机磨热加工法是批量制取碳纳米管(CNTs)的方法之一.在氩气氛中研磨鳞片石墨为无定形的纳米炭粉,而后在1350℃～1380℃下退火获得碳纳米管(CNTs).用XRD,SEM,FE-TEM,HRTEM和拉曼光谱对纳米炭粉及CNTs进行表征.发现:CNTs具有不同的形貌,长度约几毫米,直径为30nm～70nm.螺旋状多壁碳纳米管有高的长径比(～1000)和高的结晶度(ID/IG:～0.03).
A mechanothermal method is one of the methods used for the large scale production of carbon nanotubes (CNTs). The flake graphite was milled under argon atmosphere to nanometer sized carbon in amorphous state, and was then annealed at high temperature(1350-1380℃) to yield CNTs. The milled graphites and CNTs were characterized by XRD, SEM, FE-TEM, HRTEM, and Raman spectroscopy. It is found that the CNTs have a length of several millimeters and a diameter of 30-70 nm with different morphologies. The spring-like MWCNTs have a high aspect ratio (～1000) and a high crystallinity (ID/IG～0.03 ).
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