Method and apparatus for determining the length of single-walled carbon nanotubes
    1.
    发明授权
    Method and apparatus for determining the length of single-walled carbon nanotubes 失效
    用于确定单壁碳纳米管长度的方法和装置

    公开(公告)号:US06962092B2

    公开(公告)日:2005-11-08

    申请号:US10836551

    申请日:2004-04-30

    摘要: The present invention is directed to at least one method and at least one apparatus for determining the length of single-wall carbon nanotubes (SWNTs). The method generally comprises the steps of: dispersing a sample of SWNTs into a suitable dispersing medium to form a solvent-suspension of solvent-suspended SWNTs; determining the mean SWNT diameter of the solvent-suspended SWNTs; introducing the solvent-suspended SWNTs into a viscosity-measuring device; obtaining a specific viscosity for the SWNT solvent-suspension; and determining the length of the SWNTs based upon the specific viscosity by solving, for example, the Kirkwood-Auer equation corrected by Batchelor's formula for the drag on a slender cylinder for “L,” to determine the length of the SWNTs. The apparatus generally comprises: a SWNT sample introduction mechanism; a dispersal chamber; a SWNT radius-determination chamber; and a viscosity determining chamber, wherein the SWNT sample introduction mechanism, the dispersal chamber, the SWNT radius-determination chamber, and the viscosity determination chamber are each operatively connected to at least one of the others.

    摘要翻译: 本发明涉及用于确定单壁碳纳米管(SWNT)的长度的至少一种方法和至少一种装置。 该方法通常包括以下步骤:将SWNT样品分散到合适的分散介质中以形成溶剂悬浮的SWNT的溶剂 - 悬浮液; 确定溶剂悬浮的SWNT的平均SWNT直径; 将溶剂悬浮的SWNT引入粘度测量装置中; 获得SWNT溶剂 - 悬浮液的比粘度; 以及通过解决例如通过Batchelor公式修正的Kirkwood-Auer方程式来确定SWNTs的长度,以便通过在“L”的细长圆筒上拖动来确定SWNT的长度。 该装置通常包括:SWNT样品引入机构; 分散室; SWNT半径测定室; 和粘度确定室,其中SWNT样品引入机构,分散室,SWNT半径确定室和粘度确定室各自可操作地连接到至少其中之一。