统探究了最佳的合成条件.运用FT-IR、XRD、Raman等测试方法,对新型纳米材料的结构进行了表征.结果表明,在80℃、混合酸Ⅰ(HNO3/H2SO4)条件下回流2 h得到的复合材料中的碳纳米管质量最好,结构缺陷最少,且母体Keggin类型多酸的骨架结构完整.

Using self-made biomass-based carbon nanotubes and Keggin type phosphomolybdic acid as raw materials,a novel polyacid-biomass-based carbon nanotube composite nanomaterial was designed and synthesized in situ,and the optimal synthesis conditions were systematically investigated.The structure and morphology of the new nano-materials were characterized by FT-IR.XRD and Raman.The results show that the carbon nanotubes in the composite obtained by refluxing for 2 h at 80℃with mixed acid I(HNO3/H2SO4)have the best quality and the least structural defects,and the matrix structure of Keggin type polyacid is complete.