摘要
为了制备一维纳米结构的WS2纳米带,提出了一种两步水热法合成方法。以Na2WO4为前驱体水热合成了WO3.xH2O纳米棒,然后用WO3.xH2O纳米棒与硫脲进行水热反应合成WS2纳米带。初步讨论了两步水热法合成WS2纳米带的反应机理.用X-射线衍射(XRD),透射电镜(TEM)和场发射扫描电镜(FE-SEM)对样品进行了表征.结果显示WS2纳米带的平均带宽约140 nm,厚度约30 nm,长度约1μm,比表面积为97 m2/g.
A two-step facile hydrothermal method was presented for preparing one dimensional nanostructured WS2 nanobelts. WO3·xH2O nanorods were prepared by hydrothermal route using Na2WO4 as precursor. Then WS2 nanobelts were prepared by hydrothermal reaction of WO3· xH2O nanorods and sulfourea. The reaction mechanism for preparing WS2 nanoblets by the two-step hydrothermal method was discussed. X-ray diffraction （XRD）, transmission electron microscope （TEM） and field-emission scanning electron microscope （FE-SEM） were used to characterize the samples. The results showed that the WS2 nanobelts were about 140 nm in width, 30 nm in thickness and 1μm in length, and that their specific surface area was 97m^2/g.
出处
《浙江大学学报（工学版）》
EI
CAS
CSCD
北大核心
2006年第5期832-835,共4页
Journal of Zhejiang University：Engineering Science
基金
国家自然科学基金资助项目(50171063)
教育部博士点专项基金资助项目(20050335086)
关键词
WS2纳米带
纳米棒
水热反应
WS2 nanobelts
nanorods
hydrothermal reactions
