Bera Debasis, Perrault Jean-Philippe, Heinrich Helge, Seal Sudipta
Surface Engineering and Nanotechnology Facility, Department of Mechanical, Material and Aerospace Engineering, University of Central Florida, Orlando 32816, USA.
J Nanosci Nanotechnol. 2006 Apr;6(4):1084-91. doi: 10.1166/jnn.2006.156.
Carbon nanostructures are synthesized using a novel arc-discharge in solution process. A multitude of defects on nanotubes and nanostructures is found. Evidence of these defects in as-synthesized carbon nanostructures is explored using high-resolution transmission electron microscopy (HRTEM). Tri-, tetra-, penta-, hexa-, heptagonal, toroidal, oval, and spherical nanoshells are found in HRTEM investigation along with carbon nanotubes, carbon nanohorns, carbon rods, nanoporous carbon, dislodged graphene sheets, and amorphous carbon. Purifications are carried out through two oxidation methods to eliminate the amorphous carbon. Several different defects caused by oxidations are also found in purified samples.
采用一种新颖的溶液电弧放电法合成了碳纳米结构。发现纳米管和纳米结构上存在大量缺陷。利用高分辨率透射电子显微镜（HRTEM）对合成态碳纳米结构中的这些缺陷证据进行了探究。在HRTEM研究中发现了三边形、四边形、五边形、六边形、七边形、环形、椭圆形和球形纳米壳，以及碳纳米管、碳纳米角、碳棒、纳米多孔碳、脱落的石墨烯片和非晶碳。通过两种氧化方法进行纯化以去除非晶碳。在纯化后的样品中也发现了由氧化引起的几种不同缺陷。
